fix: setCacheHas JSDoc return type should be boolean (#6071)

* extend falsy values to include negative zero and BigInt zeros in _.compact JSDoc

* refactor: correct spell falsey to falsy

Co-authored-by: Jordan Harband <ljharb@gmail.com>

---------

Co-authored-by: Jordan Harband <ljharb@gmail.com>

.editorconfig

@@ -0,0 +1,12 @@
+# This file is for unifying the coding style for different editors and IDEs
+# editorconfig.org
+
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_size = 2
+indent_style = space
+insert_final_newline = true
+trim_trailing_whitespace = true

.gitattributes

@@ -1,5 +1 @@
 * text=auto
-*.html text eol=lf
-*.js text eol=lf
-*.md text eol=lf
-*.sh text eol=lf

.github/CONTRIBUTING.md

@@ -0,0 +1,78 @@
+# Contributing to Lodash
+
+Contributions are always welcome. Before contributing please read the
+[code of conduct](https://github.com/openjs-foundation/cross-project-council/blob/main/CODE_OF_CONDUCT.md) &
+[search the issue tracker](https://github.com/lodash/lodash/issues); your issue
+may have already been discussed or fixed in `master`. To contribute,
+[fork](https://help.github.com/articles/fork-a-repo/) Lodash, commit your changes,
+& [send a pull request](https://help.github.com/articles/using-pull-requests/).
+
+## Feature Requests
+
+Feature requests should be submitted in the
+[issue tracker](https://github.com/lodash/lodash/issues), with a description of
+the expected behavior & use case, where they’ll remain closed until sufficient interest,
+[e.g. :+1: reactions](https://help.github.com/articles/about-discussions-in-issues-and-pull-requests/),
+has been [shown by the community](https://github.com/lodash/lodash/issues?q=label%3A%22votes+needed%22+sort%3Areactions-%2B1-desc).
+Before submitting a request, please search for similar ones in the
+[closed issues](https://github.com/lodash/lodash/issues?q=is%3Aissue+is%3Aclosed+label%3Aenhancement).
+
+## Pull Requests
+
+For additions or bug fixes you should only need to modify `lodash.js`. Include
+updated unit tests in the `test` directory as part of your pull request. Don’t
+worry about regenerating the `dist/` or `doc/` files.
+
+Before running the unit tests you’ll need to install, `npm i`,
+[development dependencies](https://docs.npmjs.com/files/package.json#devdependencies).
+Run unit tests from the command-line via `npm test`, or open `test/index.html` &
+`test/fp.html` in a web browser. The [Backbone](http://backbonejs.org/) &
+[Underscore](http://underscorejs.org/) test suites are included as well.
+
+## Contributor License Agreement
+
+Lodash is a member of the [Open JS Foundation](https://openjsf.org/).
+As such, we request that all contributors sign our
+[contributor license agreement (CLA)](https://openjsf.org/cla).
+
+For more information about CLAs, please check out Alex Russell’s excellent post,
+[“Why Do I Need to Sign This?”](https://infrequently.org/2008/06/why-do-i-need-to-sign-this/).
+
+## Coding Guidelines
+
+In addition to the following guidelines, please follow the conventions already
+established in the code.
+
+- **Spacing**:<br>
+  Use two spaces for indentation. No tabs.
+
+- **Naming**:<br>
+  Keep variable & method names concise & descriptive.<br>
+  Variable names `index`, `array`, & `iteratee` are preferable to
+  `i`, `arr`, & `fn`.
+
+- **Quotes**:<br>
+  Single-quoted strings are preferred to double-quoted strings; however,
+  please use a double-quoted string if the value contains a single-quote
+  character to avoid unnecessary escaping.
+
+- **Comments**:<br>
+  Please use single-line comments to annotate significant additions, &
+  [JSDoc-style](http://www.2ality.com/2011/08/jsdoc-intro.html) comments for
+  functions.
+
+Guidelines are enforced using [JSCS](https://www.npmjs.com/package/jscs):
+```bash
+$ npm run style
+```
+
+## Tips
+
+You can opt-in to a pre-push git hook by adding an `.opt-in` file to the root of
+the project containing:
+```txt
+pre-push
+```
+
+With that, when you `git push`, the pre-push git hook will trigger and execute
+`npm run validate`.

.github/workflows/browser-testing.yml

@@ -0,0 +1,39 @@
+name: CI Browsers
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    # Run on every PR, regardless of branch
+    branches: [ '*' ]
+  workflow_dispatch:
+
+jobs:
+  test-docs:
+    name: Modern Browsers Test
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: '24'
+
+      - name: Install dependencies
+        run: |
+          npm install
+          npx playwright install --with-deps
+          npm install -D @playwright/test@latest
+
+      - name: Build project
+        run: npm run build
+
+      - name: Start server
+        run: |
+          npx http-server -p 9001 &
+          sleep 2
+
+      - name: Run Playwright tests
+        run: npx playwright test

.github/workflows/ci-bun.yml

@@ -0,0 +1,34 @@
+name: CI Bun
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+
+jobs:
+  test:
+    name: Bun CI
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        bun-version: [1.0.0, 1.1.0, 1.2.0, 1.3.0]
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v1
+        with:
+          bun-version: ${{ matrix.bun-version }}
+
+      # TODO: Remove this step once the lockfile has been updated to v3 in the repository
+      - name: Install npm dependencies (lockfile v3)
+        run: npm i --lockfile-version 3 --package-lock-only
+
+      - name: Install dependencies
+        run: bun install
+
+      - name: Run validate
+        run: bun run validate

.github/workflows/ci-docs.yml

@@ -0,0 +1,32 @@
+name: CI Docs
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    # Run on every PR, regardless of branch
+    branches: [ '*' ]
+
+jobs:
+  test-docs:
+    name: Docs Test
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js (latest)
+        uses: actions/setup-node@v4
+        with:
+          node-version: 'node' # Use 'node' for the latest version
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm install
+
+      - name: Test documentation
+        run: |
+          npm run doc:fp
+          npm run doc:site
+          npm run doc

.github/workflows/ci-node.yml

@@ -0,0 +1,61 @@
+name: CI Node.js
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+
+jobs:
+  test:
+    name: Node.js ${{ matrix.node-version }} on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest]
+        node-version: [
+          '4',
+          '5',
+          '6',
+          '7',
+          '8',
+          '9',
+          '10',
+          '11',
+          '12',
+          '13',
+          '14',
+          '15',
+          '16',
+          '17',
+          '18',
+          '19',
+          '20',
+          '21',
+          '22',
+          '23',
+          '24',
+          '25'
+        ]
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+      
+    - name: Setup Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v4
+      with:
+        node-version: ${{ matrix.node-version }}
+        cache: 'npm'
+
+    # This is due to bugs in npm 3’s handling of newer package formats.  
+    - name: Use npm@3.10.10 for Node@5
+      if: matrix.node-version == '5'
+      run: npm install -g npm@3.10.10
+
+    - name: Install dependencies
+      run: npm install
+      
+    - name: Run Validate
+      run: npm run validate

.github/workflows/codeql.yml

@@ -0,0 +1,73 @@
+# For most projects, this workflow file will not need changing; you simply need
+# to commit it to your repository.
+#
+# You may wish to alter this file to override the set of languages analyzed,
+# or to provide custom queries or build logic.
+#
+# ******** NOTE ********
+# We have attempted to detect the languages in your repository. Please check
+# the `language` matrix defined below to confirm you have the correct set of
+# supported CodeQL languages.
+#
+name: "CodeQL"
+
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: ["main"]
+  schedule:
+    - cron: "0 0 * * 1"
+
+permissions:
+  contents: read
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: ["javascript"]
+        # CodeQL supports [ $supported-codeql-languages ]
+        # Learn more about CodeQL language support at https://aka.ms/codeql-docs/language-support
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+
+      # Initializes the CodeQL tools for scanning.
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@42213152a85ae7569bdb6bec7bcd74cd691bfe41 # v3.30.9
+        with:
+          languages: ${{ matrix.language }}
+          # If you wish to specify custom queries, you can do so here or in a config file.
+          # By default, queries listed here will override any specified in a config file.
+          # Prefix the list here with "+" to use these queries and those in the config file.
+
+      # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
+      # If this step fails, then you should remove it and run the build manually (see below)
+      - name: Autobuild
+        uses: github/codeql-action/autobuild@42213152a85ae7569bdb6bec7bcd74cd691bfe41 # v3.30.9
+
+      # ℹ️ Command-line programs to run using the OS shell.
+      # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
+
+      #   If the Autobuild fails above, remove it and uncomment the following three lines.
+      #   modify them (or add more) to build your code if your project, please refer to the EXAMPLE below for guidance.
+
+      # - run: |
+      #   echo "Run, Build Application using script"
+      #   ./location_of_script_within_repo/buildscript.sh
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@42213152a85ae7569bdb6bec7bcd74cd691bfe41 # v3.30.9
+        with:
+          category: "/language:${{matrix.language}}"

.github/workflows/renovate.yml

@@ -0,0 +1,19 @@
+name: Renovate
+on:
+  schedule:
+    - cron: '0 23 1 * *'  # 23:00 on the first day of each month
+  workflow_dispatch:       # allow manual runs
+
+jobs:
+  renovate:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v5.0.0
+      - name: Self-hosted Renovate
+        uses: renovatebot/github-action@v44.0.0
+        with:
+          configurationFile: renovate.json
+        env:
+          RENOVATE_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          LOG_LEVEL: info

.github/workflows/scorecards.yml

@@ -0,0 +1,58 @@
+name: Scorecard supply-chain security
+on:
+  # For Branch-Protection check. Only the default branch is supported. See
+  # https://github.com/ossf/scorecard/blob/main/docs/checks.md#branch-protection
+  branch_protection_rule:
+  # To guarantee Maintained check is occasionally updated. See
+  # https://github.com/ossf/scorecard/blob/main/docs/checks.md#maintained
+  schedule:
+    - cron: '20 7 * * 2'
+  push:
+    branches: ["main"]
+
+# Declare default permissions as read only.
+permissions: read-all
+
+jobs:
+  analysis:
+    name: Scorecard analysis
+    runs-on: ubuntu-latest
+    permissions:
+      # Needed to upload the results to code-scanning dashboard.
+      security-events: write
+      # Needed to publish results and get a badge (see publish_results below).
+      id-token: write
+      contents: read
+      actions: read
+      # To allow GraphQL ListCommits to work
+      issues: read
+      pull-requests: read
+      # To detect SAST tools
+      checks: read
+
+    steps:
+      - name: "Checkout code"
+        uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+        with:
+          persist-credentials: false
+
+      - name: "Run analysis"
+        uses: ossf/scorecard-action@62b2cac7ed8198b15735ed49ab1e5cf35480ba46 # v2.4.0
+        with:
+          results_file: results.sarif
+          results_format: sarif
+          publish_results: true
+
+      # Upload the results as artifacts so they can be downloaded later if needed.
+      - name: "Upload artifact"
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        with:
+          name: SARIF file
+          path: results.sarif
+          retention-days: 5
+
+      # Upload the results to GitHub's code scanning dashboard.
+      - name: "Upload to code-scanning"
+        uses: github/codeql-action/upload-sarif@42213152a85ae7569bdb6bec7bcd74cd691bfe41 # v3.30.9
+        with:
+          sarif_file: results.sarif

.gitignore

@@ -1,10 +1,4 @@
 .DS_Store
-*.custom.*
-*.template.*
-*.map
-/*.min.*
-modularize
+*.log
+doc/*.html
 node_modules
-dist/*.backbone.*
-dist/*.legacy.*
-dist/*.mobile.*

.jscsrc

@@ -0,0 +1,97 @@
+{
+  "maxErrors": "2000",
+  "maximumLineLength": {
+    "value": 180,
+    "allExcept": ["comments", "functionSignature", "regex"]
+  },
+  "requireCurlyBraces": [
+    "if",
+    "else",
+    "for",
+    "while",
+    "do",
+    "try",
+    "catch"
+  ],
+  "requireOperatorBeforeLineBreak": [
+    "=",
+    "+",
+    "-",
+    "/",
+    "*",
+    "==",
+    "===",
+    "!=",
+    "!==",
+    ">",
+    ">=",
+    "<",
+    "<="
+  ],
+  "requireSpaceAfterKeywords": [
+    "if",
+    "else",
+    "for",
+    "while",
+    "do",
+    "switch",
+    "return",
+    "try",
+    "catch"
+  ],
+  "requireSpaceBeforeBinaryOperators": [
+    "=", "+=", "-=", "*=", "/=", "%=", "<<=", ">>=", ">>>=",
+    "&=", "|=", "^=",
+
+    "+", "-", "*", "/", "%", "<<", ">>", ">>>", "&",
+    "|", "^", "&&", "||", "===", "==", ">=",
+    "<=", "<", ">", "!=", "!=="
+  ],
+  "requireSpacesInFunctionExpression": {
+    "beforeOpeningCurlyBrace": true
+  },
+  "requireCamelCaseOrUpperCaseIdentifiers": true,
+  "requireDotNotation": { "allExcept": ["keywords"] },
+  "requireEarlyReturn": true,
+  "requireLineFeedAtFileEnd": true,
+  "requireSemicolons": true,
+  "requireSpaceAfterBinaryOperators": true,
+  "requireSpacesInConditionalExpression": true,
+  "requireSpaceBeforeObjectValues": true,
+  "requireSpaceBeforeBlockStatements": true,
+  "requireSpacesInForStatement": true,
+
+  "validateIndentation": 2,
+  "validateParameterSeparator": ", ",
+  "validateQuoteMarks": { "mark": "'", "escape": true },
+
+  "disallowSpacesInAnonymousFunctionExpression": {
+    "beforeOpeningRoundBrace": true
+  },
+  "disallowSpacesInFunctionDeclaration": {
+    "beforeOpeningRoundBrace": true
+  },
+  "disallowSpacesInFunctionExpression": {
+    "beforeOpeningRoundBrace": true
+  },
+  "disallowKeywords": ["with"],
+  "disallowMixedSpacesAndTabs": true,
+  "disallowMultipleLineBreaks": true,
+  "disallowNewlineBeforeBlockStatements": true,
+  "disallowSpaceAfterObjectKeys": true,
+  "disallowSpaceAfterPrefixUnaryOperators": true,
+  "disallowSpacesInCallExpression": true,
+  "disallowSpacesInsideArrayBrackets": true,
+  "disallowSpacesInsideParentheses": true,
+  "disallowTrailingWhitespace": true,
+  "disallowUnusedVariables": true,
+
+  "jsDoc": {
+    "checkRedundantAccess": true,
+    "checkTypes": true,
+    "requireNewlineAfterDescription": true,
+    "requireParamDescription": true,
+    "requireParamTypes": true,
+    "requireReturnTypes": true
+  }
+}

.markdown-doctest-setup.js

@@ -0,0 +1,11 @@
+'use strict';
+
+delete global['__core-js_shared__'];
+
+const _ = require('./lodash.js');
+const globals = require('lodash-doc-globals');
+
+module.exports = {
+  'babel': false,
+  'globals': _.assign({ '_': _ }, globals)
+};

.travis.yml

@@ -1,57 +0,0 @@
-language: node_js
-node_js:
-  - "0.6"
-  - "0.8"
-  - "0.10"
-env:
-  global:
-    - BIN="node" BUILD=false MAKE=false OPTION=""
-  matrix:
-    - BUILD="compat"
-    - BUILD="modern"
-    - BUILD="legacy"  MAKE=true
-    - BUILD="mobile"  MAKE=true
-    - BIN="phantomjs" BUILD="compat"
-    - BIN="phantomjs" BUILD="legacy" MAKE=true
-    - BIN="phantomjs" BUILD="mobile" MAKE=true
-matrix:
-  include:
-    - node_js: "0.10"
-      env: BIN="istanbul"
-    - node_js: "0.10"
-      env: BIN="narwhal" BUILD="compat"
-    - node_js: "0.10"
-      env: BIN="narwhal" BUILD="legacy" MAKE=true
-    - node_js: "0.10"
-      env: BIN="rhino"   BUILD="compat"
-    - node_js: "0.10"
-      env: BIN="rhino"   BUILD="legacy" MAKE=true
-    - node_js: "0.10"
-      env: BIN="rhino"   BUILD="compat" OPTION="-require"
-    - node_js: "0.10"
-      env: BIN="rhino"   BUILD="legacy" MAKE=true OPTION="-require"
-    - node_js: "0.10"
-      env: BIN="ringo"   BUILD="compat"
-    - node_js: "0.10"
-      env: BIN="ringo"   BUILD="legacy" MAKE=true
-git:
-  depth: 1
-branches:
-  only:
-    - master
-before_script:
-  - "[ $BIN == 'istanbul' ] && npm install -g istanbul || true"
-  - "[ $BIN == 'narwhal' ] && wget https://github.com/280north/narwhal/archive/v0.3.2.zip && sudo unzip v0.3.2 -d /opt/ && rm v0.3.2.zip || true"
-  - "[ $BIN == 'narwhal' ] && sudo ln -s /opt/narwhal-0.3.2/bin/narwhal /usr/local/bin/narwhal && sudo chmod +x /usr/local/bin/narwhal || true"
-  - "[ $BIN == 'rhino' ] && sudo mkdir /opt/rhino-1.7R5 && sudo wget -O /opt/rhino-1.7R5/js.jar https://oss.sonatype.org/content/repositories/snapshots/org/mozilla/rhino/1.7R5-SNAPSHOT/rhino-1.7R5-20120629.144839-4.jar || true"
-  - "[ $BIN == 'rhino' ] && echo -e '#!/bin/sh\\njava -jar /opt/rhino-1.7R5/js.jar $@' | sudo tee /usr/local/bin/rhino && sudo chmod +x /usr/local/bin/rhino || true"
-  - "[ $BIN == 'ringo' ] && wget http://ringojs.org/downloads/ringojs-0.9.zip && sudo unzip ringojs-0.9 -d /opt && rm ringojs-0.9.zip || true"
-  - "[ $BIN == 'ringo' ] && sudo ln -s /opt/ringojs-0.9/bin/ringo /usr/local/bin/ringo && sudo chmod +x /usr/local/bin/ringo || true"
-script:
-  - "[ $BIN == 'istanbul' ] && $BIN cover ./test/test.js || true"
-  - "[ $MAKE != false ] && git clone --depth=1 --branch=master git://github.com/lodash/lodash-cli.git ./node_modules/lodash-cli || true"
-  - "[ $MAKE != false ] && mkdir ./node_modules/lodash-cli/node_modules && cd ./node_modules/lodash-cli/node_modules/ && ln -s ../../../ ./lodash && cd ../ && npm i . && cd ../../ || true"
-  - "[ $MAKE != false ] && node ./node_modules/lodash-cli/bin/lodash $BUILD -o ./dist/lodash.$BUILD.js || true"
-  - "[ $BUILD != false ] && cd ./test || true" 
-  - "[ $BUILD != false ] && $BIN $OPTION ./test.js ../dist/lodash.$BUILD.js || true"
-  - "[ $BUILD != false ] && $BIN $OPTION ./test.js ../dist/lodash.$BUILD.min.js || true"

CHANGELOG

@@ -0,0 +1 @@
+https://github.com/lodash/lodash/wiki/Changelog

CONTRIBUTING.md

@@ -1,35 +0,0 @@
-# Contributing to Lo-Dash
-
-If you’d like to contribute a feature or bug fix, you can [fork](https://help.github.com/articles/fork-a-repo) Lo-Dash, commit your changes, and [send a pull request](https://help.github.com/articles/using-pull-requests).
-Please make sure to [search the issue tracker](https://github.com/lodash/lodash/issues) first; your issue may have already been discussed or fixed in `master`.
-
-## Tests
-
-Include updated unit tests in the `test` directory as part of your pull request.
-You can run the tests from the command line via `node test/test`, or open `test/index.html` in a web browser.
-The `test/run-test.sh` script attempts to run the tests in [Rhino](https://developer.mozilla.org/en-US/docs/Rhino), [Narwhal](https://github.com/280north/narwhal), [RingoJS](http://ringojs.org/), [PhantomJS](http://phantomjs.org/), and [Node](http://nodejs.org/), before running them in your default browser.
-The [Backbone](http://backbonejs.org/) and [Underscore](http://http://underscorejs.org/) test suites are included as well.
-
-## Contributor License Agreement
-
-Lo-Dash is a member of the [Dojo Foundation](http://dojofoundation.org/).
-As such, we request that all contributors sign the Dojo Foundation [contributor license agreement](http://dojofoundation.org/about/claForm).
-
-For more information about CLAs, please check out Alex Russell’s excellent post, [“Why Do I Need to Sign This?”](http://infrequently.org/2008/06/why-do-i-need-to-sign-this/).
-
-## Coding Guidelines
-
-In addition to the following guidelines, please follow the conventions already established in the code.
-
-- **Spacing**:<br>
-  Use two spaces for indentation. No tabs.
-
-- **Naming**:<br>
-  Keep variable and method names concise and descriptive.<br>
-  Variable names `index`, `collection`, and `callback` are preferable to `i`, `arr`, and `fn`.
-
-- **Quotes**:<br>
-  Single-quoted strings are preferred to double-quoted strings; however, please use a double-quoted string if the value contains a single-quote character to avoid unnecessary escaping.
-
-- **Comments**:<br>
-  Please use single-line comments to annotate significant additions, and [JSDoc-style](http://www.2ality.com/2011/08/jsdoc-intro.html) comments for new methods.

GOVERNANCE.md

@@ -0,0 +1,25 @@
+> [!IMPORTANT]
+> As announced on the [OpenJS Foundation blog](https://openjsf.org/blog/sta-supports-lodash), Lodash has received support from the Sovereign Tech Agency and will transition to the Feature-Complete maturity stage so that it remains stable, secure, and sustainable long-term. As part of this effort, Lodash is rebooting its governance. A draft charter will be published shortly. The upcoming Technical Steering Committee (TSC) is already at work. For transparency, its members are listed below.
+
+# Lodash Governance
+
+## Technical Steering Committee Members
+
+The current Technical Steering Committee (TSC) members are:
+
+- John-David Dalton ([@jdalton](https://github.com/jdalton)), _(Lodash creator)_
+- Jon Church ([@jonchurch](https://github.com/jonchurch))
+- Jordan Harband ([@ljharb](https://github.com/ljharb))
+- Michał Lipiński ([@falsyvalues](https://github.com/falsyvalues))
+- Tobie Langel ([@tobie](https://github.com/tobie))
+- Ulises Gascón ([@ulisesgascon](https://github.com/UlisesGascon))
+
+## Security Triage Team
+
+The Security Triage Team is responsible for assessing and managing vulnerability and incident reports. Security triaging is currently handled by the [TSC](#technical-steering-committee-members).
+
+## Release Team
+
+The Release Team is solely responsible for publishing new versions of Lodash to npm. Its current member is:
+
+- John-David Dalton ([@jdalton](https://github.com/jdalton))

LICENSE

@@ -1,7 +1,17 @@
-Copyright 2012-2013 The Dojo Foundation <http://dojofoundation.org/>
-Based on Underscore.js 1.5.2, copyright 2009-2013 Jeremy Ashkenas,
+Copyright OpenJS Foundation and other contributors <https://openjsf.org/>
+
+Based on Underscore.js, copyright Jeremy Ashkenas,
 DocumentCloud and Investigative Reporters & Editors <http://underscorejs.org/>
 
+This software consists of voluntary contributions made by many
+individuals. For exact contribution history, see the revision history
+available at https://github.com/lodash/lodash
+
+The following license applies to all parts of this software except as
+documented below:
+
+====
+
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the
 "Software"), to deal in the Software without restriction, including
@@ -19,4 +29,19 @@ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+====
+
+Copyright and related rights for sample code are waived via CC0. Sample
+code is defined as all source code displayed within the prose of the
+documentation.
+
+CC0: http://creativecommons.org/publicdomain/zero/1.0/
+
+====
+
+Files located in the node_modules and vendor directories are externally
+maintained libraries used by this software which have their own
+licenses; we recommend you read them, as their terms may differ from the
+terms above.

README.md

@@ -1,143 +1,86 @@
-# Lo-Dash v2.2.0
-A utility library delivering consistency, [customization](http://lodash.com/custom-builds), [performance](http://lodash.com/benchmarks), & [extras](http://lodash.com/#features).
+# lodash v4.17.21
+
+[Site](https://lodash.com/) |
+[Docs](https://lodash.com/docs) |
+[FP Guide](https://github.com/lodash/lodash/wiki/FP-Guide) |
+[Contributing](https://github.com/lodash/lodash/blob/master/.github/CONTRIBUTING.md) |
+[Wiki](https://github.com/lodash/lodash/wiki "Changelog, Roadmap, etc.") |
+[Code of Conduct](https://github.com/openjs-foundation/cross-project-council/blob/main/CODE_OF_CONDUCT.md) |
+[Governance](https://github.com/lodash/lodash/blob/HEAD/GOVERNANCE.md) |
+[Twitter](https://twitter.com/bestiejs) |
+[Chat](https://gitter.im/lodash/lodash)
+
+> [!IMPORTANT]
+> As announced on the [OpenJS Foundation blog](https://openjsf.org/blog/sta-supports-lodash), Lodash has received support from the Sovereign Tech Agency and will transition to the Feature-Complete maturity stage so that it remains stable, secure, and sustainable long-term. As part of this effort, Lodash is rebooting its governance. A draft charter will be published shortly. The upcoming Technical Steering Committee (TSC) is already at work. For transparency, its members are listed in [GOVERNANCE.md](https://github.com/lodash/lodash/blob/HEAD/GOVERNANCE.md).
+
+The [Lodash](https://lodash.com/) library exported as a [UMD](https://github.com/umdjs/umd) module.
+
+Generated using [lodash-cli](https://www.npmjs.com/package/lodash-cli):
+```shell
+$ npm run build
+$ lodash -o ./dist/lodash.js
+$ lodash core -o ./dist/lodash.core.js
+```
 
 ## Download
 
-* Modern builds perfect for newer browsers/environments:<br>
-[Development](https://raw.github.com/lodash/lodash/2.2.0/dist/lodash.js) &
-[Production](https://raw.github.com/lodash/lodash/2.2.0/dist/lodash.min.js)
+ * [Core build](https://raw.githubusercontent.com/lodash/lodash/4.17.21/dist/lodash.core.js) ([~4 kB gzipped](https://raw.githubusercontent.com/lodash/lodash/4.17.21/dist/lodash.core.min.js))
+ * [Full build](https://raw.githubusercontent.com/lodash/lodash/4.17.21/dist/lodash.js) ([~24 kB gzipped](https://raw.githubusercontent.com/lodash/lodash/4.17.21/dist/lodash.min.js))
+ * [CDN copies](https://www.jsdelivr.com/projects/lodash)
 
-* Compatibility builds for older environment support too:<br>
-[Development](https://raw.github.com/lodash/lodash/2.2.0/dist/lodash.compat.js) &
-[Production](https://raw.github.com/lodash/lodash/2.2.0/dist/lodash.compat.min.js)
+Lodash is released under the [MIT license](https://raw.githubusercontent.com/lodash/lodash/4.17.21/LICENSE) & supports modern environments.<br>
+Review the [build differences](https://github.com/lodash/lodash/wiki/build-differences) & pick one that’s right for you.
 
-* Underscore builds to use as a drop-in replacement:<br>
-[Development](https://raw.github.com/lodash/lodash/2.2.0/dist/lodash.underscore.js) &
-[Production](https://raw.github.com/lodash/lodash/2.2.0/dist/lodash.underscore.min.js)
-
-CDN copies are available on [cdnjs](http://cdnjs.com/libraries/lodash.js/) & [jsDelivr](http://www.jsdelivr.com/#!lodash).<br>
-For smaller file sizes, create [custom builds](http://lodash.com/custom-builds) with only the features needed.<br>
-Love modules? We’ve got you covered with [lodash-amd](https://npmjs.org/package/lodash-amd), [lodash-node](https://npmjs.org/package/lodash-node), & [npm packages](https://npmjs.org/browse/keyword/lodash-modularized) per method.
-
-## Dive in
-
-There’s plenty of [documentation](http://lodash.com/docs), [unit tests](http://lodash.com/tests), & [benchmarks](http://lodash.com/benchmarks).<br>
-For a list of upcoming features, check out our [roadmap](https://github.com/lodash/lodash/wiki/Roadmap).<br>
-The full changelog for this release is available on our [wiki](https://github.com/lodash/lodash/wiki/Changelog).
-
-## Features *not* in Underscore
-
- * AMD loader support ([curl](https://github.com/cujojs/curl), [dojo](http://dojotoolkit.org/), [requirejs](http://requirejs.org/), etc.)
- * [_(…)](http://lodash.com/docs#_) supports intuitive chaining
- * [_.at](http://lodash.com/docs#at) for cherry-picking collection values
- * [_.bindKey](http://lodash.com/docs#bindKey) for binding [*“lazy”*](http://michaux.ca/articles/lazy-function-definition-pattern) defined methods
- * [_.clone](http://lodash.com/docs#clone) supports shallow cloning of `Date` & `RegExp` objects
- * [_.cloneDeep](http://lodash.com/docs#cloneDeep) for deep cloning arrays & objects
- * [_.contains](http://lodash.com/docs#contains) accepts a `fromIndex`
- * [_.createCallback](http://lodash.com/docs#createCallback) for extending callbacks in methods & mixins
- * [_.curry](http://lodash.com/docs#curry) for creating [curried](http://hughfdjackson.com/javascript/2013/07/06/why-curry-helps/) functions
- * [_.debounce](http://lodash.com/docs#debounce) & [_.throttle](http://lodash.com/docs#throttle) accept additional `options` for more control
- * [_.findIndex](http://lodash.com/docs#findIndex) & [_.findKey](http://lodash.com/docs#findKey) for finding indexes & keys
- * [_.forEach](http://lodash.com/docs#forEach) is chainable & supports exiting early
- * [_.forIn](http://lodash.com/docs#forIn) for iterating own & inherited properties
- * [_.forOwn](http://lodash.com/docs#forOwn) for iterating own properties
- * [_.isPlainObject](http://lodash.com/docs#isPlainObject) for checking if values are created by `Object`
- * [_.memoize](http://lodash.com/docs#memoize) exposes the `cache` of memoized functions
- * [_.merge](http://lodash.com/docs#merge) for a deep [_.extend](http://lodash.com/docs#extend)
- * [_.parseInt](http://lodash.com/docs#parseInt) for consistent behavior
- * [_.partialRight](http://lodash.com/docs#partialRight) for [partial application](http://lodash.com/docs#partial) from the right
- * [_.pull](http://lodash.com/docs#pull) & [_.remove](http://lodash.com/docs#remove) for mutating arrays
- * [_.random](http://lodash.com/docs#random) supports returning floating-point numbers
- * [_.runInContext](http://lodash.com/docs#runInContext) for easier mocking
- * [_.support](http://lodash.com/docs#support) for flagging environment features
- * [_.template](http://lodash.com/docs#template) supports [*“imports”*](http://lodash.com/docs#templateSettings_imports) options & [ES6 template delimiters](http://people.mozilla.org/~jorendorff/es6-draft.html#sec-7.8.6)
- * [_.transform](http://lodash.com/docs#transform) as a powerful alternative to [_.reduce](http://lodash.com/docs#reduce) for transforming objects
- * [_.where](http://lodash.com/docs#where) supports deep object comparisons
- * [_.zip](http://lodash.com/docs#zip) is capable of unzipping values
- * [_.omit](http://lodash.com/docs#omit), [_.pick](http://lodash.com/docs#pick), &
-   [more](http://lodash.com/docs "_.assign, _.clone, _.cloneDeep, _.first, _.initial, _.isEqual, _.last, _.merge, _.rest") accept callbacks
- * [_.contains](http://lodash.com/docs#contains), [_.toArray](http://lodash.com/docs#toArray), &
-   [more](http://lodash.com/docs "_.at, _.countBy, _.every, _.filter, _.find, _.forEach, _.forEachRight, _.groupBy, _.invoke, _.map, _.max, _.min, _.pluck, _.reduce, _.reduceRight, _.reject, _.shuffle, _.size, _.some, _.sortBy, _.where") accept strings
- * [_.filter](http://lodash.com/docs#filter), [_.map](http://lodash.com/docs#map), &
-   [more](http://lodash.com/docs "_.countBy, _.every, _.find, _.findKey, _.findLast, _.findLastIndex, _.findLastKey, _.first, _.groupBy, _.initial, _.last, _.max, _.min, _.reject, _.rest, _.some, _.sortBy, _.sortedIndex, _.uniq") support *“_.pluck”* & *“_.where”* shorthands
- * [_.findLast](http://lodash.com/docs#findLast), [_.findLastIndex](http://lodash.com/docs#findLastIndex), &
-   [more](http://lodash.com/docs "_.findLastKey, _.forEachRight, _.forInRight, _.forOwnRight") right-associative methods
-
-## Resources
-
- * Posts
-  - [Say “Hello” to Lo-Dash](http://kitcambridge.be/blog/say-hello-to-lo-dash/)
-  - [Custom builds in Lo-Dash 2.0](http://kitcambridge.be/blog/custom-builds-in-lo-dash-2-dot-0/)
-
- * Videos
-  - [Introduction](https://vimeo.com/44154599)
-  - [Origins](https://vimeo.com/44154600)
-  - [Optimizations & builds](https://vimeo.com/44154601)
-  - [Native method use](https://vimeo.com/48576012)
-  - [Testing](https://vimeo.com/45865290)
-  - [CascadiaJS ’12](http://www.youtube.com/watch?v=dpPy4f_SeEk)
-
-## Support
-
-Tested in Chrome 5~29, Firefox 2~24, IE 6-10, Opera 9.25~16, Safari 3-6, Node.js 0.6.8-0.10.18, Narwhal 0.3.2, PhantomJS 1.9.2, RingoJS 0.9, & Rhino 1.7RC5.
-
-## Installation & usage
-
-In browsers:
+## Installation
 
+In a browser:
 ```html
 <script src="lodash.js"></script>
 ```
 
-Using [`npm`](http://npmjs.org/):
-
-```bash
-npm i --save lodash
-
-{sudo} npm i -g lodash
-npm ln lodash
+Using npm:
+```shell
+$ npm i -g npm
+$ npm i --save lodash
 ```
 
-In [Node.js](http://nodejs.org/) & [Ringo](http://ringojs.org/):
-
+In Node.js:
 ```js
+// Load the full build.
 var _ = require('lodash');
-// or as Underscore
-var _ = require('lodash/dist/lodash.underscore');
+// Load the core build.
+var _ = require('lodash/core');
+// Load the FP build for immutable auto-curried iteratee-first data-last methods.
+var fp = require('lodash/fp');
+
+// Load method categories.
+var array = require('lodash/array');
+var object = require('lodash/fp/object');
+
+// Cherry-pick methods for smaller browserify/rollup/webpack bundles.
+var at = require('lodash/at');
+var curryN = require('lodash/fp/curryN');
 ```
 
-**Notes:**
- * Don’t assign values to [special variable](http://nodejs.org/api/repl.html#repl_repl_features) `_` when in the REPL
- * If Lo-Dash is installed globally, run [`npm ln lodash`](http://blog.nodejs.org/2011/03/23/npm-1-0-global-vs-local-installation/) in your project’s root directory *before* requiring it
- * Node.js 0.10.8-0.10.11 [have](https://github.com/joyent/node/issues/5622) [bugs](https://github.com/joyent/node/issues/5688) preventing minified builds
+**Note:**<br>
+Install [n_](https://www.npmjs.com/package/n_) for Lodash use in the Node.js < 6 REPL.
 
-In [Rhino](http://www.mozilla.org/rhino/):
+## Why Lodash?
 
-```js
-load('lodash.js');
-```
+Lodash makes JavaScript easier by taking the hassle out of working with arrays,<br>
+numbers, objects, strings, etc. Lodash’s modular methods are great for:
 
-In an AMD loader:
+ * Iterating arrays, objects, & strings
+ * Manipulating & testing values
+ * Creating composite functions
 
-```js
-require({
-  'packages': [
-    { 'name': 'lodash', 'location': 'path/to/lodash', 'main': 'lodash' }
-  ]
-},
-['lodash'], function(_) {
-  console.log(_.VERSION);
-});
-```
+## Module Formats
 
-## Author
+Lodash is available in a [variety of builds](https://lodash.com/custom-builds) & module formats.
 
-| [![twitter/jdalton](http://gravatar.com/avatar/299a3d891ff1920b69c364d061007043?s=70)](http://twitter.com/jdalton "Follow @jdalton on Twitter") |
-|---|
-| [John-David Dalton](http://allyoucanleet.com/) |
+ * [lodash](https://www.npmjs.com/package/lodash) & [per method packages](https://www.npmjs.com/browse/keyword/lodash-modularized)
+ * [lodash-es](https://www.npmjs.com/package/lodash-es), [babel-plugin-lodash](https://www.npmjs.com/package/babel-plugin-lodash), & [lodash-webpack-plugin](https://www.npmjs.com/package/lodash-webpack-plugin)
+ * [lodash/fp](https://github.com/lodash/lodash/tree/npm/fp)
+ * [lodash-amd](https://www.npmjs.com/package/lodash-amd)
 
-## Contributors
 
-| [![twitter/blainebublitz](http://gravatar.com/avatar/ac1c67fd906c9fecd823ce302283b4c1?s=70)](http://twitter.com/blainebublitz "Follow @BlaineBublitz on Twitter") | [![twitter/kitcambridge](http://gravatar.com/avatar/6662a1d02f351b5ef2f8b4d815804661?s=70)](https://twitter.com/kitcambridge "Follow @kitcambridge on Twitter") | [![twitter/mathias](http://gravatar.com/avatar/24e08a9ea84deb17ae121074d0f17125?s=70)](http://twitter.com/mathias "Follow @mathias on Twitter") |
-|---|---|---|
-| [Blaine Bublitz](http://iceddev.com/) | [Kit Cambridge](http://kitcambridge.github.io/) | [Mathias Bynens](http://mathiasbynens.be/) |

SECURITY.md

@@ -0,0 +1,47 @@
+# Security Policy
+
+## Supported versions
+
+The following table describes the versions of this project that are currently
+supported with security updates:
+
+| Version | Supported          |
+| ------- | ------------------ |
+| 4.x   | :white_check_mark:   |
+| 3.x   | :x:                  |
+| 2.x   | :x:                  |
+| 1.x   | :x:                  |
+
+## Threat Model
+
+To better understand which classes of vulnerabilities are considered in-scope or out-of-scope for Lodash, please review the [Lodash Threat Model](./threat-model.md).
+
+The threat model defines Lodash’s trust boundaries and clarifies how security issues are assessed for triage and disclosure.
+
+## Responsible disclosure security policy
+
+A responsible disclosure policy helps protect users of the project from publicly
+disclosed security vulnerabilities without a fix by employing a process where
+vulnerabilities are first triaged in a private manner, and only publicly disclosed
+after a reasonable time period that allows patching the vulnerability and provides
+an upgrade path for users.
+
+We kindly ask you to refrain from malicious acts that put our users, the project,
+or any of the project’s team members at risk.
+
+## Reporting a security issue
+
+We consider the security of Lodash a top priority. But no matter how much effort
+we put into security, there can still be vulnerabilities present.
+
+If you discover a security vulnerability, please report the security issue
+directly to the Lodash maintainers through the [Security tab](https://github.com/lodash/lodash/security) of the Lodash
+repository.
+
+Your efforts to responsibly disclose your findings are sincerely appreciated.
+
+## Escalation
+
+If you do not receive an acknowledgement of your report within 6 business days, or if you cannot find a private security contact for the project, you may escalate to the OpenJS Foundation CNA at `security@lists.openjsf.org`.
+
+If the project acknowledges your report but does not provide any further response or engagement within 14 days, escalation is also appropriate.

bower.json

@@ -1,23 +0,0 @@
-{
-  "name": "lodash",
-  "version": "2.2.0",
-  "main": "dist/lodash.compat.js",
-  "ignore": [
-    ".*",
-    "*.custom.*",
-    "*.template.*",
-    "*.map",
-    "*.md",
-    "/*.min.*",
-    "/lodash.js",
-    "index.js",
-    "component.json",
-    "package.json",
-    "doc",
-    "modularize",
-    "node_modules",
-    "perf",
-    "test",
-    "vendor"
-  ]
-}

component.json

@@ -1,12 +0,0 @@
-{
-  "name": "lodash",
-  "repo": "lodash/lodash",
-  "version": "2.2.0",
-  "description": "A utility library delivering consistency, customization, performance, & extras.",
-  "license": "MIT",
-  "keywords": ["amd", "browser", "client", "customize", "functional", "performance", "server", "speed", "util"],
-  "scripts": [
-    "index.js",
-    "dist/lodash.compat.js"
-  ]
-}

dist/lodash.compat.min.js

@@ -1,56 +0,0 @@
-/**
- * @license
- * Lo-Dash 2.2.0 (Custom Build) lodash.com/license | Underscore.js 1.5.2 underscorejs.org/LICENSE
- * Build: `lodash -o ./dist/lodash.compat.js`
- */
-;(function(){function n(n,t,e){e=(e||0)-1;for(var r=n?n.length:0;++e<r;)if(n[e]===t)return e;return-1}function t(t,e){var r=typeof e;if(t=t.l,"boolean"==r||null==e)return t[e]?0:-1;"number"!=r&&"string"!=r&&(r="object");var u="number"==r?e:_+e;return t=(t=t[r])&&t[u],"object"==r?t&&-1<n(t,e)?0:-1:t?0:-1}function e(n){var t=this.l,e=typeof n;if("boolean"==e||null==n)t[n]=!0;else{"number"!=e&&"string"!=e&&(e="object");var r="number"==e?n:_+n,t=t[e]||(t[e]={});"object"==e?(t[r]||(t[r]=[])).push(n):t[r]=!0
-}}function r(n){return n.charCodeAt(0)}function u(n,t){var e=n.m,r=t.m;if(e!==r){if(e>r||typeof e=="undefined")return 1;if(e<r||typeof r=="undefined")return-1}return n.n-t.n}function o(n){var t=-1,r=n.length,u=n[0],o=n[0|r/2],a=n[r-1];if(u&&typeof u=="object"&&o&&typeof o=="object"&&a&&typeof a=="object")return!1;for(u=l(),u["false"]=u["null"]=u["true"]=u.undefined=!1,o=l(),o.k=n,o.l=u,o.push=e;++t<r;)o.push(n[t]);return o}function a(n){return"\\"+Z[n]}function i(){return y.pop()||[]}function l(){return m.pop()||{k:null,l:null,m:null,"false":!1,n:0,"null":!1,number:null,object:null,push:null,string:null,"true":!1,undefined:!1,o:null}
-}function f(n){return typeof n.toString!="function"&&typeof(n+"")=="string"}function c(){}function p(n){n.length=0,y.length<j&&y.push(n)}function s(n){var t=n.l;t&&s(t),n.k=n.l=n.m=n.object=n.number=n.string=n.o=null,m.length<j&&m.push(n)}function g(n,t,e){t||(t=0),typeof e=="undefined"&&(e=n?n.length:0);var r=-1;e=e-t||0;for(var u=Array(0>e?0:e);++r<e;)u[r]=n[t+r];return u}function h(e){function y(n){return n&&typeof n=="object"&&!Je(n)&&de.call(n,"__wrapped__")?n:new m(n)}function m(n,t){this.__chain__=!!t,this.__wrapped__=n
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dist/lodash.core.min.js

@@ -0,0 +1,29 @@
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+ * Lodash (Custom Build) lodash.com/license | Underscore.js 1.8.3 underscorejs.org/LICENSE
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dist/lodash.min.js

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 /**
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- * Lo-Dash 2.2.0 (Custom Build) lodash.com/license | Underscore.js 1.5.2 underscorejs.org/LICENSE
- * Build: `lodash modern -o ./dist/lodash.js`
+ * Lodash <https://lodash.com/>
+ * Copyright OpenJS Foundation and other contributors <https://openjsf.org/>
+ * Released under MIT license <https://lodash.com/license>
+ * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
+ * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
  */
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dist/mapping.fp.js

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+	if(typeof exports === 'object' && typeof module === 'object')
+		module.exports = factory();
+	else if(typeof define === 'function' && define.amd)
+		define([], factory);
+	else if(typeof exports === 'object')
+		exports["mapping"] = factory();
+	else
+		root["mapping"] = factory();
+})(this, function() {
+return /******/ (function(modules) { // webpackBootstrap
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+
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+
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+
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+
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+/******/ 	}
+
+
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+/******/ 	__webpack_require__.m = modules;
+
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+
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+/******/ 	return __webpack_require__(0);
+/******/ })
+/************************************************************************/
+/******/ ([
+/* 0 */
+/***/ (function(module, exports) {
+
+	/** Used to map aliases to their real names. */
+	exports.aliasToReal = {
+
+	  // Lodash aliases.
+	  'each': 'forEach',
+	  'eachRight': 'forEachRight',
+	  'entries': 'toPairs',
+	  'entriesIn': 'toPairsIn',
+	  'extend': 'assignIn',
+	  'extendAll': 'assignInAll',
+	  'extendAllWith': 'assignInAllWith',
+	  'extendWith': 'assignInWith',
+	  'first': 'head',
+
+	  // Methods that are curried variants of others.
+	  'conforms': 'conformsTo',
+	  'matches': 'isMatch',
+	  'property': 'get',
+
+	  // Ramda aliases.
+	  '__': 'placeholder',
+	  'F': 'stubFalse',
+	  'T': 'stubTrue',
+	  'all': 'every',
+	  'allPass': 'overEvery',
+	  'always': 'constant',
+	  'any': 'some',
+	  'anyPass': 'overSome',
+	  'apply': 'spread',
+	  'assoc': 'set',
+	  'assocPath': 'set',
+	  'complement': 'negate',
+	  'compose': 'flowRight',
+	  'contains': 'includes',
+	  'dissoc': 'unset',
+	  'dissocPath': 'unset',
+	  'dropLast': 'dropRight',
+	  'dropLastWhile': 'dropRightWhile',
+	  'equals': 'isEqual',
+	  'identical': 'eq',
+	  'indexBy': 'keyBy',
+	  'init': 'initial',
+	  'invertObj': 'invert',
+	  'juxt': 'over',
+	  'omitAll': 'omit',
+	  'nAry': 'ary',
+	  'path': 'get',
+	  'pathEq': 'matchesProperty',
+	  'pathOr': 'getOr',
+	  'paths': 'at',
+	  'pickAll': 'pick',
+	  'pipe': 'flow',
+	  'pluck': 'map',
+	  'prop': 'get',
+	  'propEq': 'matchesProperty',
+	  'propOr': 'getOr',
+	  'props': 'at',
+	  'symmetricDifference': 'xor',
+	  'symmetricDifferenceBy': 'xorBy',
+	  'symmetricDifferenceWith': 'xorWith',
+	  'takeLast': 'takeRight',
+	  'takeLastWhile': 'takeRightWhile',
+	  'unapply': 'rest',
+	  'unnest': 'flatten',
+	  'useWith': 'overArgs',
+	  'where': 'conformsTo',
+	  'whereEq': 'isMatch',
+	  'zipObj': 'zipObject'
+	};
+
+	/** Used to map ary to method names. */
+	exports.aryMethod = {
+	  '1': [
+	    'assignAll', 'assignInAll', 'attempt', 'castArray', 'ceil', 'create',
+	    'curry', 'curryRight', 'defaultsAll', 'defaultsDeepAll', 'floor', 'flow',
+	    'flowRight', 'fromPairs', 'invert', 'iteratee', 'memoize', 'method', 'mergeAll',
+	    'methodOf', 'mixin', 'nthArg', 'over', 'overEvery', 'overSome','rest', 'reverse',
+	    'round', 'runInContext', 'spread', 'template', 'trim', 'trimEnd', 'trimStart',
+	    'uniqueId', 'words', 'zipAll'
+	  ],
+	  '2': [
+	    'add', 'after', 'ary', 'assign', 'assignAllWith', 'assignIn', 'assignInAllWith',
+	    'at', 'before', 'bind', 'bindAll', 'bindKey', 'chunk', 'cloneDeepWith',
+	    'cloneWith', 'concat', 'conformsTo', 'countBy', 'curryN', 'curryRightN',
+	    'debounce', 'defaults', 'defaultsDeep', 'defaultTo', 'delay', 'difference',
+	    'divide', 'drop', 'dropRight', 'dropRightWhile', 'dropWhile', 'endsWith', 'eq',
+	    'every', 'filter', 'find', 'findIndex', 'findKey', 'findLast', 'findLastIndex',
+	    'findLastKey', 'flatMap', 'flatMapDeep', 'flattenDepth', 'forEach',
+	    'forEachRight', 'forIn', 'forInRight', 'forOwn', 'forOwnRight', 'get',
+	    'groupBy', 'gt', 'gte', 'has', 'hasIn', 'includes', 'indexOf', 'intersection',
+	    'invertBy', 'invoke', 'invokeMap', 'isEqual', 'isMatch', 'join', 'keyBy',
+	    'lastIndexOf', 'lt', 'lte', 'map', 'mapKeys', 'mapValues', 'matchesProperty',
+	    'maxBy', 'meanBy', 'merge', 'mergeAllWith', 'minBy', 'multiply', 'nth', 'omit',
+	    'omitBy', 'overArgs', 'pad', 'padEnd', 'padStart', 'parseInt', 'partial',
+	    'partialRight', 'partition', 'pick', 'pickBy', 'propertyOf', 'pull', 'pullAll',
+	    'pullAt', 'random', 'range', 'rangeRight', 'rearg', 'reject', 'remove',
+	    'repeat', 'restFrom', 'result', 'sampleSize', 'some', 'sortBy', 'sortedIndex',
+	    'sortedIndexOf', 'sortedLastIndex', 'sortedLastIndexOf', 'sortedUniqBy',
+	    'split', 'spreadFrom', 'startsWith', 'subtract', 'sumBy', 'take', 'takeRight',
+	    'takeRightWhile', 'takeWhile', 'tap', 'throttle', 'thru', 'times', 'trimChars',
+	    'trimCharsEnd', 'trimCharsStart', 'truncate', 'union', 'uniqBy', 'uniqWith',
+	    'unset', 'unzipWith', 'without', 'wrap', 'xor', 'zip', 'zipObject',
+	    'zipObjectDeep'
+	  ],
+	  '3': [
+	    'assignInWith', 'assignWith', 'clamp', 'differenceBy', 'differenceWith',
+	    'findFrom', 'findIndexFrom', 'findLastFrom', 'findLastIndexFrom', 'getOr',
+	    'includesFrom', 'indexOfFrom', 'inRange', 'intersectionBy', 'intersectionWith',
+	    'invokeArgs', 'invokeArgsMap', 'isEqualWith', 'isMatchWith', 'flatMapDepth',
+	    'lastIndexOfFrom', 'mergeWith', 'orderBy', 'padChars', 'padCharsEnd',
+	    'padCharsStart', 'pullAllBy', 'pullAllWith', 'rangeStep', 'rangeStepRight',
+	    'reduce', 'reduceRight', 'replace', 'set', 'slice', 'sortedIndexBy',
+	    'sortedLastIndexBy', 'transform', 'unionBy', 'unionWith', 'update', 'xorBy',
+	    'xorWith', 'zipWith'
+	  ],
+	  '4': [
+	    'fill', 'setWith', 'updateWith'
+	  ]
+	};
+
+	/** Used to map ary to rearg configs. */
+	exports.aryRearg = {
+	  '2': [1, 0],
+	  '3': [2, 0, 1],
+	  '4': [3, 2, 0, 1]
+	};
+
+	/** Used to map method names to their iteratee ary. */
+	exports.iterateeAry = {
+	  'dropRightWhile': 1,
+	  'dropWhile': 1,
+	  'every': 1,
+	  'filter': 1,
+	  'find': 1,
+	  'findFrom': 1,
+	  'findIndex': 1,
+	  'findIndexFrom': 1,
+	  'findKey': 1,
+	  'findLast': 1,
+	  'findLastFrom': 1,
+	  'findLastIndex': 1,
+	  'findLastIndexFrom': 1,
+	  'findLastKey': 1,
+	  'flatMap': 1,
+	  'flatMapDeep': 1,
+	  'flatMapDepth': 1,
+	  'forEach': 1,
+	  'forEachRight': 1,
+	  'forIn': 1,
+	  'forInRight': 1,
+	  'forOwn': 1,
+	  'forOwnRight': 1,
+	  'map': 1,
+	  'mapKeys': 1,
+	  'mapValues': 1,
+	  'partition': 1,
+	  'reduce': 2,
+	  'reduceRight': 2,
+	  'reject': 1,
+	  'remove': 1,
+	  'some': 1,
+	  'takeRightWhile': 1,
+	  'takeWhile': 1,
+	  'times': 1,
+	  'transform': 2
+	};
+
+	/** Used to map method names to iteratee rearg configs. */
+	exports.iterateeRearg = {
+	  'mapKeys': [1],
+	  'reduceRight': [1, 0]
+	};
+
+	/** Used to map method names to rearg configs. */
+	exports.methodRearg = {
+	  'assignInAllWith': [1, 0],
+	  'assignInWith': [1, 2, 0],
+	  'assignAllWith': [1, 0],
+	  'assignWith': [1, 2, 0],
+	  'differenceBy': [1, 2, 0],
+	  'differenceWith': [1, 2, 0],
+	  'getOr': [2, 1, 0],
+	  'intersectionBy': [1, 2, 0],
+	  'intersectionWith': [1, 2, 0],
+	  'isEqualWith': [1, 2, 0],
+	  'isMatchWith': [2, 1, 0],
+	  'mergeAllWith': [1, 0],
+	  'mergeWith': [1, 2, 0],
+	  'padChars': [2, 1, 0],
+	  'padCharsEnd': [2, 1, 0],
+	  'padCharsStart': [2, 1, 0],
+	  'pullAllBy': [2, 1, 0],
+	  'pullAllWith': [2, 1, 0],
+	  'rangeStep': [1, 2, 0],
+	  'rangeStepRight': [1, 2, 0],
+	  'setWith': [3, 1, 2, 0],
+	  'sortedIndexBy': [2, 1, 0],
+	  'sortedLastIndexBy': [2, 1, 0],
+	  'unionBy': [1, 2, 0],
+	  'unionWith': [1, 2, 0],
+	  'updateWith': [3, 1, 2, 0],
+	  'xorBy': [1, 2, 0],
+	  'xorWith': [1, 2, 0],
+	  'zipWith': [1, 2, 0]
+	};
+
+	/** Used to map method names to spread configs. */
+	exports.methodSpread = {
+	  'assignAll': { 'start': 0 },
+	  'assignAllWith': { 'start': 0 },
+	  'assignInAll': { 'start': 0 },
+	  'assignInAllWith': { 'start': 0 },
+	  'defaultsAll': { 'start': 0 },
+	  'defaultsDeepAll': { 'start': 0 },
+	  'invokeArgs': { 'start': 2 },
+	  'invokeArgsMap': { 'start': 2 },
+	  'mergeAll': { 'start': 0 },
+	  'mergeAllWith': { 'start': 0 },
+	  'partial': { 'start': 1 },
+	  'partialRight': { 'start': 1 },
+	  'without': { 'start': 1 },
+	  'zipAll': { 'start': 0 }
+	};
+
+	/** Used to identify methods which mutate arrays or objects. */
+	exports.mutate = {
+	  'array': {
+	    'fill': true,
+	    'pull': true,
+	    'pullAll': true,
+	    'pullAllBy': true,
+	    'pullAllWith': true,
+	    'pullAt': true,
+	    'remove': true,
+	    'reverse': true
+	  },
+	  'object': {
+	    'assign': true,
+	    'assignAll': true,
+	    'assignAllWith': true,
+	    'assignIn': true,
+	    'assignInAll': true,
+	    'assignInAllWith': true,
+	    'assignInWith': true,
+	    'assignWith': true,
+	    'defaults': true,
+	    'defaultsAll': true,
+	    'defaultsDeep': true,
+	    'defaultsDeepAll': true,
+	    'merge': true,
+	    'mergeAll': true,
+	    'mergeAllWith': true,
+	    'mergeWith': true,
+	  },
+	  'set': {
+	    'set': true,
+	    'setWith': true,
+	    'unset': true,
+	    'update': true,
+	    'updateWith': true
+	  }
+	};
+
+	/** Used to map real names to their aliases. */
+	exports.realToAlias = (function() {
+	  var hasOwnProperty = Object.prototype.hasOwnProperty,
+	      object = exports.aliasToReal,
+	      result = {};
+
+	  for (var key in object) {
+	    var value = object[key];
+	    if (hasOwnProperty.call(result, value)) {
+	      result[value].push(key);
+	    } else {
+	      result[value] = [key];
+	    }
+	  }
+	  return result;
+	}());
+
+	/** Used to map method names to other names. */
+	exports.remap = {
+	  'assignAll': 'assign',
+	  'assignAllWith': 'assignWith',
+	  'assignInAll': 'assignIn',
+	  'assignInAllWith': 'assignInWith',
+	  'curryN': 'curry',
+	  'curryRightN': 'curryRight',
+	  'defaultsAll': 'defaults',
+	  'defaultsDeepAll': 'defaultsDeep',
+	  'findFrom': 'find',
+	  'findIndexFrom': 'findIndex',
+	  'findLastFrom': 'findLast',
+	  'findLastIndexFrom': 'findLastIndex',
+	  'getOr': 'get',
+	  'includesFrom': 'includes',
+	  'indexOfFrom': 'indexOf',
+	  'invokeArgs': 'invoke',
+	  'invokeArgsMap': 'invokeMap',
+	  'lastIndexOfFrom': 'lastIndexOf',
+	  'mergeAll': 'merge',
+	  'mergeAllWith': 'mergeWith',
+	  'padChars': 'pad',
+	  'padCharsEnd': 'padEnd',
+	  'padCharsStart': 'padStart',
+	  'propertyOf': 'get',
+	  'rangeStep': 'range',
+	  'rangeStepRight': 'rangeRight',
+	  'restFrom': 'rest',
+	  'spreadFrom': 'spread',
+	  'trimChars': 'trim',
+	  'trimCharsEnd': 'trimEnd',
+	  'trimCharsStart': 'trimStart',
+	  'zipAll': 'zip'
+	};
+
+	/** Used to track methods that skip fixing their arity. */
+	exports.skipFixed = {
+	  'castArray': true,
+	  'flow': true,
+	  'flowRight': true,
+	  'iteratee': true,
+	  'mixin': true,
+	  'rearg': true,
+	  'runInContext': true
+	};
+
+	/** Used to track methods that skip rearranging arguments. */
+	exports.skipRearg = {
+	  'add': true,
+	  'assign': true,
+	  'assignIn': true,
+	  'bind': true,
+	  'bindKey': true,
+	  'concat': true,
+	  'difference': true,
+	  'divide': true,
+	  'eq': true,
+	  'gt': true,
+	  'gte': true,
+	  'isEqual': true,
+	  'lt': true,
+	  'lte': true,
+	  'matchesProperty': true,
+	  'merge': true,
+	  'multiply': true,
+	  'overArgs': true,
+	  'partial': true,
+	  'partialRight': true,
+	  'propertyOf': true,
+	  'random': true,
+	  'range': true,
+	  'rangeRight': true,
+	  'subtract': true,
+	  'zip': true,
+	  'zipObject': true,
+	  'zipObjectDeep': true
+	};
+
+
+/***/ })
+/******/ ])
+});
+;

doc/parse.php

@@ -1,36 +0,0 @@
-<?php
-
-  // cleanup requested filepath
-  $file = isset($_GET['f']) ? $_GET['f'] : 'lodash';
-  $file = preg_replace('#(\.*[\/])+#', '', $file);
-  $file .= preg_match('/\.[a-z]+$/', $file) ? '' : '.js';
-
-  // output filename
-  if (isset($_GET['o'])) {
-    $output = $_GET['o'];
-  } else if (isset($_SERVER['argv'][1])) {
-    $output = $_SERVER['argv'][1];
-  } else {
-    $output = basename($file);
-  }
-
-  /*--------------------------------------------------------------------------*/
-
-  require('../vendor/docdown/docdown.php');
-
-  // generate Markdown
-  $markdown = docdown(array(
-    'path'  => '../' . $file,
-    'title' => 'Lo-Dash <span>v2.2.0</span>',
-    'toc'   => 'categories',
-    'url'   => 'https://github.com/lodash/lodash/blob/master/lodash.js'
-  ));
-
-  // save to a .md file
-  file_put_contents($output . '.md', $markdown);
-
-  // print
-  header('Content-Type: text/plain;charset=utf-8');
-  echo $markdown . PHP_EOL;
-
-?>

fp/_baseConvert.js

@@ -0,0 +1,569 @@
+var mapping = require('./_mapping'),
+    fallbackHolder = require('./placeholder');
+
+/** Built-in value reference. */
+var push = Array.prototype.push;
+
+/**
+ * Creates a function, with an arity of `n`, that invokes `func` with the
+ * arguments it receives.
+ *
+ * @private
+ * @param {Function} func The function to wrap.
+ * @param {number} n The arity of the new function.
+ * @returns {Function} Returns the new function.
+ */
+function baseArity(func, n) {
+  return n == 2
+    ? function(a, b) { return func.apply(undefined, arguments); }
+    : function(a) { return func.apply(undefined, arguments); };
+}
+
+/**
+ * Creates a function that invokes `func`, with up to `n` arguments, ignoring
+ * any additional arguments.
+ *
+ * @private
+ * @param {Function} func The function to cap arguments for.
+ * @param {number} n The arity cap.
+ * @returns {Function} Returns the new function.
+ */
+function baseAry(func, n) {
+  return n == 2
+    ? function(a, b) { return func(a, b); }
+    : function(a) { return func(a); };
+}
+
+/**
+ * Creates a clone of `array`.
+ *
+ * @private
+ * @param {Array} array The array to clone.
+ * @returns {Array} Returns the cloned array.
+ */
+function cloneArray(array) {
+  var length = array ? array.length : 0,
+      result = Array(length);
+
+  while (length--) {
+    result[length] = array[length];
+  }
+  return result;
+}
+
+/**
+ * Creates a function that clones a given object using the assignment `func`.
+ *
+ * @private
+ * @param {Function} func The assignment function.
+ * @returns {Function} Returns the new cloner function.
+ */
+function createCloner(func) {
+  return function(object) {
+    return func({}, object);
+  };
+}
+
+/**
+ * A specialized version of `_.spread` which flattens the spread array into
+ * the arguments of the invoked `func`.
+ *
+ * @private
+ * @param {Function} func The function to spread arguments over.
+ * @param {number} start The start position of the spread.
+ * @returns {Function} Returns the new function.
+ */
+function flatSpread(func, start) {
+  return function() {
+    var length = arguments.length,
+        lastIndex = length - 1,
+        args = Array(length);
+
+    while (length--) {
+      args[length] = arguments[length];
+    }
+    var array = args[start],
+        otherArgs = args.slice(0, start);
+
+    if (array) {
+      push.apply(otherArgs, array);
+    }
+    if (start != lastIndex) {
+      push.apply(otherArgs, args.slice(start + 1));
+    }
+    return func.apply(this, otherArgs);
+  };
+}
+
+/**
+ * Creates a function that wraps `func` and uses `cloner` to clone the first
+ * argument it receives.
+ *
+ * @private
+ * @param {Function} func The function to wrap.
+ * @param {Function} cloner The function to clone arguments.
+ * @returns {Function} Returns the new immutable function.
+ */
+function wrapImmutable(func, cloner) {
+  return function() {
+    var length = arguments.length;
+    if (!length) {
+      return;
+    }
+    var args = Array(length);
+    while (length--) {
+      args[length] = arguments[length];
+    }
+    var result = args[0] = cloner.apply(undefined, args);
+    func.apply(undefined, args);
+    return result;
+  };
+}
+
+/**
+ * The base implementation of `convert` which accepts a `util` object of methods
+ * required to perform conversions.
+ *
+ * @param {Object} util The util object.
+ * @param {string} name The name of the function to convert.
+ * @param {Function} func The function to convert.
+ * @param {Object} [options] The options object.
+ * @param {boolean} [options.cap=true] Specify capping iteratee arguments.
+ * @param {boolean} [options.curry=true] Specify currying.
+ * @param {boolean} [options.fixed=true] Specify fixed arity.
+ * @param {boolean} [options.immutable=true] Specify immutable operations.
+ * @param {boolean} [options.rearg=true] Specify rearranging arguments.
+ * @returns {Function|Object} Returns the converted function or object.
+ */
+function baseConvert(util, name, func, options) {
+  var isLib = typeof name == 'function',
+      isObj = name === Object(name);
+
+  if (isObj) {
+    options = func;
+    func = name;
+    name = undefined;
+  }
+  if (func == null) {
+    throw new TypeError;
+  }
+  options || (options = {});
+
+  var config = {
+    'cap': 'cap' in options ? options.cap : true,
+    'curry': 'curry' in options ? options.curry : true,
+    'fixed': 'fixed' in options ? options.fixed : true,
+    'immutable': 'immutable' in options ? options.immutable : true,
+    'rearg': 'rearg' in options ? options.rearg : true
+  };
+
+  var defaultHolder = isLib ? func : fallbackHolder,
+      forceCurry = ('curry' in options) && options.curry,
+      forceFixed = ('fixed' in options) && options.fixed,
+      forceRearg = ('rearg' in options) && options.rearg,
+      pristine = isLib ? func.runInContext() : undefined;
+
+  var helpers = isLib ? func : {
+    'ary': util.ary,
+    'assign': util.assign,
+    'clone': util.clone,
+    'curry': util.curry,
+    'forEach': util.forEach,
+    'isArray': util.isArray,
+    'isError': util.isError,
+    'isFunction': util.isFunction,
+    'isWeakMap': util.isWeakMap,
+    'iteratee': util.iteratee,
+    'keys': util.keys,
+    'rearg': util.rearg,
+    'toInteger': util.toInteger,
+    'toPath': util.toPath
+  };
+
+  var ary = helpers.ary,
+      assign = helpers.assign,
+      clone = helpers.clone,
+      curry = helpers.curry,
+      each = helpers.forEach,
+      isArray = helpers.isArray,
+      isError = helpers.isError,
+      isFunction = helpers.isFunction,
+      isWeakMap = helpers.isWeakMap,
+      keys = helpers.keys,
+      rearg = helpers.rearg,
+      toInteger = helpers.toInteger,
+      toPath = helpers.toPath;
+
+  var aryMethodKeys = keys(mapping.aryMethod);
+
+  var wrappers = {
+    'castArray': function(castArray) {
+      return function() {
+        var value = arguments[0];
+        return isArray(value)
+          ? castArray(cloneArray(value))
+          : castArray.apply(undefined, arguments);
+      };
+    },
+    'iteratee': function(iteratee) {
+      return function() {
+        var func = arguments[0],
+            arity = arguments[1],
+            result = iteratee(func, arity),
+            length = result.length;
+
+        if (config.cap && typeof arity == 'number') {
+          arity = arity > 2 ? (arity - 2) : 1;
+          return (length && length <= arity) ? result : baseAry(result, arity);
+        }
+        return result;
+      };
+    },
+    'mixin': function(mixin) {
+      return function(source) {
+        var func = this;
+        if (!isFunction(func)) {
+          return mixin(func, Object(source));
+        }
+        var pairs = [];
+        each(keys(source), function(key) {
+          if (isFunction(source[key])) {
+            pairs.push([key, func.prototype[key]]);
+          }
+        });
+
+        mixin(func, Object(source));
+
+        each(pairs, function(pair) {
+          var value = pair[1];
+          if (isFunction(value)) {
+            func.prototype[pair[0]] = value;
+          } else {
+            delete func.prototype[pair[0]];
+          }
+        });
+        return func;
+      };
+    },
+    'nthArg': function(nthArg) {
+      return function(n) {
+        var arity = n < 0 ? 1 : (toInteger(n) + 1);
+        return curry(nthArg(n), arity);
+      };
+    },
+    'rearg': function(rearg) {
+      return function(func, indexes) {
+        var arity = indexes ? indexes.length : 0;
+        return curry(rearg(func, indexes), arity);
+      };
+    },
+    'runInContext': function(runInContext) {
+      return function(context) {
+        return baseConvert(util, runInContext(context), options);
+      };
+    }
+  };
+
+  /*--------------------------------------------------------------------------*/
+
+  /**
+   * Casts `func` to a function with an arity capped iteratee if needed.
+   *
+   * @private
+   * @param {string} name The name of the function to inspect.
+   * @param {Function} func The function to inspect.
+   * @returns {Function} Returns the cast function.
+   */
+  function castCap(name, func) {
+    if (config.cap) {
+      var indexes = mapping.iterateeRearg[name];
+      if (indexes) {
+        return iterateeRearg(func, indexes);
+      }
+      var n = !isLib && mapping.iterateeAry[name];
+      if (n) {
+        return iterateeAry(func, n);
+      }
+    }
+    return func;
+  }
+
+  /**
+   * Casts `func` to a curried function if needed.
+   *
+   * @private
+   * @param {string} name The name of the function to inspect.
+   * @param {Function} func The function to inspect.
+   * @param {number} n The arity of `func`.
+   * @returns {Function} Returns the cast function.
+   */
+  function castCurry(name, func, n) {
+    return (forceCurry || (config.curry && n > 1))
+      ? curry(func, n)
+      : func;
+  }
+
+  /**
+   * Casts `func` to a fixed arity function if needed.
+   *
+   * @private
+   * @param {string} name The name of the function to inspect.
+   * @param {Function} func The function to inspect.
+   * @param {number} n The arity cap.
+   * @returns {Function} Returns the cast function.
+   */
+  function castFixed(name, func, n) {
+    if (config.fixed && (forceFixed || !mapping.skipFixed[name])) {
+      var data = mapping.methodSpread[name],
+          start = data && data.start;
+
+      return start  === undefined ? ary(func, n) : flatSpread(func, start);
+    }
+    return func;
+  }
+
+  /**
+   * Casts `func` to an rearged function if needed.
+   *
+   * @private
+   * @param {string} name The name of the function to inspect.
+   * @param {Function} func The function to inspect.
+   * @param {number} n The arity of `func`.
+   * @returns {Function} Returns the cast function.
+   */
+  function castRearg(name, func, n) {
+    return (config.rearg && n > 1 && (forceRearg || !mapping.skipRearg[name]))
+      ? rearg(func, mapping.methodRearg[name] || mapping.aryRearg[n])
+      : func;
+  }
+
+  /**
+   * Creates a clone of `object` by `path`.
+   *
+   * @private
+   * @param {Object} object The object to clone.
+   * @param {Array|string} path The path to clone by.
+   * @returns {Object} Returns the cloned object.
+   */
+  function cloneByPath(object, path) {
+    path = toPath(path);
+
+    var index = -1,
+        length = path.length,
+        lastIndex = length - 1,
+        result = clone(Object(object)),
+        nested = result;
+
+    while (nested != null && ++index < length) {
+      var key = path[index],
+          value = nested[key];
+
+      if (value != null &&
+          !(isFunction(value) || isError(value) || isWeakMap(value))) {
+        nested[key] = clone(index == lastIndex ? value : Object(value));
+      }
+      nested = nested[key];
+    }
+    return result;
+  }
+
+  /**
+   * Converts `lodash` to an immutable auto-curried iteratee-first data-last
+   * version with conversion `options` applied.
+   *
+   * @param {Object} [options] The options object. See `baseConvert` for more details.
+   * @returns {Function} Returns the converted `lodash`.
+   */
+  function convertLib(options) {
+    return _.runInContext.convert(options)(undefined);
+  }
+
+  /**
+   * Create a converter function for `func` of `name`.
+   *
+   * @param {string} name The name of the function to convert.
+   * @param {Function} func The function to convert.
+   * @returns {Function} Returns the new converter function.
+   */
+  function createConverter(name, func) {
+    var realName = mapping.aliasToReal[name] || name,
+        methodName = mapping.remap[realName] || realName,
+        oldOptions = options;
+
+    return function(options) {
+      var newUtil = isLib ? pristine : helpers,
+          newFunc = isLib ? pristine[methodName] : func,
+          newOptions = assign(assign({}, oldOptions), options);
+
+      return baseConvert(newUtil, realName, newFunc, newOptions);
+    };
+  }
+
+  /**
+   * Creates a function that wraps `func` to invoke its iteratee, with up to `n`
+   * arguments, ignoring any additional arguments.
+   *
+   * @private
+   * @param {Function} func The function to cap iteratee arguments for.
+   * @param {number} n The arity cap.
+   * @returns {Function} Returns the new function.
+   */
+  function iterateeAry(func, n) {
+    return overArg(func, function(func) {
+      return typeof func == 'function' ? baseAry(func, n) : func;
+    });
+  }
+
+  /**
+   * Creates a function that wraps `func` to invoke its iteratee with arguments
+   * arranged according to the specified `indexes` where the argument value at
+   * the first index is provided as the first argument, the argument value at
+   * the second index is provided as the second argument, and so on.
+   *
+   * @private
+   * @param {Function} func The function to rearrange iteratee arguments for.
+   * @param {number[]} indexes The arranged argument indexes.
+   * @returns {Function} Returns the new function.
+   */
+  function iterateeRearg(func, indexes) {
+    return overArg(func, function(func) {
+      var n = indexes.length;
+      return baseArity(rearg(baseAry(func, n), indexes), n);
+    });
+  }
+
+  /**
+   * Creates a function that invokes `func` with its first argument transformed.
+   *
+   * @private
+   * @param {Function} func The function to wrap.
+   * @param {Function} transform The argument transform.
+   * @returns {Function} Returns the new function.
+   */
+  function overArg(func, transform) {
+    return function() {
+      var length = arguments.length;
+      if (!length) {
+        return func();
+      }
+      var args = Array(length);
+      while (length--) {
+        args[length] = arguments[length];
+      }
+      var index = config.rearg ? 0 : (length - 1);
+      args[index] = transform(args[index]);
+      return func.apply(undefined, args);
+    };
+  }
+
+  /**
+   * Creates a function that wraps `func` and applys the conversions
+   * rules by `name`.
+   *
+   * @private
+   * @param {string} name The name of the function to wrap.
+   * @param {Function} func The function to wrap.
+   * @returns {Function} Returns the converted function.
+   */
+  function wrap(name, func, placeholder) {
+    var result,
+        realName = mapping.aliasToReal[name] || name,
+        wrapped = func,
+        wrapper = wrappers[realName];
+
+    if (wrapper) {
+      wrapped = wrapper(func);
+    }
+    else if (config.immutable) {
+      if (mapping.mutate.array[realName]) {
+        wrapped = wrapImmutable(func, cloneArray);
+      }
+      else if (mapping.mutate.object[realName]) {
+        wrapped = wrapImmutable(func, createCloner(func));
+      }
+      else if (mapping.mutate.set[realName]) {
+        wrapped = wrapImmutable(func, cloneByPath);
+      }
+    }
+    each(aryMethodKeys, function(aryKey) {
+      each(mapping.aryMethod[aryKey], function(otherName) {
+        if (realName == otherName) {
+          var data = mapping.methodSpread[realName],
+              afterRearg = data && data.afterRearg;
+
+          result = afterRearg
+            ? castFixed(realName, castRearg(realName, wrapped, aryKey), aryKey)
+            : castRearg(realName, castFixed(realName, wrapped, aryKey), aryKey);
+
+          result = castCap(realName, result);
+          result = castCurry(realName, result, aryKey);
+          return false;
+        }
+      });
+      return !result;
+    });
+
+    result || (result = wrapped);
+    if (result == func) {
+      result = forceCurry ? curry(result, 1) : function() {
+        return func.apply(this, arguments);
+      };
+    }
+    result.convert = createConverter(realName, func);
+    result.placeholder = func.placeholder = placeholder;
+
+    return result;
+  }
+
+  /*--------------------------------------------------------------------------*/
+
+  if (!isObj) {
+    return wrap(name, func, defaultHolder);
+  }
+  var _ = func;
+
+  // Convert methods by ary cap.
+  var pairs = [];
+  each(aryMethodKeys, function(aryKey) {
+    each(mapping.aryMethod[aryKey], function(key) {
+      var func = _[mapping.remap[key] || key];
+      if (func) {
+        pairs.push([key, wrap(key, func, _)]);
+      }
+    });
+  });
+
+  // Convert remaining methods.
+  each(keys(_), function(key) {
+    var func = _[key];
+    if (typeof func == 'function') {
+      var length = pairs.length;
+      while (length--) {
+        if (pairs[length][0] == key) {
+          return;
+        }
+      }
+      func.convert = createConverter(key, func);
+      pairs.push([key, func]);
+    }
+  });
+
+  // Assign to `_` leaving `_.prototype` unchanged to allow chaining.
+  each(pairs, function(pair) {
+    _[pair[0]] = pair[1];
+  });
+
+  _.convert = convertLib;
+  _.placeholder = _;
+
+  // Assign aliases.
+  each(keys(_), function(key) {
+    each(mapping.realToAlias[key] || [], function(alias) {
+      _[alias] = _[key];
+    });
+  });
+
+  return _;
+}
+
+module.exports = baseConvert;

fp/_convertBrowser.js

@@ -0,0 +1,18 @@
+var baseConvert = require('./_baseConvert');
+
+/**
+ * Converts `lodash` to an immutable auto-curried iteratee-first data-last
+ * version with conversion `options` applied.
+ *
+ * @param {Function} lodash The lodash function to convert.
+ * @param {Object} [options] The options object. See `baseConvert` for more details.
+ * @returns {Function} Returns the converted `lodash`.
+ */
+function browserConvert(lodash, options) {
+  return baseConvert(lodash, lodash, options);
+}
+
+if (typeof _ == 'function' && typeof _.runInContext == 'function') {
+  _ = browserConvert(_.runInContext());
+}
+module.exports = browserConvert;

fp/_mapping.js

@@ -0,0 +1,358 @@
+/** Used to map aliases to their real names. */
+exports.aliasToReal = {
+
+  // Lodash aliases.
+  'each': 'forEach',
+  'eachRight': 'forEachRight',
+  'entries': 'toPairs',
+  'entriesIn': 'toPairsIn',
+  'extend': 'assignIn',
+  'extendAll': 'assignInAll',
+  'extendAllWith': 'assignInAllWith',
+  'extendWith': 'assignInWith',
+  'first': 'head',
+
+  // Methods that are curried variants of others.
+  'conforms': 'conformsTo',
+  'matches': 'isMatch',
+  'property': 'get',
+
+  // Ramda aliases.
+  '__': 'placeholder',
+  'F': 'stubFalse',
+  'T': 'stubTrue',
+  'all': 'every',
+  'allPass': 'overEvery',
+  'always': 'constant',
+  'any': 'some',
+  'anyPass': 'overSome',
+  'apply': 'spread',
+  'assoc': 'set',
+  'assocPath': 'set',
+  'complement': 'negate',
+  'compose': 'flowRight',
+  'contains': 'includes',
+  'dissoc': 'unset',
+  'dissocPath': 'unset',
+  'dropLast': 'dropRight',
+  'dropLastWhile': 'dropRightWhile',
+  'equals': 'isEqual',
+  'identical': 'eq',
+  'indexBy': 'keyBy',
+  'init': 'initial',
+  'invertObj': 'invert',
+  'juxt': 'over',
+  'omitAll': 'omit',
+  'nAry': 'ary',
+  'path': 'get',
+  'pathEq': 'matchesProperty',
+  'pathOr': 'getOr',
+  'paths': 'at',
+  'pickAll': 'pick',
+  'pipe': 'flow',
+  'pluck': 'map',
+  'prop': 'get',
+  'propEq': 'matchesProperty',
+  'propOr': 'getOr',
+  'props': 'at',
+  'symmetricDifference': 'xor',
+  'symmetricDifferenceBy': 'xorBy',
+  'symmetricDifferenceWith': 'xorWith',
+  'takeLast': 'takeRight',
+  'takeLastWhile': 'takeRightWhile',
+  'unapply': 'rest',
+  'unnest': 'flatten',
+  'useWith': 'overArgs',
+  'where': 'conformsTo',
+  'whereEq': 'isMatch',
+  'zipObj': 'zipObject'
+};
+
+/** Used to map ary to method names. */
+exports.aryMethod = {
+  '1': [
+    'assignAll', 'assignInAll', 'attempt', 'castArray', 'ceil', 'create',
+    'curry', 'curryRight', 'defaultsAll', 'defaultsDeepAll', 'floor', 'flow',
+    'flowRight', 'fromPairs', 'invert', 'iteratee', 'memoize', 'method', 'mergeAll',
+    'methodOf', 'mixin', 'nthArg', 'over', 'overEvery', 'overSome','rest', 'reverse',
+    'round', 'runInContext', 'spread', 'template', 'trim', 'trimEnd', 'trimStart',
+    'uniqueId', 'words', 'zipAll'
+  ],
+  '2': [
+    'add', 'after', 'ary', 'assign', 'assignAllWith', 'assignIn', 'assignInAllWith',
+    'at', 'before', 'bind', 'bindAll', 'bindKey', 'chunk', 'cloneDeepWith',
+    'cloneWith', 'concat', 'conformsTo', 'countBy', 'curryN', 'curryRightN',
+    'debounce', 'defaults', 'defaultsDeep', 'defaultTo', 'delay', 'difference',
+    'divide', 'drop', 'dropRight', 'dropRightWhile', 'dropWhile', 'endsWith', 'eq',
+    'every', 'filter', 'find', 'findIndex', 'findKey', 'findLast', 'findLastIndex',
+    'findLastKey', 'flatMap', 'flatMapDeep', 'flattenDepth', 'forEach',
+    'forEachRight', 'forIn', 'forInRight', 'forOwn', 'forOwnRight', 'get',
+    'groupBy', 'gt', 'gte', 'has', 'hasIn', 'includes', 'indexOf', 'intersection',
+    'invertBy', 'invoke', 'invokeMap', 'isEqual', 'isMatch', 'join', 'keyBy',
+    'lastIndexOf', 'lt', 'lte', 'map', 'mapKeys', 'mapValues', 'matchesProperty',
+    'maxBy', 'meanBy', 'merge', 'mergeAllWith', 'minBy', 'multiply', 'nth', 'omit',
+    'omitBy', 'overArgs', 'pad', 'padEnd', 'padStart', 'parseInt', 'partial',
+    'partialRight', 'partition', 'pick', 'pickBy', 'propertyOf', 'pull', 'pullAll',
+    'pullAt', 'random', 'range', 'rangeRight', 'rearg', 'reject', 'remove',
+    'repeat', 'restFrom', 'result', 'sampleSize', 'some', 'sortBy', 'sortedIndex',
+    'sortedIndexOf', 'sortedLastIndex', 'sortedLastIndexOf', 'sortedUniqBy',
+    'split', 'spreadFrom', 'startsWith', 'subtract', 'sumBy', 'take', 'takeRight',
+    'takeRightWhile', 'takeWhile', 'tap', 'throttle', 'thru', 'times', 'trimChars',
+    'trimCharsEnd', 'trimCharsStart', 'truncate', 'union', 'uniqBy', 'uniqWith',
+    'unset', 'unzipWith', 'without', 'wrap', 'xor', 'zip', 'zipObject',
+    'zipObjectDeep'
+  ],
+  '3': [
+    'assignInWith', 'assignWith', 'clamp', 'differenceBy', 'differenceWith',
+    'findFrom', 'findIndexFrom', 'findLastFrom', 'findLastIndexFrom', 'getOr',
+    'includesFrom', 'indexOfFrom', 'inRange', 'intersectionBy', 'intersectionWith',
+    'invokeArgs', 'invokeArgsMap', 'isEqualWith', 'isMatchWith', 'flatMapDepth',
+    'lastIndexOfFrom', 'mergeWith', 'orderBy', 'padChars', 'padCharsEnd',
+    'padCharsStart', 'pullAllBy', 'pullAllWith', 'rangeStep', 'rangeStepRight',
+    'reduce', 'reduceRight', 'replace', 'set', 'slice', 'sortedIndexBy',
+    'sortedLastIndexBy', 'transform', 'unionBy', 'unionWith', 'update', 'xorBy',
+    'xorWith', 'zipWith'
+  ],
+  '4': [
+    'fill', 'setWith', 'updateWith'
+  ]
+};
+
+/** Used to map ary to rearg configs. */
+exports.aryRearg = {
+  '2': [1, 0],
+  '3': [2, 0, 1],
+  '4': [3, 2, 0, 1]
+};
+
+/** Used to map method names to their iteratee ary. */
+exports.iterateeAry = {
+  'dropRightWhile': 1,
+  'dropWhile': 1,
+  'every': 1,
+  'filter': 1,
+  'find': 1,
+  'findFrom': 1,
+  'findIndex': 1,
+  'findIndexFrom': 1,
+  'findKey': 1,
+  'findLast': 1,
+  'findLastFrom': 1,
+  'findLastIndex': 1,
+  'findLastIndexFrom': 1,
+  'findLastKey': 1,
+  'flatMap': 1,
+  'flatMapDeep': 1,
+  'flatMapDepth': 1,
+  'forEach': 1,
+  'forEachRight': 1,
+  'forIn': 1,
+  'forInRight': 1,
+  'forOwn': 1,
+  'forOwnRight': 1,
+  'map': 1,
+  'mapKeys': 1,
+  'mapValues': 1,
+  'partition': 1,
+  'reduce': 2,
+  'reduceRight': 2,
+  'reject': 1,
+  'remove': 1,
+  'some': 1,
+  'takeRightWhile': 1,
+  'takeWhile': 1,
+  'times': 1,
+  'transform': 2
+};
+
+/** Used to map method names to iteratee rearg configs. */
+exports.iterateeRearg = {
+  'mapKeys': [1],
+  'reduceRight': [1, 0]
+};
+
+/** Used to map method names to rearg configs. */
+exports.methodRearg = {
+  'assignInAllWith': [1, 0],
+  'assignInWith': [1, 2, 0],
+  'assignAllWith': [1, 0],
+  'assignWith': [1, 2, 0],
+  'differenceBy': [1, 2, 0],
+  'differenceWith': [1, 2, 0],
+  'getOr': [2, 1, 0],
+  'intersectionBy': [1, 2, 0],
+  'intersectionWith': [1, 2, 0],
+  'isEqualWith': [1, 2, 0],
+  'isMatchWith': [2, 1, 0],
+  'mergeAllWith': [1, 0],
+  'mergeWith': [1, 2, 0],
+  'padChars': [2, 1, 0],
+  'padCharsEnd': [2, 1, 0],
+  'padCharsStart': [2, 1, 0],
+  'pullAllBy': [2, 1, 0],
+  'pullAllWith': [2, 1, 0],
+  'rangeStep': [1, 2, 0],
+  'rangeStepRight': [1, 2, 0],
+  'setWith': [3, 1, 2, 0],
+  'sortedIndexBy': [2, 1, 0],
+  'sortedLastIndexBy': [2, 1, 0],
+  'unionBy': [1, 2, 0],
+  'unionWith': [1, 2, 0],
+  'updateWith': [3, 1, 2, 0],
+  'xorBy': [1, 2, 0],
+  'xorWith': [1, 2, 0],
+  'zipWith': [1, 2, 0]
+};
+
+/** Used to map method names to spread configs. */
+exports.methodSpread = {
+  'assignAll': { 'start': 0 },
+  'assignAllWith': { 'start': 0 },
+  'assignInAll': { 'start': 0 },
+  'assignInAllWith': { 'start': 0 },
+  'defaultsAll': { 'start': 0 },
+  'defaultsDeepAll': { 'start': 0 },
+  'invokeArgs': { 'start': 2 },
+  'invokeArgsMap': { 'start': 2 },
+  'mergeAll': { 'start': 0 },
+  'mergeAllWith': { 'start': 0 },
+  'partial': { 'start': 1 },
+  'partialRight': { 'start': 1 },
+  'without': { 'start': 1 },
+  'zipAll': { 'start': 0 }
+};
+
+/** Used to identify methods which mutate arrays or objects. */
+exports.mutate = {
+  'array': {
+    'fill': true,
+    'pull': true,
+    'pullAll': true,
+    'pullAllBy': true,
+    'pullAllWith': true,
+    'pullAt': true,
+    'remove': true,
+    'reverse': true
+  },
+  'object': {
+    'assign': true,
+    'assignAll': true,
+    'assignAllWith': true,
+    'assignIn': true,
+    'assignInAll': true,
+    'assignInAllWith': true,
+    'assignInWith': true,
+    'assignWith': true,
+    'defaults': true,
+    'defaultsAll': true,
+    'defaultsDeep': true,
+    'defaultsDeepAll': true,
+    'merge': true,
+    'mergeAll': true,
+    'mergeAllWith': true,
+    'mergeWith': true,
+  },
+  'set': {
+    'set': true,
+    'setWith': true,
+    'unset': true,
+    'update': true,
+    'updateWith': true
+  }
+};
+
+/** Used to map real names to their aliases. */
+exports.realToAlias = (function() {
+  var hasOwnProperty = Object.prototype.hasOwnProperty,
+      object = exports.aliasToReal,
+      result = {};
+
+  for (var key in object) {
+    var value = object[key];
+    if (hasOwnProperty.call(result, value)) {
+      result[value].push(key);
+    } else {
+      result[value] = [key];
+    }
+  }
+  return result;
+}());
+
+/** Used to map method names to other names. */
+exports.remap = {
+  'assignAll': 'assign',
+  'assignAllWith': 'assignWith',
+  'assignInAll': 'assignIn',
+  'assignInAllWith': 'assignInWith',
+  'curryN': 'curry',
+  'curryRightN': 'curryRight',
+  'defaultsAll': 'defaults',
+  'defaultsDeepAll': 'defaultsDeep',
+  'findFrom': 'find',
+  'findIndexFrom': 'findIndex',
+  'findLastFrom': 'findLast',
+  'findLastIndexFrom': 'findLastIndex',
+  'getOr': 'get',
+  'includesFrom': 'includes',
+  'indexOfFrom': 'indexOf',
+  'invokeArgs': 'invoke',
+  'invokeArgsMap': 'invokeMap',
+  'lastIndexOfFrom': 'lastIndexOf',
+  'mergeAll': 'merge',
+  'mergeAllWith': 'mergeWith',
+  'padChars': 'pad',
+  'padCharsEnd': 'padEnd',
+  'padCharsStart': 'padStart',
+  'propertyOf': 'get',
+  'rangeStep': 'range',
+  'rangeStepRight': 'rangeRight',
+  'restFrom': 'rest',
+  'spreadFrom': 'spread',
+  'trimChars': 'trim',
+  'trimCharsEnd': 'trimEnd',
+  'trimCharsStart': 'trimStart',
+  'zipAll': 'zip'
+};
+
+/** Used to track methods that skip fixing their arity. */
+exports.skipFixed = {
+  'castArray': true,
+  'flow': true,
+  'flowRight': true,
+  'iteratee': true,
+  'mixin': true,
+  'rearg': true,
+  'runInContext': true
+};
+
+/** Used to track methods that skip rearranging arguments. */
+exports.skipRearg = {
+  'add': true,
+  'assign': true,
+  'assignIn': true,
+  'bind': true,
+  'bindKey': true,
+  'concat': true,
+  'difference': true,
+  'divide': true,
+  'eq': true,
+  'gt': true,
+  'gte': true,
+  'isEqual': true,
+  'lt': true,
+  'lte': true,
+  'matchesProperty': true,
+  'merge': true,
+  'multiply': true,
+  'overArgs': true,
+  'partial': true,
+  'partialRight': true,
+  'propertyOf': true,
+  'random': true,
+  'range': true,
+  'rangeRight': true,
+  'subtract': true,
+  'zip': true,
+  'zipObject': true,
+  'zipObjectDeep': true
+};

fp/placeholder.js

@@ -0,0 +1,6 @@
+/**
+ * The default argument placeholder value for methods.
+ *
+ * @type {Object}
+ */
+module.exports = {};

incident_response_plan.md

@@ -0,0 +1,184 @@
+# Incident Response Plan
+
+## Introduction
+Security is a top priority for Lodash. This document outlines the **formal process** for handling **security reports**, including how to **triage**, **assess**, and **disclose** vulnerabilities responsibly.
+
+## Scope
+
+The [Security Triage Team][] will use this document as a process guide when a security vulnerability is reported, from triage to resolution. This process must align with the project's [SECURITY policy](SECURITY.md) and cannot diverge significantly.
+
+
+## Security Report Handling Flowchart
+The following diagram details the **decision-making process** for handling security reports:
+
+```mermaid
+flowchart TD
+    A[Security Report Received] --> B[Assign Security Report Coordinator]
+    B --> E{Premature Disclosure?}
+    
+    E -- No --> J[Proceed with Standard Private Process]
+    E -- Yes --> F[Privatize Disclosure]
+    F --> G[Handle Related PRs & Issues]
+    G --> H[Request GitHub to Remove Public PR/Issues]
+    H --> I[Create Public Placeholder Issue]
+    I --> J[Acknowledge within 5 days to the Reporter]
+    J --> K[Create Issue in Triage Repo for Visibility]
+
+    K --> L[Assess Report]
+    L --> M{Enough Information?}
+    
+    M -- No --> N[Request Additional Info]
+    N --> L[Assess Report]
+    
+    M -- Yes --> O{Valid Vulnerability?}
+    O -- No --> X[Close Report as Invalid]
+    X --> Y[Acknowledge within 10 days to the Reporter]
+    
+    O -- Yes --> Q[Create Advisory]
+    Q --> Q1[Calculate CVSS Score]
+    Q1 --> Q2[Request a CVE]
+
+    Q2 --> R{Patch Required?}
+    
+    R -- No --> Z[Public Disclosure]
+    
+    R -- Yes --> T[Develop Patch]
+    T --> U[Test Solution]
+    U --> V[Add Regression Testing]
+    V --> W[Create a Security Release with CVE Included]
+    W --> Z[Public Disclosure]
+    Z --> Z1[Notify Community]
+    Z1 --> Z2[Official Blog Post]
+    Z1 --> Z3[Social Media Announcements]
+```
+
+## Roles & Responsibilities
+
+### Finder
+
+This person identifies a potential security vulnerability in the project. The Finder may or may not be the same person as the Reporter. If the Finder is not the Reporter, they may share the details with someone else who submits the report to the Security Triage Team.
+
+**Responsibilities**
+- Identify potential security vulnerabilities in the project.
+- Share sufficient details about the vulnerability with the Reporter or directly with the Security Triage Team.
+
+**Expectations**
+- Follow responsible disclosure guidelines by ensuring the vulnerability is reported privately before public disclosure.
+- Provide clear and accurate information about the vulnerability to facilitate the reporting process.
+
+### Reporter
+
+This person submits a security report to the Security Triage Team and provides detailed information about the suspected vulnerability. It is expected that the Reporter will cooperate with the Security Triage Team during this process and follow responsible disclosure guidelines.
+
+**Responsibilities**
+- Submit a security report to the Security Triage Team.
+
+**Expectations**
+- Provide detailed information about the suspected vulnerability.
+- Follow responsible disclosure guidelines (report privately before public disclosure).
+- Cooperate with the Security Triage Team by providing additional details when needed.
+- Test and verify patches (when applicable).
+- Respect security timelines and avoid premature public disclosure.
+
+### Coordinator
+
+This person acts as the focal point for a specific security report and ensures the report follows all responsible disclosure guidelines. The SRC coordinates the remediation process if a vulnerability is confirmed and ensures that the security report follows the process and necessary actions are taken. While the SRC is not necessarily responsible for performing analysis, remediation, or patching, they may take on these tasks if they also hold the role of Analyst or Remediation Developer.
+
+**Responsibilities**
+- Acknowledge receipt of security reports within the required timeframe.
+- Orchestrate the embargo and identify the minimum set of individuals involved.
+  - Remind everyone involved that they must not notify/involve any other individuals. If someone else needs to be involved, that must go through the Coordinator.
+- Assign an Analyst to assess and validate the report.
+- Ensure communication with the reporter throughout the process.
+- Coordinate the remediation process if a vulnerability is confirmed.
+- Oversee the advisory & CVE request process if applicable.
+- Escalate critical vulnerabilities when necessary.
+- Track all security reports for visibility and reporting.
+
+**Requirements**
+- Must be a member of the Security Triage Team.
+
+
+### Analyst
+
+**Responsibilities**
+- Determine if the reported issue is a real vulnerability, and is in within the scope of our [threat model](threat-model.md)
+- Validate proof-of-concept exploits
+- Assess the security report and determine its severity (assist in CVSS).
+- Validate the reported vulnerability against best practices.
+- Identify potential mitigation strategies and workarounds.
+- Prepare a report for the Security Report Coordinator.
+
+### Remediation Developer
+
+**Responsibilities**
+- Develop a patch or solution based on the reported vulnerability.
+- Ensure the patch follows best practices and is testable.
+- Add test(s) to the existing test suite to confirm the vulnerability (pre-patch) and confirm the fix (post-patch).
+- Test the patch to ensure it works as expected.
+- Create a pull request to merge the patch into the project.
+
+## Runbook
+
+The following sections outline the **step-by-step process**, explaining each decision, scenario, and possible actions. In this guide we also include links that are private (limited to the Security Triage Team), a general overview of the process in flowchart format can be found [here](#security-report-handling-flowchart).
+
+### Step 0: Security Report Received
+
+A security vulnerability report is received via [official channels](SECURITY.md#reporting-a-security-issue) or otherwise (i.e. via third-party advisory services, blog post, social media, etc.).
+
+Ideally, the report must contain **clear and detailed information** like (Affected versions, a small PoC/sample project demonstrating the issue, steps to reproduce, expected vs. actual behavior, potential impact...) but this might not be the case depending on the communication channel used. Later on we will try to collect this information and refine the report.
+
+### Step 1: Assign Security Report Coordinator (SRC) and consolidate the report
+
+1.1 One person from the Security Triage Team will volunteer and self-assign to oversee the case. It is expected that the person will remain assigned until the end of the process, so they effectively take the role of [the Security Report Coordinator (SRC)](#security-report-coordinator-src). 
+
+> [!Note]
+> While this document refers to a single SRC for simplicity, in practice, having two coordinators is acceptable and often beneficial. A second coordinator can assist with tasks such as reviewing the advisory content before it is published, ensuring accuracy and completeness.
+
+1.2 If the report was created accidentally or intentionally in a public channel (e.g. GitHub issues), it is important to share this information ASAP in the private slack channel `#lodash-security-triage` so the Security Triage Team is aware of it. At this stage, our priority is to remove the report from public view as soon as possible and let the reporter know what happened next.
+
+1.2.1 In the case of a report made public in a Pull request or issue under the Lodash GitHub organization the following process will be followed (by a Lodash TSC Member):
+
+    * Move the issue to the private repository called [lodash/security-triage](https://github.com/lodash/security-triage).
+    * For any related pull requests, create an associated issue in [lodash/security-triage](https://github.com/lodash/security-triage) repository. Add a copy of the patch for the pull request to the issue. Add screenshots of discussion from the pull request to the issue.
+    * [Open a ticket with GitHub](https://support.github.com/contact) to delete the pull request using Lodash (team) as the account organization.
+    * Force-push to the PR branch to overwrite the code with a placeholder commit (if "allow edits by maintainers" is enabled). This ensures sensitive information is removed immediately.
+    * In the PR comments, notify the author about the force-push and explain the reason:
+        > FYI @xxxx, we force-pushed to your branch to remove sensitive information while we work on releases in private.
+    * Open a new issue in the public repository with the title `FYI - pull request deleted #YYYY`. Include an explanation for the user:
+        > FYI @xxxx we asked GitHub to delete your pull request while we work on releases in private.
+    * Update the team in the slack channel #lodash-security-triage`.
+
+1.2.2 In the case that the report is made public in a different channel that we don't own/control, the Lodash TSC will attempt to mitigate this by trying to remove the report from public view (reporting to support, asking the reporter to remove the report, etc...).
+
+
+1.3 At this stage the Security Report Coordinator (SRC) will create a (private) issue in [lodash/security-triage](https://github.com/lodash/security-triage) repository with the existing information from the security report unless it already exists (step 1.2.1). This issue will serve as the central discussion point for this particular report. At this stage is expected from the Security Report Coordinator (SRC) to acknowledge receipt of the security report to the reporter.
+
+> [!Note]
+> It is expected that the issue will be assigned to the Security Report Coordinator (SRC) and will remain open until the end of the process.
+
+### Step 2: Review the Report and determine its severity
+
+2.1 It is expected from the security triage team to review the report and determine its severity, also evaluating the impact on the project(s). In some cases the report might be too vague to properly determine its severity. In this case the Security Report Coordinator (SRC) will need to reach out to the reporter for more information and refine the report.
+
+2.2 At this stage we are capable of determining the severity of the report based on the information provided and also if the report is still relevant. In case that the team has considered the report to be irrelevant or not valid, the Security Report Coordinator (SRC) will need to close the issue and inform the reporter that the report has been dismissed, ideally we can provide a reason for dismissal to prevent the report from being resubmitted within the project(s) in the future.
+
+2.3 If the report is considered relevant and valid, the Security Report Coordinator (SRC) will create an advisory and request a CVE number. The Security Report Coordinator (SRC) will also include the remediation developer(s), analyst(s) and potentially the reporter in the advisory, so they can start to work on private fork to fix the security issue.
+
+### Step 3: Patch and release
+
+3.1 The security triage team will determine if this vulnerability will be patched and work on it. In case that the vulnerability won't be patched jump to step 4.
+
+3.2 The mitigation team (remediation developer(s), analyst(s), reporter(s)) will work on the patch(es), re-evaluate the report once the patch is ready and include regression tests (when possible).
+
+3.3 The Lodash TSC will announce publicly on a public issue that there is security patch available and the plan to do a release with an specific date (ideally) and the versions affected without providing additional information to prevent early disclosure.
+
+3.4 The Lodash TSC will create the releases and publish them to npm.
+
+### Step 4: Public disclosure
+
+4.1 At this stage the Security Report Coordinator (SRC) will make the advisory public and close the coordination issue (opened in step 1).
+
+4.2 The Security Report Coordinator (SRC) can ask the Lodash TSC to coordinate blog post or social media announcements using the OpenJS Foundation channels.
+
+[Security Triage Team]: GOVERNANCE.md#security-triage-team

index.js

@@ -1 +0,0 @@
-module.exports = require('./dist/lodash.compat.js');

lib/common/file.js

@@ -0,0 +1,71 @@
+'use strict';
+
+const _ = require('lodash');
+const fs = require('fs-extra');
+const glob = require('glob');
+const path = require('path');
+
+const minify = require('../common/minify.js');
+
+/*----------------------------------------------------------------------------*/
+
+/**
+ * Creates a [fs.copy](https://github.com/jprichardson/node-fs-extra#copy)
+ * function with `srcPath` and `destPath` partially applied.
+ *
+ * @memberOf file
+ * @param {string} srcPath The path of the file to copy.
+ * @param {string} destPath The path to copy the file to.
+ * @returns {Function} Returns the partially applied function.
+ */
+function copy(srcPath, destPath) {
+  return _.partial(fs.copy, srcPath, destPath);
+}
+
+/**
+ * Creates an object of base name and compiled template pairs that match `pattern`.
+ *
+ * @memberOf file
+ * @param {string} pattern The glob pattern to be match.
+ * @returns {Object} Returns the object of compiled templates.
+ */
+function globTemplate(pattern) {
+  return _.transform(glob.sync(pattern), (result, filePath) => {
+    const key = path.basename(filePath, path.extname(filePath));
+    result[key] = _.template(fs.readFileSync(filePath, 'utf8'));
+  }, {});
+}
+
+/**
+ * Creates a `minify` function with `srcPath` and `destPath` partially applied.
+ *
+ * @memberOf file
+ * @param {string} srcPath The path of the file to minify.
+ * @param {string} destPath The path to write the file to.
+ * @returns {Function} Returns the partially applied function.
+ */
+function min(srcPath, destPath) {
+  return _.partial(minify, srcPath, destPath);
+}
+
+/**
+ * Creates a [fs.writeFile](https://nodejs.org/api/fs.html#fs_fs_writefile_file_data_options_callback)
+ * function with `filePath` and `data` partially applied.
+ *
+ * @memberOf file
+ * @param {string} destPath The path to write the file to.
+ * @param {string} data The data to write to the file.
+ * @returns {Function} Returns the partially applied function.
+ */
+function write(destPath, data) {
+  return _.partial(fs.writeFile, destPath, data);
+}
+
+/*----------------------------------------------------------------------------*/
+
+module.exports = {
+  copy,
+  globTemplate,
+  min,
+  write
+};

lib/common/mapping.js

@@ -0,0 +1,9 @@
+'use strict';
+
+const _mapping = require('../../fp/_mapping');
+const util = require('./util');
+const Hash = util.Hash;
+
+/*----------------------------------------------------------------------------*/
+
+module.exports = new Hash(_mapping);

lib/common/minify.js

@@ -0,0 +1,39 @@
+'use strict';
+
+const _ = require('lodash');
+const fs = require('fs-extra');
+const uglify = require('uglify-js');
+
+const uglifyOptions = require('./uglify.options');
+
+/*----------------------------------------------------------------------------*/
+
+/**
+ * Asynchronously minifies the file at `srcPath`, writes it to `destPath`, and
+ * invokes `callback` upon completion. The callback is invoked with one argument:
+ * (error).
+ *
+ * If unspecified, `destPath` is `srcPath` with an extension of `.min.js`.
+ * (e.g. the `destPath` of `path/to/foo.js` would be `path/to/foo.min.js`)
+ *
+ * @param {string} srcPath The path of the file to minify.
+ * @param {string} [destPath] The path to write the file to.
+ * @param {Function} callback The function invoked upon completion.
+ * @param {Object} [option] The UglifyJS options object.
+ */
+function minify(srcPath, destPath, callback, options) {
+  if (_.isFunction(destPath)) {
+    if (_.isObject(callback)) {
+      options = callback;
+    }
+    callback = destPath;
+    destPath = undefined;
+  }
+  if (!destPath) {
+    destPath = srcPath.replace(/(?=\.js$)/, '.min');
+  }
+  const output = uglify.minify(srcPath, _.defaults(options || {}, uglifyOptions));
+  fs.writeFile(destPath, output.code, 'utf-8', callback);
+}
+
+module.exports = minify;

lib/common/uglify.options.js

@@ -0,0 +1,22 @@
+'use strict';
+
+/**
+ * The UglifyJS options object for
+ * [compress](https://github.com/mishoo/UglifyJS2#compressor-options),
+ * [mangle](https://github.com/mishoo/UglifyJS2#mangler-options), and
+ * [output](https://github.com/mishoo/UglifyJS2#beautifier-options) options.
+ */
+module.exports = {
+  'compress': {
+    'collapse_vars': true,
+    'negate_iife': false,
+    'pure_getters': true,
+    'unsafe': true,
+    'warnings': false
+  },
+  'output': {
+    'ascii_only': true,
+    'comments': /@license/,
+    'max_line_len': 500
+  }
+};

lib/common/util.js

@@ -0,0 +1,40 @@
+'use strict';
+
+const _ = require('lodash');
+
+/*----------------------------------------------------------------------------*/
+
+/**
+ * Creates a hash object. If a `properties` object is provided, its own
+ * enumerable properties are assigned to the created hash.
+ *
+ * @memberOf util
+ * @param {Object} [properties] The properties to assign to the hash.
+ * @returns {Object} Returns the new hash object.
+ */
+function Hash(properties) {
+  return _.transform(properties, (result, value, key) => {
+    result[key] = (_.isPlainObject(value) && !(value instanceof Hash))
+      ? new Hash(value)
+      : value;
+  }, this);
+}
+
+Hash.prototype = Object.create(null);
+
+/**
+ * This method throws any error it receives.
+ *
+ * @memberOf util
+ * @param {Object} [error] The error object.
+ */
+function pitch(error) {
+  if (error != null) {
+    throw error;
+  }
+}
+
+module.exports = {
+  Hash,
+  pitch
+};

lib/fp/build-dist.js

@@ -0,0 +1,56 @@
+'use strict';
+
+const _ = require('lodash');
+const async = require('async');
+const path = require('path');
+const webpack = require('webpack');
+
+const file = require('../common/file');
+const util = require('../common/util');
+
+const basePath = path.join(__dirname, '..', '..');
+const distPath = path.join(basePath, 'dist');
+const fpPath = path.join(basePath, 'fp');
+const filename = 'lodash.fp.js';
+
+const fpConfig = {
+  'entry': path.join(fpPath, '_convertBrowser.js'),
+  'output': {
+    'path': distPath,
+    'filename': filename,
+    'library': 'fp',
+    'libraryTarget': 'umd'
+  },
+  'plugins': [
+    new webpack.optimize.OccurenceOrderPlugin,
+    new webpack.optimize.DedupePlugin
+  ]
+};
+
+const mappingConfig = {
+  'entry': path.join(fpPath, '_mapping.js'),
+  'output': {
+    'path': distPath,
+    'filename': 'mapping.fp.js',
+    'library': 'mapping',
+    'libraryTarget': 'umd'
+  }
+};
+
+/*----------------------------------------------------------------------------*/
+
+/**
+ * Creates browser builds of the FP converter and mappings at the `target` path.
+ *
+ * @private
+ * @param {string} target The output directory path.
+ */
+function build() {
+  async.series([
+    _.partial(webpack, mappingConfig),
+    _.partial(webpack, fpConfig),
+    file.min(path.join(distPath, filename))
+  ], util.pitch);
+}
+
+build();

lib/fp/build-doc.js

@@ -0,0 +1,78 @@
+'use strict';
+
+const _ = require('lodash');
+const fs = require('fs-extra');
+const path = require('path');
+
+const file = require('../common/file');
+const mapping = require('../common/mapping');
+const util = require('../common/util');
+
+const templatePath = path.join(__dirname, 'template/doc');
+const template = file.globTemplate(path.join(templatePath, '*.jst'));
+
+const argNames = ['a', 'b', 'c', 'd'];
+
+const templateData = {
+  mapping,
+  toArgOrder,
+  toFuncList
+};
+
+/**
+ * Converts arranged argument `indexes` into a named argument string
+ * representation of their order.
+ *
+ * @private
+ * @param {number[]} indexes The arranged argument indexes.
+ * @returns {string} Returns the named argument string.
+ */
+function toArgOrder(indexes) {
+  const reordered = [];
+  _.each(indexes, (newIndex, index) => {
+    reordered[newIndex] = argNames[index];
+  });
+  return '`(' + reordered.join(', ') + ')`';
+}
+
+/**
+ * Converts `funcNames` into a chunked list string representation.
+ *
+ * @private
+ * @param {string[]} funcNames The function names.
+ * @returns {string} Returns the function list string.
+ */
+function toFuncList(funcNames) {
+  let chunks = _.chunk(funcNames.slice().sort(), 5);
+  let lastChunk = _.last(chunks);
+  const lastName = lastChunk ? lastChunk.pop() : undefined;
+
+  chunks = _.reject(chunks, _.isEmpty);
+  lastChunk = _.last(chunks);
+
+  let result = '`' + _.map(chunks, chunk => chunk.join('`, `') + '`').join(',\n`');
+  if (lastName == null) {
+    return result;
+  }
+  if (_.size(chunks) > 1 || _.size(lastChunk) > 1) {
+    result += ',';
+  }
+  result += ' &';
+  result += _.size(lastChunk) < 5 ? ' ' : '\n';
+  return result + '`' + lastName + '`';
+}
+
+/*----------------------------------------------------------------------------*/
+
+/**
+ * Creates the FP-Guide wiki at the `target` path.
+ *
+ * @private
+ * @param {string} target The output file path.
+ */
+function build(target) {
+  target = path.resolve(target);
+  fs.writeFile(target, template.wiki(templateData), util.pitch);
+}
+
+build(_.last(process.argv));

lib/fp/build-modules.js

@@ -0,0 +1,150 @@
+'use strict';
+
+const _ = require('lodash');
+const async = require('async');
+const glob = require('glob');
+const path = require('path');
+
+const file = require('../common/file');
+const mapping = require('../common/mapping');
+const util = require('../common/util');
+
+const templatePath = path.join(__dirname, 'template/modules');
+const template = file.globTemplate(path.join(templatePath, '*.jst'));
+
+const aryMethods = _.union(
+  mapping.aryMethod[1],
+  mapping.aryMethod[2],
+  mapping.aryMethod[3],
+  mapping.aryMethod[4]
+);
+
+const categories = [
+  'array',
+  'collection',
+  'date',
+  'function',
+  'lang',
+  'math',
+  'number',
+  'object',
+  'seq',
+  'string',
+  'util'
+];
+
+const ignored = [
+  '_*.js',
+  'core.js',
+  'core.min.js',
+  'fp.js',
+  'index.js',
+  'lodash.js',
+  'lodash.min.js'
+];
+
+/**
+ * Checks if `name` is a method alias.
+ *
+ * @private
+ * @param {string} name The name to check.
+ * @returns {boolean} Returns `true` if `name` is a method alias, else `false`.
+ */
+function isAlias(name) {
+  return _.has(mapping.aliasToReal, name);
+}
+
+/**
+ * Checks if `name` is a category name.
+ *
+ * @private
+ * @param {string} name The name to check.
+ * @returns {boolean} Returns `true` if `name` is a category name, else `false`.
+ */
+function isCategory(name) {
+  return _.includes(categories, name);
+}
+
+/**
+ * Checks if `name` belongs to a method that's passed thru and not wrapped.
+ *
+ * @private
+ * @param {string} name The name to check.
+ * @returns {boolean} Returns `true` if `name` is of a pass thru method,
+ *  else `false`.
+ */
+function isThru(name) {
+  return !_.includes(aryMethods, name);
+}
+
+/**
+ * Gets metadata for `func`.
+ *
+ * @private
+ * @param {Function} func The function to query.
+ * @returns {*} Returns the metadata for `func`.
+ */
+function getTemplate(moduleName) {
+  const data = {
+    'name': _.get(mapping.aliasToReal, moduleName, moduleName),
+    'mapping': mapping
+  };
+
+  if (isAlias(moduleName)) {
+    return template.alias(data);
+  }
+  if (isCategory(moduleName)) {
+    return template.category(data);
+  }
+  if (isThru(moduleName)) {
+    return template.thru(data);
+  }
+  return template.module(data);
+}
+
+/*----------------------------------------------------------------------------*/
+
+/**
+ * Creates FP modules at the `target` path.
+ *
+ * @private
+ * @param {string} target The output directory path.
+ */
+function build(target) {
+  target = path.resolve(target);
+
+  const fpPath = path.join(target, 'fp');
+
+  // Glob existing lodash module paths.
+  const modulePaths = glob.sync(path.join(target, '*.js'), {
+    'nodir': true,
+    'ignore': ignored.map(filename => {
+      return path.join(target, filename);
+    })
+  });
+
+  // Add FP alias and remapped module paths.
+  _.each([mapping.aliasToReal, mapping.remap], data => {
+    _.forOwn(data, (realName, alias) => {
+      const modulePath = path.join(target, alias + '.js');
+      if (!_.includes(modulePaths, modulePath)) {
+        modulePaths.push(modulePath);
+      }
+    });
+  });
+
+  const actions = modulePaths.map(modulePath => {
+    const moduleName = path.basename(modulePath, '.js');
+    return file.write(path.join(fpPath, moduleName + '.js'), getTemplate(moduleName));
+  });
+
+  actions.unshift(file.copy(path.join(__dirname, '../../fp'), fpPath));
+  actions.push(file.write(path.join(fpPath, '_falseOptions.js'), template._falseOptions()));
+  actions.push(file.write(path.join(fpPath, '_util.js'), template._util()));
+  actions.push(file.write(path.join(target, 'fp.js'), template.fp()));
+  actions.push(file.write(path.join(fpPath, 'convert.js'), template.convert()));
+
+  async.series(actions, util.pitch);
+}
+
+build(_.last(process.argv));

lib/fp/template/doc/wiki.jst

@@ -0,0 +1,228 @@
+## lodash/fp
+
+The `lodash/fp` module promotes a more
+[functional programming](https://en.wikipedia.org/wiki/Functional_programming)
+(FP) friendly style by exporting an instance of `lodash` with its methods wrapped
+to produce immutable auto-curried iteratee-first data-last methods.
+
+## Installation
+
+In a browser:
+```html
+<script src='https://cdn.jsdelivr.net/g/lodash@4(lodash.min.js+lodash.fp.min.js)'></script>
+<script>
+// Loading `lodash.fp.js` converts `_` to its fp variant.
+_.defaults({ 'a': 2, 'b': 2 })({ 'a': 1 });
+// ➜ { 'a': 1, 'b': 2 }
+
+// Use `noConflict` to restore the pre-fp variant.
+var fp = _.noConflict();
+
+_.defaults({ 'a': 1 }, { 'a': 2, 'b': 2 });
+// ➜ { 'a': 1, 'b': 2 }
+fp.defaults({ 'a': 2, 'b': 2 })({ 'a': 1 });
+// ➜ { 'a': 1, 'b': 2 }
+</script>
+```
+
+In Node.js:
+```js
+// Load the fp build.
+var fp = require('lodash/fp');
+
+// Load a method category.
+var object = require('lodash/fp/object');
+
+// Load a single method for smaller builds with browserify/rollup/webpack.
+var extend = require('lodash/fp/extend');
+```
+
+## Mapping
+
+Immutable auto-curried iteratee-first data-last methods sound great, but what
+does that really mean for each method? Below is a breakdown of the mapping used
+to convert each method.
+
+#### Capped Iteratee Arguments
+
+Iteratee arguments are capped to avoid gotchas with variadic iteratees.
+```js
+// The `lodash/map` iteratee receives three arguments:
+// (value, index|key, collection)
+_.map(['6', '8', '10'], parseInt);
+// ➜ [6, NaN, 2]
+
+// The `lodash/fp/map` iteratee is capped at one argument:
+// (value)
+fp.map(parseInt)(['6', '8', '10']);
+// ➜ [6, 8, 10]
+```
+
+Methods that cap iteratees to one argument:<br>
+<%= toFuncList(_.keys(_.pickBy(mapping.iterateeAry, _.partial(_.eq, _, 1)))) %>
+
+Methods that cap iteratees to two arguments:<br>
+<%= toFuncList(_.keys(_.pickBy(mapping.iterateeAry, _.partial(_.eq, _, 2)))) %>
+
+The iteratee of `mapKeys` is capped to one argument: `(key)`
+
+#### Fixed Arity
+
+Methods have fixed arities to support auto-currying.
+```js
+// `lodash/padStart` accepts an optional `chars` param.
+_.padStart('a', 3, '-')
+// ➜ '--a'
+
+// `lodash/fp/padStart` does not.
+fp.padStart(3)('a');
+// ➜ '  a'
+fp.padCharsStart('-')(3)('a');
+// ➜ '--a'
+```
+
+Methods with a fixed arity of one:<br>
+<%= toFuncList(_.difference(mapping.aryMethod[1], _.keys(mapping.skipFixed))) %>
+
+Methods with a fixed arity of two:<br>
+<%= toFuncList(_.difference(mapping.aryMethod[2], _.keys(mapping.skipFixed))) %>
+
+Methods with a fixed arity of three:<br>
+<%= toFuncList(_.difference(mapping.aryMethod[3], _.keys(mapping.skipFixed))) %>
+
+Methods with a fixed arity of four:<br>
+<%= toFuncList(_.difference(mapping.aryMethod[4], _.keys(mapping.skipFixed))) %>
+
+#### Rearranged Arguments
+
+Method arguments are rearranged to make composition easier.
+```js
+// `lodash/filter` is data-first iteratee-last:
+// (collection, iteratee)
+var compact = _.partial(_.filter, _, Boolean);
+compact(['a', null, 'c']);
+// ➜ ['a', 'c']
+
+// `lodash/fp/filter` is iteratee-first data-last:
+// (iteratee, collection)
+var compact = fp.filter(Boolean);
+compact(['a', null, 'c']);
+// ➜ ['a', 'c']
+```
+
+##### Most methods follow these rules
+
+A fixed arity of two has an argument order of:<br>
+<%= toArgOrder(mapping.aryRearg[2]) %>
+
+A fixed arity of three has an argument order of:<br>
+<%= toArgOrder(mapping.aryRearg[3]) %>
+
+A fixed arity of four has an argument order of:<br>
+<%= toArgOrder(mapping.aryRearg[4]) %>
+
+##### Exceptions to the rules
+
+Methods that accept an array as their last, second to last, or only argument:<br>
+<%= toFuncList(_.keys(mapping.methodSpread)) %>
+
+Methods with unchanged argument orders:<br>
+<%= toFuncList(_.keys(mapping.skipRearg)) %>
+
+Methods with custom argument orders:<br>
+<%= _.map(_.keys(mapping.methodRearg), methodName => {
+  const orders = mapping.methodRearg[methodName];
+  return ' * `_.' + methodName + '` has an order of ' + toArgOrder(orders);
+}).join('\n') %>
+
+The iteratee of `reduceRight` has an argument order of: `(b, a)`
+
+#### New Methods
+
+Not all variadic methods have corresponding new method variants. Feel free to
+[request](https://github.com/lodash/lodash/blob/master/.github/CONTRIBUTING.md#feature-requests)
+any additions.
+
+Methods created to accommodate Lodash’s variadic methods:<br>
+<%= toFuncList(_.keys(mapping.remap)) %>
+
+#### Aliases
+
+There are <%= _.size(mapping.aliasToReal) %> method aliases:<br>
+<%= _.map(_.keys(mapping.aliasToReal).sort(), alias => {
+  const realName = mapping.aliasToReal[alias];
+  return ' * `_.' + alias + '` is an alias of `_.' + realName + '`';
+}).join('\n') %>
+
+## Placeholders
+
+The placeholder argument, which defaults to `_`, may be used to fill in method
+arguments in a different order. Placeholders are filled by the first available
+arguments of the curried returned function.
+```js
+// The equivalent of `2 > 5`.
+_.gt(2)(5);
+// ➜ false
+
+// The equivalent of `_.gt(5, 2)` or `5 > 2`.
+_.gt(_, 2)(5);
+// ➜ true
+```
+
+## Chaining
+
+The `lodash/fp` module **does not** convert chain sequence methods. See
+[Izaak Schroeder’s article](https://medium.com/making-internets/why-using-chain-is-a-mistake-9bc1f80d51ba)
+on using functional composition as an alternative to method chaining.
+
+## Convert
+
+Although `lodash/fp` & its method modules come pre-converted, there are times
+when you may want to customize the conversion. That’s when the `convert` method
+comes in handy.
+```js
+// Every option is `true` by default.
+var _fp = fp.convert({
+  // Specify capping iteratee arguments.
+  'cap': true,
+  // Specify currying.
+  'curry': true,
+  // Specify fixed arity.
+  'fixed': true,
+  // Specify immutable operations.
+  'immutable': true,
+  // Specify rearranging arguments.
+  'rearg': true
+});
+
+// The `convert` method is available on each method too.
+var mapValuesWithKey = fp.mapValues.convert({ 'cap': false });
+
+// Here’s an example of disabling iteratee argument caps to access the `key` param.
+mapValuesWithKey(function(value, key) {
+  return key == 'a' ? -1 : value;
+})({ 'a': 1, 'b': 1 });
+// => { 'a': -1, 'b': 1 }
+```
+
+Manual conversions are also possible with the `convert` module.
+```js
+var convert = require('lodash/fp/convert');
+
+// Convert by name.
+var assign = convert('assign', require('lodash.assign'));
+
+// Convert by object.
+var fp = convert({
+  'assign': require('lodash.assign'),
+  'chunk': require('lodash.chunk')
+});
+
+// Convert by `lodash` instance.
+var fp = convert(lodash.runInContext());
+```
+
+## Tooling
+
+Use [eslint-plugin-lodash-fp](https://www.npmjs.com/package/eslint-plugin-lodash-fp)
+to help use `lodash/fp` more efficiently.

lib/fp/template/modules/_falseOptions.jst

@@ -0,0 +1,7 @@
+module.exports = {
+  'cap': false,
+  'curry': false,
+  'fixed': false,
+  'immutable': false,
+  'rearg': false
+};

lib/fp/template/modules/_util.jst

@@ -0,0 +1,16 @@
+module.exports = {
+  'ary': require('../ary'),
+  'assign': require('../_baseAssign'),
+  'clone': require('../clone'),
+  'curry': require('../curry'),
+  'forEach': require('../_arrayEach'),
+  'isArray': require('../isArray'),
+  'isError': require('../isError'),
+  'isFunction': require('../isFunction'),
+  'isWeakMap': require('../isWeakMap'),
+  'iteratee': require('../iteratee'),
+  'keys': require('../_baseKeys'),
+  'rearg': require('../rearg'),
+  'toInteger': require('../toInteger'),
+  'toPath': require('../toPath')
+};

lib/fp/template/modules/alias.jst

@@ -0,0 +1 @@
+module.exports = require('./<%= name %>');

lib/fp/template/modules/category.jst

@@ -0,0 +1,2 @@
+var convert = require('./convert');
+module.exports = convert(require('../<%= name %>'));

lib/fp/template/modules/convert.jst

@@ -0,0 +1,18 @@
+var baseConvert = require('./_baseConvert'),
+    util = require('./_util');
+
+/**
+ * Converts `func` of `name` to an immutable auto-curried iteratee-first data-last
+ * version with conversion `options` applied. If `name` is an object its methods
+ * will be converted.
+ *
+ * @param {string} name The name of the function to wrap.
+ * @param {Function} [func] The function to wrap.
+ * @param {Object} [options] The options object. See `baseConvert` for more details.
+ * @returns {Function|Object} Returns the converted function or object.
+ */
+function convert(name, func, options) {
+  return baseConvert(util, name, func, options);
+}
+
+module.exports = convert;

lib/fp/template/modules/fp.jst

@@ -0,0 +1,2 @@
+var _ = require('./lodash.min').runInContext();
+module.exports = require('./fp/_baseConvert')(_, _);

lib/fp/template/modules/module.jst

@@ -0,0 +1,5 @@
+var convert = require('./convert'),
+    func = convert('<%= name %>', require('../<%= _.get(mapping.remap, name, name) %>'));
+
+func.placeholder = require('./placeholder');
+module.exports = func;

lib/fp/template/modules/thru.jst

@@ -0,0 +1,5 @@
+var convert = require('./convert'),
+    func = convert('<%= name %>', require('../<%= _.get(mapping.remap, name, name) %>'), require('./_falseOptions'));
+
+func.placeholder = require('./placeholder');
+module.exports = func;

lib/main/build-dist.js

@@ -0,0 +1,31 @@
+'use strict';
+
+const async = require('async');
+const path = require('path');
+
+const file = require('../common/file');
+const util = require('../common/util');
+
+const basePath = path.join(__dirname, '..', '..');
+const distPath = path.join(basePath, 'dist');
+const filename = 'lodash.js';
+
+const baseLodash = path.join(basePath, filename);
+const distLodash = path.join(distPath, filename);
+
+/*----------------------------------------------------------------------------*/
+
+/**
+ * Creates browser builds of Lodash at the `target` path.
+ *
+ * @private
+ * @param {string} target The output directory path.
+ */
+function build() {
+  async.series([
+    file.copy(baseLodash, distLodash),
+    file.min(distLodash)
+  ], util.pitch);
+}
+
+build();

lib/main/build-doc.js

@@ -0,0 +1,83 @@
+'use strict';
+
+const _ = require('lodash');
+const docdown = require('docdown');
+const fs = require('fs-extra');
+const path = require('path');
+
+const util = require('../common/util');
+
+const basePath = path.join(__dirname, '..', '..');
+const docPath = path.join(basePath, 'doc');
+const readmePath = path.join(docPath, 'README.md');
+
+const pkg = require('../../package.json');
+const version = pkg.version;
+
+const config = {
+  'base': {
+    'path': path.join(basePath, 'lodash.js'),
+    'title': `<a href="https://lodash.com/">lodash</a> <span>v${ version }</span>`,
+    'toc': 'categories',
+    'url': `https://github.com/lodash/lodash/blob/${ version }/lodash.js`
+  },
+  'github': {
+    'style': 'github',
+    'sublinks': [npmLink('&#x24C3;', 'See the npm package')]
+  },
+  'site': {
+    'entryLink': '<a href="${entryHref}" class="fa fa-link"></a>',
+    'sourceLink': '[source](${sourceHref})',
+    'tocHref': '',
+    'tocLink': '',
+    'sublinks': [npmLink('npm package')]
+  }
+};
+
+/**
+ * Composes a npm link from `text` and optional `title`.
+ *
+ * @private
+ * @param {string} text The link text.
+ * @param {string} [title] The link title.
+ * @returns {string} Returns the composed npm link.
+ */
+function npmLink(text, title) {
+  return (
+    '<% if (name == "templateSettings" || !/^(?:methods|properties|seq)$/i.test(category)) {' +
+      'print(' +
+        '"[' + text + '](https://www.npmjs.com/package/lodash." + name.toLowerCase() + ' +
+        '"' + (title == null ? '' : ' \\"' + title + '\\"') + ')"' +
+      ');' +
+    '} %>'
+  );
+}
+
+/**
+ * Post-process `markdown` to make adjustments.
+ *
+ * @private
+ * @param {string} markdown The markdown to process.
+ * @returns {string} Returns the processed markdown.
+ */
+function postprocess(markdown) {
+  // Wrap symbol property identifiers in brackets.
+  return markdown.replace(/\.(Symbol\.(?:[a-z]+[A-Z]?)+)/g, '[$1]');
+}
+
+/*----------------------------------------------------------------------------*/
+
+/**
+ * Creates the documentation markdown formatted for 'github' or 'site'.
+ *
+ * @private
+ * @param {string} type The format type.
+ */
+function build(type) {
+  const options = _.defaults({}, config.base, config[type]);
+  const markdown = docdown(options);
+
+  fs.writeFile(readmePath, postprocess(markdown), util.pitch);
+}
+
+build(_.last(process.argv));

lib/main/build-modules.js

@@ -0,0 +1,34 @@
+'use strict';
+
+const _ = require('lodash');
+const async = require('async');
+const path = require('path');
+
+const file = require('../common/file');
+const util = require('../common/util');
+
+const basePath = path.join(__dirname, '..', '..');
+const distPath = path.join(basePath, 'dist');
+
+const filePairs = [
+  [path.join(distPath, 'lodash.core.js'), 'core.js'],
+  [path.join(distPath, 'lodash.core.min.js'), 'core.min.js'],
+  [path.join(distPath, 'lodash.min.js'), 'lodash.min.js']
+];
+
+/*----------------------------------------------------------------------------*/
+
+/**
+ * Creates supplementary Lodash modules at the `target` path.
+ *
+ * @private
+ * @param {string} target The output directory path.
+ */
+function build(target) {
+  const actions = _.map(filePairs, pair =>
+    file.copy(pair[0], path.join(target, pair[1])));
+
+  async.series(actions, util.pitch);
+}
+
+build(_.last(process.argv));

lib/main/build-site.js

@@ -0,0 +1,239 @@
+'use strict';
+
+const _ = require('lodash');
+const cheerio = require('cheerio');
+const fs = require('fs');
+const marky = require('marky-markdown');
+const path = require('path');
+const util = require('../common/util');
+
+const basePath = path.join(__dirname, '..', '..');
+const docPath = path.join(basePath, 'doc');
+const readmePath = path.join(docPath, 'README.md');
+
+const highlights = {
+  'html': [
+    'string'
+  ],
+  'js': [
+    'comment',
+    'console',
+    'delimiter',
+    'method',
+    'modifier',
+    'name',
+    'numeric',
+    'string',
+    'support',
+    'type'
+  ]
+};
+
+const exts = _.keys(highlights);
+
+/**
+ * Converts Lodash method references into documentation links.
+ *
+ * Searches for inline code references matching `_.word` (e.g., `_.map`, `_.filter`)
+ * in documentation body text and wraps them in anchor links. Excludes code within
+ * headers as those already have proper anchors.
+ *
+ * @private
+ * @param {Object} $ The Cheerio object.
+ *
+ * @example
+ * // Body text: <code>_.map</code> → <a href="#map"><code>_.map</code></a>
+ * // Headers: <h3><code>_.VERSION</code></h3> → unchanged (excluded)
+ */
+function autoLink($) {
+  $('.doc-container code:not(:header code)').each(function() {
+    const $code = $(this);
+    const html = $code.html();
+    if (/^_\.\w+$/.test(html)) {
+      const id = html.split('.')[1];
+      $code.replaceWith(`<a href="#${ id }"><code>_.${ id }</code></a>`);
+    }
+  });
+}
+
+/**
+ * Removes horizontal rules from the document.
+ *
+ * @private
+ * @param {Object} $ The Cheerio object.
+ */
+function removeHorizontalRules($) {
+  $('hr').remove();
+}
+
+/**
+ * Removes marky-markdown specific ids and class names.
+ *
+ * @private
+ * @param {Object} $ The Cheerio object.
+ */
+function removeMarkyAttributes($) {
+  $('[id^="user-content-"]')
+    .attr('class', null)
+    .attr('id', null);
+
+  $(':header:not(h3) > a').each(function() {
+    const $a = $(this);
+    $a.replaceWith($a.html());
+  });
+}
+
+/**
+ * Renames "_" id and anchor references to "lodash".
+ *
+ * @private
+ * @param {Object} $ The Cheerio object.
+ */
+function renameLodashId($) {
+  $('#_').attr('id', 'lodash');
+  $('[href="#_"]').attr('href', '#lodash');
+}
+
+/**
+ * Repairs broken marky-markdown headers.
+ * See https://github.com/npm/marky-markdown/issues/217 for more details.
+ *
+ * @private
+ * @param {Object} $ The Cheerio object.
+ */
+function repairMarkyHeaders($) {
+  $('p:empty + h3').prev().remove();
+
+  $('h3 ~ p:empty').each(function() {
+    const $p = $(this);
+    let node = this.prev;
+    while ((node = node.prev) && node.name != 'h3' && node.name != 'p') {
+      $p.prepend(node.next);
+    }
+  });
+
+  $('h3 code em').parent().each(function() {
+    const $code = $(this);
+    $code.html($code.html().replace(/<\/?em>/g, '_'));
+  });
+}
+
+/**
+ * Cleans up highlights blocks by removing extraneous class names and elements.
+ *
+ * @private
+ * @param {Object} $ The Cheerio object.
+ */
+function tidyHighlights($) {
+  $('.highlight').each(function() {
+    let $spans;
+    const $parent = $(this);
+    const classes = $parent.find('.source,.text').first().attr('class').split(' ');
+    const ext = _(classes).intersection(exts).last();
+
+    $parent.addClass(ext);
+
+    // Remove line indicators for single line snippets.
+    $parent.children('pre').each(function() {
+      const $divs = $(this).children('div');
+      if ($divs.length == 1) {
+        $divs.replaceWith($divs.html());
+      }
+    });
+    // Remove extraneous class names.
+    $parent.find('[class]').each(function() {
+      const $element = $(this);
+      const classes = $element.attr('class').split(' ');
+      const attr = _(classes).intersection(highlights[ext]).join(' ');
+      $element.attr('class', attr || null);
+    });
+    // Collapse nested comment highlights.
+    $parent.find(`[class~="comment"]`).each(function() {
+      const $element = $(this);
+      $element.text($element.text().trim());
+    });
+    // Collapse nested string highlights.
+    $parent.find(`[class~="string"]`).each(function() {
+      const $element = $(this);
+      $element.text($element.text());
+    });
+    // Collapse nested spans.
+    while (($spans = $parent.find('span:not([class])')).length) {
+      $spans.each(function() {
+        let $span = $(this);
+        while ($span[0] && $span[0].name == 'span' && !$span.attr('class')) {
+          const $parent = $span.parent();
+          $span.replaceWith($span.html());
+          $span = $parent;
+        }
+      });
+    }
+  });
+}
+
+/*----------------------------------------------------------------------------*/
+
+/**
+ * Creates the documentation HTML.
+ *
+ * @private
+ */
+function build() {
+  const markdown = fs
+    // Load markdown.
+    .readFileSync(readmePath, 'utf8')
+    // Uncomment docdown HTML hints.
+    .replace(/(<)!--\s*|\s*--(>)/g, '$1$2')
+    // Convert docdown-generated [source] and [npm package] links to HTML.
+    // These appear as markdown immediately after h3 tags, which marky-markdown
+    // doesn't process (it treats content after HTML blocks as plain text).
+    // Pattern 1: Dual links for methods with npm packages.
+    .replace(/(<h3[^>]*>.*?<\/h3>)\n\[source\]\(([^)]+)\) \[npm package\]\(([^)]+)\)/g, (match, h3, href1, href2) =>
+      `${h3}\n<p><a href="${ href1 }">source</a> <a href="${ href2 }">npm package</a></p>`
+    )
+    // Pattern 2: Standalone [source] links for properties without npm packages.
+    .replace(/(<h3[^>]*>.*?<\/h3>)\n\[source\]\(([^)]+)\)(?! \[npm package\])/g, (match, h3, href) =>
+      `${h3}\n<p><a href="${ href }">source</a></p>`
+    );
+
+  const $ = cheerio.load(marky(markdown, {
+    'enableHeadingLinkIcons': false,
+    'sanitize': false
+  }));
+
+  const $header = $('h1').first().remove();
+  const version = $header.find('span').first().text().trim().slice(1);
+
+  // Auto-link Lodash method references.
+  autoLink($);
+  // Rename "_" id references to "lodash".
+  renameLodashId($);
+  // Remove docdown horizontal rules.
+  removeHorizontalRules($);
+  // Remove marky-markdown attribute additions.
+  removeMarkyAttributes($);
+  // Repair marky-markdown wrapping around headers.
+  repairMarkyHeaders($);
+  // Cleanup highlights.
+  tidyHighlights($);
+
+  const html = [
+    // Append YAML front matter.
+    '---',
+    'id: docs',
+    'layout: docs',
+    'title: Lodash Documentation',
+    'version: ' + (version || null),
+    '---',
+    '',
+    // Wrap in raw tags to avoid Liquid template tag processing.
+    '{% raw %}',
+    $.html().trim(),
+    '{% endraw %}',
+    ''
+  ].join('\n');
+
+  fs.writeFile(path.join(docPath, version + '.html'), html, util.pitch);
+}
+
+build();

package.json

@@ -1,62 +1,61 @@
 {
   "name": "lodash",
-  "version": "2.2.0",
-  "description": "A utility library delivering consistency, customization, performance, & extras.",
-  "homepage": "http://lodash.com/",
+  "version": "4.17.21",
   "license": "MIT",
-  "main": "dist/lodash.js",
-  "keywords": ["amd", "browser", "client", "customize", "functional", "server", "util"],
-  "author": "John-David Dalton <john.david.dalton@gmail.com> (http://allyoucanleet.com/)",
-  "contributors": [
-    "John-David Dalton <john.david.dalton@gmail.com> (http://allyoucanleet.com/)",
-    "Blaine Bublitz <blaine@iceddev.com> (http://iceddev.com/)",
-    "Kit Cambridge <github@kitcambridge.be> (http://kitcambridge.be/)",
-    "Mathias Bynens <mathias@qiwi.be> (http://mathiasbynens.be/)"
-  ],
-  "bugs": "https://github.com/lodash/lodash/issues",
-  "repository": { "type": "git", "url": "https://github.com/lodash/lodash.git" },
-  "engines": ["node", "rhino"],
-  "files": [
-    "LICENSE.txt",
-    "lodash.js",
-    "dist/lodash.js",
-    "dist/lodash.min.js",
-    "dist/lodash.compat.js",
-    "dist/lodash.compat.min.js",
-    "dist/lodash.underscore.js",
-    "dist/lodash.underscore.min.js"
-  ],
-  "jam": {
-    "main": "dist/lodash.compat.js",
-    "include": [
-      "LICENSE.txt",
-      "dist/lodash.js",
-      "dist/lodash.min.js",
-      "dist/lodash.compat.js",
-      "dist/lodash.compat.min.js",
-      "dist/lodash.underscore.js",
-      "dist/lodash.underscore.min.js"
-    ]
+  "private": true,
+  "main": "lodash.js",
+  "engines": {
+    "node": ">=4.0.0"
   },
-  "volo": {
-    "type": "directory",
-    "ignore": [
-      ".*",
-      "*.custom.*",
-      "*.min.*",
-      "*.template.*",
-      "*.map",
-      "*.md",
-      "lodash.js",
-      "index.js",
-      "bower.json",
-      "component.json",
-      "doc",
-      "modularize",
-      "node_modules",
-      "perf",
-      "test",
-      "vendor"
-    ]
+  "scripts": {
+    "build": "npm run build:main && npm run build:fp",
+    "build:fp": "node lib/fp/build-dist.js",
+    "build:fp-modules": "node lib/fp/build-modules.js",
+    "build:main": "node lib/main/build-dist.js",
+    "build:main-modules": "node lib/main/build-modules.js",
+    "doc": "node lib/main/build-doc github && npm run test:doc",
+    "doc:fp": "node lib/fp/build-doc",
+    "doc:site": "node lib/main/build-doc site",
+    "doc:sitehtml": "optional-dev-dependency marky-markdown@^9.0.1 && npm run doc:site && node lib/main/build-site",
+    "pretest": "npm run build",
+    "style": "npm run style:main && npm run style:fp && npm run style:perf && npm run style:test",
+    "style:fp": "jscs fp/*.js lib/**/*.js",
+    "style:main": "jscs lodash.js",
+    "style:perf": "jscs perf/*.js perf/**/*.js",
+    "style:test": "jscs test/*.js test/**/*.js",
+    "test": "npm run test:main && npm run test:fp",
+    "test:doc": "markdown-doctest doc/*.md",
+    "test:fp": "node test/test-fp",
+    "test:main": "node test/test",
+    "validate": "npm run style && npm run test"
+  },
+  "devDependencies": {
+    "async": "^2.6.3",
+    "benchmark": "^2.1.3",
+    "chalk": "^1.1.3",
+    "cheerio": "^0.22.0",
+    "codecov.io": "~0.1.6",
+    "coveralls": "^2.11.15",
+    "curl-amd": "~0.8.12",
+    "docdown": "~0.7.2",
+    "dojo": "^1.15.0",
+    "ecstatic": "^2.2.2",
+    "fs-extra": "~1.0.0",
+    "glob": "^7.1.4",
+    "istanbul": "0.4.5",
+    "jquery": "^3.4.1",
+    "jscs": "^3.0.7",
+    "lodash": "4.17.20",
+    "lodash-doc-globals": "^0.1.1",
+    "markdown-doctest": "^0.9.1",
+    "optional-dev-dependency": "^2.0.0",
+    "platform": "^1.3.3",
+    "qunit-extras": "^3.0.0",
+    "qunitjs": "^2.1.0",
+    "request": "^2.88.0",
+    "requirejs": "^2.3.6",
+    "sauce-tunnel": "^2.5.0",
+    "uglify-js": "2.7.5",
+    "webpack": "^1.14.0"
   }
 }

perf/asset/perf-ui.js

@@ -0,0 +1,112 @@
+;(function(window) {
+  'use strict';
+
+  /** The base path of the lodash builds. */
+  var basePath = '../';
+
+  /** The lodash build to load. */
+  var build = (build = /build=([^&]+)/.exec(location.search)) && decodeURIComponent(build[1]);
+
+  /** The other library to load. */
+  var other = (other = /other=([^&]+)/.exec(location.search)) && decodeURIComponent(other[1]);
+
+  /** The `ui` object. */
+  var ui = {};
+
+  /*--------------------------------------------------------------------------*/
+
+  // Initialize controls.
+  addEventListener('load', function() {
+    function eventHandler(event) {
+      var buildIndex = buildList.selectedIndex,
+          otherIndex = otherList.selectedIndex,
+          search = location.search.replace(/^\?|&?(?:build|other)=[^&]*&?/g, '');
+
+      if (event.stopPropagation) {
+        event.stopPropagation();
+      } else {
+        event.cancelBubble = true;
+      }
+      location.href =
+        location.href.split('?')[0] + '?' +
+        (search ? search + '&' : '') +
+        'build=' + (buildIndex < 0 ? build : buildList[buildIndex].value) + '&' +
+        'other=' + (otherIndex < 0 ? other : otherList[otherIndex].value);
+    }
+
+    var span1 = document.createElement('span');
+    span1.style.cssText = 'float:right';
+    span1.innerHTML =
+      '<label for="perf-build">Build: </label>' +
+      '<select id="perf-build">' +
+      '<option value="lodash">lodash (production)</option>' +
+      '</select>';
+
+    var span2 = document.createElement('span');
+    span2.style.cssText = 'float:right';
+    span2.innerHTML =
+      '<label for="perf-other">Other Library: </label>' +
+      '<select id="perf-other">' +
+      '<option value="underscore-dev">Underscore (development)</option>' +
+      '<option value="underscore">Underscore (production)</option>' +
+      '<option value="lodash">lodash</option>' +
+      '</select>';
+
+    var buildList = span1.lastChild,
+        otherList = span2.lastChild,
+        toolbar = document.getElementById('perf-toolbar');
+
+    toolbar.appendChild(span2);
+    toolbar.appendChild(span1);
+
+    buildList.selectedIndex = (function() {
+      switch (build) {
+        case 'lodash':
+        case null:                return 0;
+      }
+      return -1;
+    }());
+
+    otherList.selectedIndex = (function() {
+      switch (other) {
+        case 'underscore-dev':    return 0;
+        case 'lodash':            return 2;
+        case 'underscore':
+        case null:                return 1;
+      }
+      return -1;
+    }());
+
+    buildList.addEventListener('change', eventHandler);
+    otherList.addEventListener('change', eventHandler);
+  });
+
+  // The lodash build file path.
+  ui.buildPath = (function() {
+    var result;
+    switch (build) {
+      case null:                build  = 'lodash';
+      case 'lodash':            result = 'dist/lodash.min.js'; break;
+      default:                  return build;
+    }
+    return basePath + result;
+  }());
+
+  // The other library file path.
+  ui.otherPath = (function() {
+    var result;
+    switch (other) {
+      case 'lodash':            result = 'dist/lodash.min.js'; break;
+      case 'underscore-dev':    result = 'vendor/underscore/underscore.js'; break;
+      case null:                other  = 'underscore';
+      case 'underscore':        result = 'vendor/underscore/underscore-min.js'; break;
+      default:                  return other;
+    }
+    return basePath + result;
+  }());
+
+  ui.urlParams = { 'build': build, 'other': other };
+
+  window.ui = ui;
+
+}(this));

perf/index.html

@@ -1,82 +1,80 @@
 <!doctype html>
 <html lang="en">
-	<head>
-		<meta charset="utf-8">
-		<title>Lo-Dash Performance Suite</title>
-		<style>
-			html, body {
-				margin: 0;
-				padding: 0;
-				height: 100%;
-			}
-			applet {
-				position: absolute;
-				left: -9999em;
-			}
-			#FirebugUI {
-				top: 2em;
-			}
-			#perf-toolbar {
-				background-color: #EEE;
-				color: #5E740B;
-				font-family: "Helvetica Neue Light", "HelveticaNeue-Light", "Helvetica Neue", Calibri, Helvetica, Arial, sans-serif;
-				font-size: small;
-				padding: 0.5em 0 0.5em 2em;
-				overflow: hidden;
-			}
-		</style>
-	</head>
-	<body>
-		<div id="perf-toolbar"></div>
-		<script src="../vendor/platform.js/platform.js"></script>
-		<script src="../lodash.js"></script>
-		<script src="../vendor/benchmark.js/benchmark.js"></script>
-		<script src="../vendor/firebug-lite/src/firebug-lite-debug.js"></script>
-		<script src="perf-ui.js"></script>
-		<script>
-			document.write('<script src="' + ui.buildPath + '"><\/script>');
-		</script>
-		<script>
-			var lodash = _.noConflict();
-		</script>
-		<script>
-			document.write('<script src="' + ui.otherPath + '"><\/script>');
-		</script>
-		<script src="perf.js"></script>
-		<script>
-			(function() {
-				var measured,
-				    perfNow,
-				    begin = new Date;
+  <head>
+    <meta charset="utf-8">
+    <title>lodash Performance Suite</title>
+    <style>
+      html, body {
+        margin: 0;
+        padding: 0;
+        height: 100%;
+      }
+      #FirebugUI {
+        top: 2.5em;
+      }
+      #perf-toolbar {
+        background-color: #EEE;
+        color: #5E740B;
+        font-family: "Helvetica Neue Light", "HelveticaNeue-Light", "Helvetica Neue", Calibri, Helvetica, Arial, sans-serif;
+        font-size: small;
+        padding: 0.5em 1em 0.5em 1em;
+        overflow: hidden;
+      }
+      #perf-toolbar label {
+        display: inline-block;
+        margin-right: 0.5em;
+      }
+      #perf-toolbar span {
+        display: inline-block;
+        float: right;
+        line-height: 2.1em;
+        margin-left: 1em;
+        margin-top: 0;
+      }
+    </style>
+  </head>
+  <body>
+    <div id="perf-toolbar"></div>
+    <script src="../lodash.js"></script>
+    <script src="../node_modules/platform/platform.js"></script>
+    <script src="../node_modules/benchmark/benchmark.js"></script>
+    <script src="../vendor/firebug-lite/src/firebug-lite-debug.js"></script>
+    <script src="./asset/perf-ui.js"></script>
+    <script>
+      document.write('<script src="' + ui.buildPath + '"><\/script>');
+    </script>
+    <script>
+      var lodash = _.noConflict();
+    </script>
+    <script>
+      document.write('<script src="' + ui.otherPath + '"><\/script>');
+    </script>
+    <script src="perf.js"></script>
+    <script>
+      (function() {
+        var measured,
+            perfNow,
+            begin = new Date;
 
-				function init() {
-					var fbUI = document.getElementById('FirebugUI'),
-					    fbDoc = fbUI && (fbDoc = fbUI.contentWindow || fbUI.contentDocument).document || fbDoc,
-					    fbCommandLine = fbDoc && fbDoc.getElementById('fbCommandLine');
+        function init() {
+          var fbUI = document.getElementById('FirebugUI'),
+              fbDoc = fbUI && (fbDoc = fbUI.contentWindow || fbUI.contentDocument).document || fbDoc,
+              fbCommandLine = fbDoc && fbDoc.getElementById('fbCommandLine');
 
-					if (!fbCommandLine) {
-						return setTimeout(init, 15);
-					}
-					fbUI.style.height = (
-					  Math.max(document.documentElement.clientHeight, document.body.clientHeight) -
-					  document.getElementById('perf-toolbar').clientHeight
-					) + 'px';
+          if (!fbCommandLine) {
+            return setTimeout(init, 15);
+          }
+          fbUI.style.height = (
+            Math.max(document.documentElement.clientHeight, document.body.clientHeight) -
+            document.getElementById('perf-toolbar').clientHeight
+          ) + 'px';
 
-					fbDoc.body.style.height = fbDoc.documentElement.style.height = '100%';
-					setTimeout(run, 15);
-				}
+          fbDoc.body.style.height = fbDoc.documentElement.style.height = '100%';
+          setTimeout(run, 15);
+        }
 
-				// is the applet permitted?
-				if (!/[?&]nojava=true(?:&|$)/.test(location.search)) {
-					// is the applet really needed?
-					while (!(measured = new Date - begin)) { }
-					if (measured != 1 && !((perfNow = window.performance) && typeof (perfNow.now || perfNow.webkitNow) == 'function')) {
-						// load applet
-						document.write('<applet code="nano" archive="../vendor/benchmark.js/nano.jar"></applet>');
-					}
-				}
-				window.onload = init;
-			}());
-		</script>
-	</body>
+        window.onload = init;
+      }());
+    </script>
+  </body>
 </html>

perf/perf-ui.js

@@ -1,172 +0,0 @@
-;(function(window) {
-  'use strict';
-
-  /** The base path of the builds */
-  var basePath = '../';
-
-  /** The Lo-Dash build to load */
-  var build = (build = /build=([^&]+)/.exec(location.search)) && decodeURIComponent(build[1]);
-
-  /** The other library to load */
-  var other = (other = /other=([^&]+)/.exec(location.search)) && decodeURIComponent(other[1]);
-
-  /** The `ui` object */
-  var ui = {};
-
-  /*--------------------------------------------------------------------------*/
-
-  /**
-   * Registers an event listener on an element.
-   *
-   * @private
-   * @param {Element} element The element.
-   * @param {string} eventName The name of the event.
-   * @param {Function} handler The event handler.
-   * @returns {Element} The element.
-   */
-  function addListener(element, eventName, handler) {
-    if (typeof element.addEventListener != 'undefined') {
-      element.addEventListener(eventName, handler, false);
-    } else if (typeof element.attachEvent != 'undefined') {
-      element.attachEvent('on' + eventName, handler);
-    }
-  }
-
-  /*--------------------------------------------------------------------------*/
-
-  // expose `ui.urlParams` properties
-  ui.urlParams = {
-    'build': build,
-    'other': other
-  };
-
-  // expose Lo-Dash build file path
-  ui.buildPath = (function() {
-    var result;
-    switch (build) {
-      case 'lodash-compat':     result = 'dist/lodash.compat.min.js'; break;
-      case 'lodash-legacy':     result = 'dist/lodash.legacy.min.js'; break;
-      case 'lodash-mobile':     result = 'dist/lodash.mobile.min.js'; break;
-      case 'lodash-underscore': result = 'dist/lodash.underscore.min.js'; break;
-      case 'lodash-custom-dev': result = 'lodash.custom.js'; break;
-      case 'lodash-custom':     result = 'lodash.custom.min.js'; break;
-      case 'lodash-modern':
-      case null:                result = 'dist/lodash.min.js'; break;
-      default:                  return build;
-    }
-    return basePath + result;
-  }());
-
-  // expose other library file path
-  ui.otherPath = (function() {
-    var result;
-    switch (other) {
-      case 'lodash-compat':     result = 'dist/lodash.compat.min.js'; break;
-      case 'lodash-legacy':     result = 'dist/lodash.legacy.min.js'; break;
-      case 'lodash-mobile':     result = 'dist/lodash.mobile.min.js'; break;
-      case 'lodash-modern':     result = 'dist/lodash.min.js'; break;
-      case 'lodash-underscore': result = 'dist/lodash.underscore.min.js'; break;
-      case 'lodash-custom-dev': result = 'lodash.custom.js'; break;
-      case 'lodash-custom':     result = 'lodash.custom.min.js'; break;
-      case 'underscore-dev':    result = 'vendor/underscore/underscore.js'; break;
-      case 'underscore':
-      case null:                result = 'vendor/underscore/underscore-min.js'; break;
-      default:                  return other;
-    }
-    return basePath + result;
-  }());
-
-  // initialize controls
-  addListener(window, 'load', function() {
-    function eventHandler(event) {
-      var buildIndex = buildList.selectedIndex,
-          otherIndex = otherList.selectedIndex,
-          search = location.search.replace(/^\?|&?(?:build|other)=[^&]*&?/g, '');
-
-      if (event.stopPropagation) {
-        event.stopPropagation();
-      } else {
-        event.cancelBubble = true;
-      }
-      location.href =
-        location.href.split('?')[0] + '?' +
-        (search ? search + '&' : '') +
-        'build=' + (buildIndex < 0 ? build : buildList[buildIndex].value) + '&' +
-        'other=' + (otherIndex < 0 ? other : otherList[otherIndex].value);
-    }
-
-    var span1 = document.createElement('span');
-    span1.style.cssText = 'float:right';
-    span1.innerHTML =
-      '<label for="perf-build">Build: </label>' +
-      '<select id="perf-build">' +
-      '<option value="lodash-compat">Lo-Dash (compat)</option>' +
-      '<option value="lodash-legacy">Lo-Dash (legacy)</option>' +
-      '<option value="lodash-mobile">Lo-Dash (mobile)</option>' +
-      '<option value="lodash-modern">Lo-Dash (modern)</option>' +
-      '<option value="lodash-underscore">Lo-Dash (underscore)</option>' +
-      '<option value="lodash-custom-dev">Lo-Dash (custom development)</option>' +
-      '<option value="lodash-custom">Lo-Dash (custom production)</option>' +
-      '</select>';
-
-    var span2 = document.createElement('span');
-    span2.style.cssText = 'float:right';
-    span2.innerHTML =
-      '<label for="perf-other">Other Library: </label>' +
-      '<select id="perf-other">' +
-      '<option value="underscore-dev">Underscore (development)</option>' +
-      '<option value="underscore">Underscore (production)</option>' +
-      '<option value="lodash-compat">Lo-Dash (compat)</option>' +
-      '<option value="lodash-legacy">Lo-Dash (legacy)</option>' +
-      '<option value="lodash-mobile">Lo-Dash (mobile)</option>' +
-      '<option value="lodash-modern">Lo-Dash (modern)</option>' +
-      '<option value="lodash-underscore">Lo-Dash (underscore)</option>' +
-      '<option value="lodash-custom-dev">Lo-Dash (custom development)</option>' +
-      '<option value="lodash-custom">Lo-Dash (custom production)</option>' +
-      '</select>';
-
-    var buildList = span1.lastChild,
-        otherList = span2.lastChild,
-        toolbar = document.getElementById('perf-toolbar');
-
-    toolbar.appendChild(span2);
-    toolbar.appendChild(span1);
-
-    buildList.selectedIndex = (function() {
-      switch (build) {
-        case 'lodash-compat':     return 0;
-        case 'lodash-legacy':     return 1;
-        case 'lodash-mobile':     return 2;
-        case 'lodash-underscore': return 4;
-        case 'lodash-custom-dev': return 5;
-        case 'lodash-custom':     return 6;
-        case 'lodash-modern':
-        case null:                return 3;
-      }
-      return -1;
-    }());
-
-    otherList.selectedIndex = (function() {
-      switch (other) {
-        case 'underscore-dev':    return 0;
-        case 'lodash-compat':     return 2;
-        case 'lodash-legacy':     return 3;
-        case 'lodash-mobile':     return 4;
-        case 'lodash-modern':     return 5;
-        case 'lodash-underscore': return 6;
-        case 'lodash-custom-dev': return 7;
-        case 'lodash-custom':     return 8;
-        case 'underscore':
-        case null:                return 1;
-      }
-      return -1;
-    }());
-
-    addListener(buildList, 'change', eventHandler);
-    addListener(otherList, 'change', eventHandler);
-  });
-
-  // expose `ui`
-  window.ui = ui;
-
-}(this));

perf/run-perf.sh

@@ -1,14 +0,0 @@
-cd "$(dirname "$0")"
-
-echo "Running performance suite in node..."
-node perf.js ../dist/lodash.js && node perf.js ../dist/lodash.min.js
-
-for cmd in rhino "rhino -require" narwhal ringo phantomjs; do
-  echo ""
-  echo "Running performance suite in $cmd..."
-  $cmd perf.js ../dist/lodash.compat.js && $cmd perf.js ../dist/lodash.compat.min.js
-done
-
-echo ""
-echo "Running performance suite in a browser..."
-open index.html

playwright.config.js

@@ -0,0 +1,28 @@
+const { devices } = require('@playwright/test');
+
+module.exports = {
+    retries: 0,
+    testDir: './test',
+    testMatch: '**/*.spec.js',
+    use: {
+        baseURL: 'http://localhost:9001',
+        headless: true,
+    },
+    projects: [
+        { name: 'Chromium', use: { browserName: 'chromium' } },
+        { name: 'Firefox', use: { browserName: 'firefox' } },
+        { name: 'WebKit', use: { browserName: 'webkit' } },
+        {
+            name: 'Microsoft Edge',
+            use: { browserName: 'chromium', channel: 'msedge' },
+        },
+        {
+            name: 'Mobile Safari',
+            use: { ...devices['iPhone 12'], browserName: 'webkit' },
+        },
+        {
+            name: 'Mobile Chrome',
+            use: { ...devices['Pixel 5'], browserName: 'chromium' },
+        },
+    ],
+};

renovate.json

@@ -0,0 +1,17 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "config:base"
+  ],
+  "enabledManagers": ["npm", "github-actions"],
+  "packageRules": [
+    {
+      "matchManagers": ["npm"],
+      "matchUpdateTypes": ["major"],
+      "enabled": false
+    }
+  ],
+  "prHourlyLimit": 0,
+  "prConcurrentLimit": 10,
+  "minimumReleaseAge": "14d"
+}

test/asset/test-ui.js

@@ -0,0 +1,155 @@
+;(function(window) {
+  'use strict';
+
+  /** The base path of the lodash builds. */
+  var basePath = '../';
+
+  /** The lodash build to load. */
+  var build = (build = /build=([^&]+)/.exec(location.search)) && decodeURIComponent(build[1]);
+
+  /** The module loader to use. */
+  var loader = (loader = /loader=([^&]+)/.exec(location.search)) && decodeURIComponent(loader[1]);
+
+  /** The `ui` object. */
+  var ui = {};
+
+  /*--------------------------------------------------------------------------*/
+
+  // Initialize controls.
+  addEventListener('load', function() {
+    function eventHandler(event) {
+      var buildIndex = buildList.selectedIndex,
+          loaderIndex = loaderList.selectedIndex,
+          search = location.search.replace(/^\?|&?(?:build|loader)=[^&]*&?/g, '');
+
+      if (event.stopPropagation) {
+        event.stopPropagation();
+      } else {
+        event.cancelBubble = true;
+      }
+      location.href =
+        location.href.split('?')[0] + '?' +
+        (search ? search + '&' : '') +
+        'build=' + (buildIndex < 0 ? build : buildList[buildIndex].value) + '&' +
+        'loader=' + (loaderIndex < 0 ? loader : loaderList[loaderIndex].value);
+    }
+
+    function init() {
+      var toolbar = document.getElementById('qunit-testrunner-toolbar');
+      if (!toolbar) {
+        setTimeout(init, 15);
+        return;
+      }
+      toolbar.insertBefore(span2, toolbar.lastChild);
+      toolbar.insertBefore(span1, span2);
+
+      buildList.selectedIndex = (function() {
+        switch (build) {
+          case 'lodash':            return 1;
+          case 'lodash-core-dev':   return 2;
+          case 'lodash-core':       return 3;
+          case 'lodash-dev':
+          case null:                return 0;
+        }
+        return -1;
+      }());
+
+      loaderList.selectedIndex = (function() {
+        switch (loader) {
+          case 'curl':      return 1;
+          case 'dojo':      return 2;
+          case 'requirejs': return 3;
+          case 'none':
+          case null:        return 0;
+        }
+        return -1;
+      }());
+
+      buildList.addEventListener('change', eventHandler);
+      loaderList.addEventListener('change', eventHandler);
+    }
+
+    var span1 = document.createElement('span');
+    span1.innerHTML =
+      '<label for="qunit-build">Build: </label>' +
+      '<select id="qunit-build">' +
+      '<option value="lodash-dev">lodash (development)</option>' +
+      '<option value="lodash">lodash (production)</option>' +
+      '<option value="lodash-core-dev">lodash-core (development)</option>' +
+      '<option value="lodash-core">lodash-core (production)</option>' +
+      '</select>';
+
+    var span2 = document.createElement('span');
+    span2.innerHTML =
+      '<label for="qunit-loader">Loader: </label>' +
+      '<select id="qunit-loader">' +
+      '<option value="none">None</option>' +
+      '<option value="curl">Curl</option>' +
+      '<option value="dojo">Dojo</option>' +
+      '<option value="requirejs">RequireJS</option>' +
+      '</select>';
+
+    span1.style.cssText =
+    span2.style.cssText = 'display:inline-block;float:right;line-height:2.1em;margin-left:1em;margin-top:0;';
+
+    span1.firstChild.style.cssText =
+    span2.firstChild.style.cssText = 'display:inline-block;margin-right:.5em;';
+
+    var buildList = span1.lastChild,
+        loaderList = span2.lastChild;
+
+    setTimeout(function() {
+      ui.timing.loadEventEnd = +new Date;
+    }, 1);
+
+    init();
+  });
+
+  // The lodash build file path.
+  ui.buildPath = (function() {
+    var result;
+    switch (build) {
+      case 'lodash':            result = 'dist/lodash.min.js'; break;
+      case 'lodash-core-dev':   result = 'dist/lodash.core.js'; break;
+      case 'lodash-core':       result = 'dist/lodash.core.min.js'; break;
+      case null:                build  = 'lodash-dev';
+      case 'lodash-dev':        result = 'lodash.js'; break;
+      default:                  return build;
+    }
+    return basePath + result;
+  }());
+
+  // The module loader file path.
+  ui.loaderPath = (function() {
+    var result;
+    switch (loader) {
+      case 'curl':      result = 'node_modules/curl-amd/dist/curl-kitchen-sink/curl.js'; break;
+      case 'dojo':      result = 'node_modules/dojo/dojo.js'; break;
+      case 'requirejs': result = 'node_modules/requirejs/require.js'; break;
+      case null:        loader = 'none'; return '';
+      default:          return loader;
+    }
+    return basePath + result;
+  }());
+
+  // Used to indicate testing a core build.
+  ui.isCore = /\bcore(\.min)?\.js\b/.test(ui.buildPath);
+
+  // Used to indicate testing a foreign file.
+  ui.isForeign = RegExp('^(\\w+:)?//').test(build);
+
+  // Used to indicate testing a modularized build.
+  ui.isModularize = /\b(?:amd|commonjs|es|node|npm|(index|main)\.js)\b/.test([location.pathname, location.search]);
+
+  // Used to indicate testing in Sauce Labs' automated test cloud.
+  ui.isSauceLabs = location.port == '9001';
+
+  // Used to indicate that lodash is in strict mode.
+  ui.isStrict = /\bes\b/.test([location.pathname, location.search]);
+
+  ui.urlParams = { 'build': build, 'loader': loader };
+  ui.timing = { 'loadEventEnd': 0 };
+
+  window.ui = ui;
+
+}(this));

test/asset/worker.js

@@ -0,0 +1,17 @@
+'use strict';
+
+self.console || (self.console = { 'log': function() {} });
+
+addEventListener('message', function(e) {
+  if (e.data) {
+    try {
+      importScripts('../' + e.data);
+    } catch (e) {
+      var lineNumber = e.lineNumber,
+          message = (lineNumber == null ? '' : (lineNumber + ': ')) + e.message;
+
+      self._ = { 'VERSION': message };
+    }
+    postMessage(_.VERSION);
+  }
+});

test/backbone.html

@@ -1,47 +1,170 @@
 <!doctype html>
 <html lang="en">
-	<head>
-		<meta charset="utf-8">
-		<title>Backbone Test Suite</title>
-		<link rel="stylesheet" href="../vendor/qunit/qunit/qunit.css">
-		<style>
-			body > #qunit-header {
-				display: none;
-			}
-		</style>
-	</head>
-	<body>
-		<div id="qunit"></div>
-		<h1 id="qunit-header"></h1>
-		<div id="qunit-fixture">
-			<div id='testElement'>
-				<h1>Test</h1>
-			</div>
-		</div>
-		<script src="../vendor/json-js/json2.js"></script>
-		<script src="../vendor/jquery/jquery.js"></script>
-		<script src="../vendor/platform.js/platform.js"></script>
-		<script src="../vendor/qunit/qunit/qunit.js"></script>
-		<script src="test-ui.js"></script>
-		<script src="../lodash.js"></script>
-		<script>
-			var lodash = _.noConflict();
-			document.write('<script src="' + ui.buildPath + '"><\/script>');
-		</script>
-		<script>
-			_.mixin({
-				'debounce': _.debounce || lodash.debounce,
-				'defer': _.defer || lodash.defer
-			});
-		</script>
-		<script src="../vendor/backbone/backbone.js"></script>
-		<script src="../vendor/backbone/test/environment.js"></script>
-		<script src="../vendor/backbone/test/noconflict.js"></script>
-		<script src="../vendor/backbone/test/events.js"></script>
-		<script src="../vendor/backbone/test/model.js"></script>
-		<script src="../vendor/backbone/test/collection.js"></script>
-		<script src="../vendor/backbone/test/router.js"></script>
-		<script src="../vendor/backbone/test/view.js"></script>
-		<script src="../vendor/backbone/test/sync.js"></script>
-	</body>
+  <head>
+    <meta charset="utf-8">
+    <title>Backbone Test Suite</title>
+    <link rel="stylesheet" href="../node_modules/qunitjs/qunit/qunit.css">
+  </head>
+  <body>
+    <script>
+      // Avoid reporting tests to Sauce Labs when script errors occur.
+      if (location.port == '9001') {
+        window.onerror = function(message) {
+          if (window.QUnit) {
+            QUnit.config.done.length = 0;
+          }
+          global_test_results = { 'message': message };
+        };
+      }
+    </script>
+    <script src="../node_modules/qunitjs/qunit/qunit.js"></script>
+    <script src="../node_modules/qunit-extras/qunit-extras.js"></script>
+    <script src="../vendor/json-js/json2.js"></script>
+    <script src="../node_modules/platform/platform.js"></script>
+    <script src="./asset/test-ui.js"></script>
+    <script src="../lodash.js"></script>
+    <script>
+      QUnit.config.asyncRetries = 10;
+      QUnit.config.hidepassed = true;
+
+      var mixinPrereqs = (function() {
+        var aliasToReal = {
+          'indexBy': 'keyBy',
+          'invoke': 'invokeMap'
+        };
+
+        var keyMap = {
+          'rest': 'tail'
+        };
+
+        var lodash = _.noConflict();
+
+        return function(_) {
+          lodash(_)
+            .defaultsDeep({ 'templateSettings': lodash.templateSettings })
+            .mixin(lodash.pick(lodash, lodash.difference([
+              'countBy',
+              'debounce',
+              'difference',
+              'find',
+              'findIndex',
+              'findLastIndex',
+              'groupBy',
+              'includes',
+              'invert',
+              'invokeMap',
+              'keyBy',
+              'omit',
+              'partition',
+              'reduceRight',
+              'reject',
+              'sample',
+              'without'
+            ], lodash.functions(_))))
+            .value();
+
+          lodash.forOwn(keyMap, function(realName, otherName) {
+            _[otherName] = lodash[realName];
+            _.prototype[otherName] = lodash.prototype[realName];
+          });
+          lodash.forOwn(aliasToReal, function(realName, alias) {
+            _[alias] = _[realName];
+            _.prototype[alias] = _.prototype[realName];
+          });
+          return _;
+        };
+      }());
+
+      // Load prerequisite scripts.
+      document.write(ui.urlParams.loader == 'none'
+        ? '<script src="' + ui.buildPath + '"><\/script>'
+        : '<script data-dojo-config="async:1" src="' + ui.loaderPath + '"><\/script>'
+      );
+    </script>
+    <script>
+      if (ui.urlParams.loader == 'none') {
+        mixinPrereqs(_);
+        document.write([
+          '<script src="../node_modules/jquery/dist/jquery.js"><\/script>',
+          '<script src="../vendor/backbone/backbone.js"><\/script>',
+          '<script src="../vendor/backbone/test/setup/dom-setup.js"><\/script>',
+          '<script src="../vendor/backbone/test/setup/environment.js"><\/script>',
+          '<script src="../vendor/backbone/test/noconflict.js"><\/script>',
+          '<script src="../vendor/backbone/test/events.js"><\/script>',
+          '<script src="../vendor/backbone/test/model.js"><\/script>',
+          '<script src="../vendor/backbone/test/collection.js"><\/script>',
+          '<script src="../vendor/backbone/test/router.js"><\/script>',
+          '<script src="../vendor/backbone/test/view.js"><\/script>',
+          '<script src="../vendor/backbone/test/sync.js"><\/script>'
+        ].join('\n'));
+      }
+    </script>
+    <script>
+      (function() {
+        if (window.curl) {
+          curl.config({ 'apiName': 'require' });
+        }
+        if (!window.require) {
+          return;
+        }
+        var reBasename = /[\w.-]+$/,
+            basePath = ('//' + location.host + location.pathname.replace(reBasename, '')).replace(/\btest\/$/, ''),
+            modulePath = ui.buildPath.replace(/\.js$/, ''),
+            locationPath = modulePath.replace(reBasename, '').replace(/^\/|\/$/g, ''),
+            moduleMain = modulePath.match(reBasename)[0],
+            uid = +new Date;
+
+        function getConfig() {
+          var result = {
+            'baseUrl': './',
+            'urlArgs': 't=' + uid++,
+            'waitSeconds': 0,
+            'paths': {
+              'backbone': '../vendor/backbone/backbone',
+              'jquery': '../node_modules/jquery/dist/jquery'
+            },
+            'packages': [{
+              'name': 'test',
+              'location': '../vendor/backbone/test',
+              'config': {
+                // Work around no global being exported.
+                'exports': 'QUnit',
+                'loader': 'curl/loader/legacy'
+              }
+            }]
+          };
+
+          if (ui.isModularize) {
+            result.packages.push({
+              'name': 'underscore',
+              'location': locationPath,
+              'main': moduleMain
+            });
+          } else {
+            result.paths.underscore = modulePath;
+          }
+          return result;
+        }
+
+        QUnit.config.autostart = false;
+
+        require(getConfig(), ['underscore'], function(lodash) {
+          _ = mixinPrereqs(lodash);
+          require(getConfig(), ['backbone'], function() {
+            require(getConfig(), [
+              'test/setup/dom-setup',
+              'test/setup/environment',
+              'test/noconflict',
+              'test/events',
+              'test/model',
+              'test/collection',
+              'test/router',
+              'test/view',
+              'test/sync'
+            ], QUnit.start);
+          });
+        });
+      }());
+    </script>
+  </body>
 </html>

test/fp.html

@@ -0,0 +1,41 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8">
+    <title>lodash-fp Test Suite</title>
+    <link rel="stylesheet" href="../node_modules/qunitjs/qunit/qunit.css">
+  </head>
+  <body>
+    <script>
+      // Avoid reporting tests to Sauce Labs when script errors occur.
+      if (location.port == '9001') {
+        window.onerror = function(message) {
+          if (window.QUnit) {
+            QUnit.config.done.length = 0;
+          }
+          global_test_results = { 'message': message };
+        };
+      }
+    </script>
+    <script src="../lodash.js"></script>
+    <script src="../dist/lodash.fp.js"></script>
+    <script src="../dist/mapping.fp.js"></script>
+    <script src="../node_modules/qunitjs/qunit/qunit.js"></script>
+    <script src="../node_modules/qunit-extras/qunit-extras.js"></script>
+    <script src="../node_modules/platform/platform.js"></script>
+    <script src="./test-fp.js"></script>
+    <div id="qunit"></div>
+    <script>
+      // Set a more readable browser name.
+      window.onload = function() {
+        var timeoutId = setInterval(function() {
+          var ua = document.getElementById('qunit-userAgent');
+          if (ua) {
+            ua.innerHTML = platform;
+            clearInterval(timeoutId);
+          }
+        }, 16);
+      };
+    </script>
+  </body>
+</html>

test/index.html

@@ -1,166 +1,341 @@
 <!doctype html>
 <html lang="en">
-	<head>
-		<meta charset="utf-8">
-		<title>Lo-Dash Test Suite</title>
-		<link rel="stylesheet" href="../vendor/qunit/qunit/qunit.css">
-		<style>
-			#exports {
-				display: none;
-			}
-		</style>
-	</head>
-	<body>
-		<script src="../vendor/qunit/qunit/qunit.js"></script>
-		<script src="../vendor/platform.js/platform.js"></script>
-		<script src="test-ui.js"></script>
-		<div id="qunit"></div>
-		<div id="exports"></div>
-		<script>
-			// set bad shims
-			Array._isArray = Array.isArray;
-			Array.isArray = function() { return false; };
+  <head>
+    <meta charset="utf-8">
+    <title>lodash Test Suite</title>
+    <link rel="stylesheet" href="../node_modules/qunitjs/qunit/qunit.css">
+    <style>
+      #exports, #module {
+        display: none;
+      }
+    </style>
+  </head>
+  <body>
+    <script>
+      // Avoid reporting tests to Sauce Labs when script errors occur.
+      if (location.port == '9001') {
+        window.onerror = function(message) {
+          if (window.QUnit) {
+            QUnit.config.done.length = 0;
+          }
+          global_test_results = { 'message': message };
+        };
+      }
+    </script>
+    <script src="../node_modules/lodash/lodash.js"></script>
+    <script>var lodashStable = _.noConflict();</script>
+    <script src="../node_modules/qunitjs/qunit/qunit.js"></script>
+    <script src="../node_modules/qunit-extras/qunit-extras.js"></script>
+    <script src="../node_modules/platform/platform.js"></script>
+    <script src="./asset/test-ui.js"></script>
+    <div id="qunit"></div>
+    <div id="exports"></div>
+    <div id="module"></div>
+    <script>
+      function setProperty(object, key, value) {
+        try {
+          Object.defineProperty(object, key, {
+            'configurable': true,
+            'enumerable': false,
+            'writable': true,
+            'value': value
+          });
+        } catch (e) {
+          object[key] = value;
+        }
+        return object;
+      }
 
-			Function.prototype._bind = Function.prototype.bind;
-			Function.prototype.bind = function() { return function() {}; };
+      function addBizarroMethods() {
+        var funcProto = Function.prototype,
+            objectProto = Object.prototype;
 
-			Object._defineProperty = Object.defineProperty;
-			Object.defineProperty = function() {};
+        var hasOwnProperty = objectProto.hasOwnProperty,
+            fnToString = funcProto.toString,
+            nativeString = fnToString.call(objectProto.toString),
+            noop = function() {},
+            propertyIsEnumerable = objectProto.propertyIsEnumerable,
+            reToString = /toString/g;
 
-			Object._keys = Object.keys;
-			Object.keys = function() { return []; };
+        function constant(value) {
+          return function() {
+            return value;
+          };
+        }
 
-			// load Lo-Dash and expose it to the bad `Object.keys` shim
-			document.write('<script src="' + (ui.isModularize ? '../lodash.js' : ui.buildPath) + '"><\/script>');
-		</script>
-		<script>
-			// store Lo-Dash to test for bad shim detection
-			var lodashBadShim = window._;
+        function createToString(funcName) {
+          return constant(nativeString.replace(reToString, funcName));
+        }
 
-			// restore native methods
-			if (Array._isArray) {
-				Array.isArray = Array._isArray;
-			} else {
-				delete Array.isArray;
-			}
-			if (Function.prototype._bind) {
-				Function.prototype.bind = Function.prototype._bind;
-			} else {
-				delete Function.prototype.bind;
-			}
-			if (Object._defineProperty) {
-				Object.defineProperty = Object._defineProperty;
-			} else {
-				delete Object.defineProperty;
-			}
-			if (Object._keys) {
-				Object.keys = Object._keys;
-			} else {
-				delete Object.keys;
-			}
-			delete Array._isArray;
-			delete Function.prototype._bind;
-			delete Object._defineProperty;
-			delete Object._keys;
+        // Allow bypassing native checks.
+        setProperty(funcProto, 'toString', (function() {
+          function wrapper() {
+            setProperty(funcProto, 'toString', fnToString);
+            var result = hasOwnProperty.call(this, 'toString') ? this.toString() : fnToString.call(this);
+            setProperty(funcProto, 'toString', wrapper);
+            return result;
+          }
+          return wrapper;
+        }()));
 
-			// load Lo-Dash again to overwrite the existing `_` value
-			document.write('<script src="' + (ui.isModularize ? '../lodash.js' : ui.buildPath) + '"><\/script>');
+        // Add prototype extensions.
+        funcProto._method = noop;
 
-			// load test.js if not using require.js
-			document.write(ui.urlParams.loader == 'none'
-				? '<script src="test.js"><\/script>'
-				: '<script data-dojo-config="async:1" src="' + ui.loaderPath + '"><\/script>'
-			);
-		</script>
-		<script>
-			var lodashModule,
-			    shimmedModule,
-			    underscoreModule;
+        // Set bad shims.
+        setProperty(Object, '_create', Object.create);
+        setProperty(Object, 'create', undefined);
 
-			(function() {
-				if (window.curl) {
-					curl.config({ 'apiName': 'require' });
-				}
-				if (!window.require) {
-					return;
-				}
-				var reBasename = /[\w.-]+$/,
-				    basePath = ('//' + location.host + location.pathname.replace(reBasename, '')).replace(/\btest\/$/, ''),
-				    modulePath = ui.buildPath.replace(/\.js$/, ''),
-				    locationPath = modulePath.replace(reBasename, ''),
-				    moduleMain = modulePath.match(reBasename)[0];
+        setProperty(Object, '_getOwnPropertySymbols', Object.getOwnPropertySymbols);
+        setProperty(Object, 'getOwnPropertySymbols', undefined);
 
-				QUnit.config.autostart = false;
+        setProperty(objectProto, '_propertyIsEnumerable', propertyIsEnumerable);
+        setProperty(objectProto, 'propertyIsEnumerable', function(key) {
+          return !(key == 'valueOf' && this && this.valueOf === 1) && _propertyIsEnumerable.call(this, key);
+        });
 
-				// load Lo-Dash as a module
-				require({
-					'baseUrl': './',
-					'urlArgs': 't=' + (+new Date),
-					'packages': [
-						{
-							'name': 'lodash',
-							'location': locationPath,
-							'main': moduleMain
-						},
-						{
-							'name': 'shimmed',
-							'location': './abc/../' + locationPath,
-							'main': moduleMain
-						},
-						{
-							'name': 'underscore',
-							'location': './xyz/../' + locationPath,
-							'main': moduleMain
-						},
-						{
-							'name': 'test',
-							'location': basePath + '/test',
-							'main': 'test',
-							'config': {
-								// work around no global being exported
-								'exports': 'QUnit',
-								'loader': 'curl/loader/legacy'
-							}
-						}
-					],
-					'shim': {
-						'shimmed': {
-							'exports': '_'
-						}
-					}
-				},
-				['lodash', 'shimmed', 'underscore'], function(lodash, shimmed, underscore) {
-					if (shimmed && shimmed.noConflict) {
-						shimmedModule = shimmed.noConflict();
-						shimmedModule.moduleName = 'shimmed';
-					}
-					if (underscore && underscore.noConflict) {
-						underscoreModule = underscore.noConflict();
-						underscoreModule.moduleName = 'underscore';
-					}
-					if (lodash && lodash.noConflict) {
-						lodashModule = lodash.noConflict();
-						lodashModule.moduleName = 'lodash';
-					}
-					if (ui.isModularize) {
-						window._ = lodash;
-					}
-					require(['test'], function() {
-						QUnit.start();
-					});
-				});
-			}());
+        setProperty(window, '_Map', window.Map);
+        if (_Map) {
+          setProperty(window, 'Map', (function(Map) {
+            var count = 0;
+            return function() {
+              if (count++) {
+                return new Map;
+              }
+              var result = {};
+              setProperty(window, 'Map', Map);
+              return result;
+            };
+          }(_Map)));
 
-			// set a more readable browser name
-			window.onload = function() {
-				var timeoutId = setInterval(function() {
-					var ua = document.getElementById('qunit-userAgent');
-					if (ua) {
-						ua.innerHTML = platform;
-						clearInterval(timeoutId);
-					}
-				}, 16);
-			};
-		</script>
-	</body>
+          setProperty(Map, 'toString', createToString('Map'));
+        }
+        setProperty(window, '_Promise', window.Promise);
+        setProperty(window, 'Promise', noop);
+
+        setProperty(window, '_Set', window.Set);
+        setProperty(window, 'Set', noop);
+
+        setProperty(window, '_Symbol', window.Symbol);
+        setProperty(window, 'Symbol', undefined);
+
+        setProperty(window, '_WeakMap', window.WeakMap);
+        setProperty(window, 'WeakMap', noop);
+
+        // Fake `WinRTError`.
+        setProperty(window, 'WinRTError', Error);
+
+        // Fake free variable `global`.
+        setProperty(window, 'exports', window);
+        setProperty(window, 'global', window);
+        setProperty(window, 'module', {});
+      }
+
+      function removeBizarroMethods() {
+        var funcProto = Function.prototype,
+            objectProto = Object.prototype;
+
+        setProperty(objectProto, 'propertyIsEnumerable', objectProto._propertyIsEnumerable);
+
+        if (Object._create) {
+          Object.create = Object._create;
+        } else {
+          delete Object.create;
+        }
+        if (Object._getOwnPropertySymbols) {
+          Object.getOwnPropertySymbols = Object._getOwnPropertySymbols;
+        } else {
+          delete Object.getOwnPropertySymbols;
+        }
+        if (_Map) {
+          Map = _Map;
+        } else {
+          setProperty(window, 'Map', undefined);
+        }
+        if (_Promise) {
+          Promise = _Promise;
+        } else {
+          setProperty(window, 'Promise', undefined);
+        }
+        if (_Set) {
+          Set = _Set;
+        } else {
+          setProperty(window, 'Set', undefined);
+        }
+        if (_Symbol) {
+          Symbol = _Symbol;
+        }
+        if (_WeakMap) {
+          WeakMap = _WeakMap;
+        } else {
+          setProperty(window, 'WeakMap', undefined);
+        }
+        setProperty(window, '_Map', undefined);
+        setProperty(window, '_Promise', undefined);
+        setProperty(window, '_Set', undefined);
+        setProperty(window, '_Symbol', undefined);
+        setProperty(window, '_WeakMap', undefined);
+
+        setProperty(window, 'WinRTError', undefined);
+
+        setProperty(window, 'exports', document.getElementById('exports'));
+        setProperty(window, 'global', undefined);
+        setProperty(window, 'module', document.getElementById('module'));
+
+        delete funcProto._method;
+        delete Object._create;
+        delete Object._getOwnPropertySymbols;
+        delete objectProto._propertyIsEnumerable;
+      }
+
+      // Load lodash to expose it to the bad extensions/shims.
+      if (!ui.isModularize) {
+        addBizarroMethods();
+        document.write('<script src="' + ui.buildPath + '"><\/script>');
+      }
+    </script>
+    <script>
+      // Store lodash to test for bad extensions/shims.
+      if (!ui.isModularize) {
+        var lodashBizarro = window._;
+        window._ = undefined;
+        removeBizarroMethods();
+      }
+      // Load test scripts.
+      document.write((ui.isForeign || ui.urlParams.loader == 'none')
+        ? '<script src="' + ui.buildPath + '"><\/script><script src="test.js"><\/script>'
+        : '<script data-dojo-config="async:1" src="' + ui.loaderPath + '"><\/script>'
+      );
+    </script>
+    <script>
+      var lodashModule,
+          shimmedModule,
+          underscoreModule;
+
+      (function() {
+        if (window.curl) {
+          curl.config({ 'apiName': 'require' });
+        }
+        if (ui.isForeign || !window.require) {
+          return;
+        }
+        var reBasename = /[\w.-]+$/,
+            basePath = ('//' + location.host + location.pathname.replace(reBasename, '')).replace(/\btest\/$/, ''),
+            modulePath = ui.buildPath.replace(/\.js$/, ''),
+            moduleMain = modulePath.match(reBasename)[0],
+            locationPath = modulePath.replace(reBasename, '').replace(/^\/|\/$/g, ''),
+            shimmedLocationPath = './abc/../' + locationPath,
+            underscoreLocationPath = './xyz/../' + locationPath,
+            uid = +new Date;
+
+        function getConfig() {
+          var result = {
+            'baseUrl': './',
+            'urlArgs': 't=' + uid++,
+            'waitSeconds': 0,
+            'paths': {},
+            'packages': [{
+              'name': 'test',
+              'location': basePath + 'test',
+              'main': 'test',
+              'config': {
+                // Work around no global being exported.
+                'exports': 'QUnit',
+                'loader': 'curl/loader/legacy'
+              }
+            }],
+            'shim': {
+              'shimmed': {
+                'exports': '_'
+              }
+            }
+          };
+
+          if (ui.isModularize) {
+            result.packages.push({
+              'name': 'lodash',
+              'location': locationPath,
+              'main': moduleMain
+            }, {
+              'name': 'shimmed',
+              'location': shimmedLocationPath,
+              'main': moduleMain
+            }, {
+              'name': 'underscore',
+              'location': underscoreLocationPath,
+              'main': moduleMain
+            });
+          } else {
+            result.paths.lodash = modulePath;
+            result.paths.shimmed = shimmedLocationPath + '/' + moduleMain;
+            result.paths.underscore = underscoreLocationPath + '/' + moduleMain;
+          }
+          return result;
+        }
+
+        function loadTests() {
+          require(getConfig(), ['test'], function() {
+            QUnit.start();
+          });
+        }
+
+        function loadModulesAndTests() {
+          require(getConfig(), ['lodash', 'shimmed', 'underscore'], function(lodash, shimmed, underscore) {
+            lodashModule = lodash;
+            lodashModule.moduleName = 'lodash';
+
+            if (shimmed) {
+              shimmedModule = shimmed.result(shimmed, 'noConflict') || shimmed;
+              shimmedModule.moduleName = 'shimmed';
+            }
+            if (underscore) {
+              underscoreModule = underscore.result(underscore, 'noConflict') || underscore;
+              underscoreModule.moduleName = 'underscore';
+            }
+            window._ = lodash;
+
+            if (ui.isModularize) {
+              require(getConfig(), [
+                'lodash/_baseEach',
+                'lodash/_isIndex',
+                'lodash/_isIterateeCall'
+              ], function(baseEach, isIndex, isIterateeCall) {
+                lodash._baseEach = baseEach;
+                lodash._isIndex = isIndex;
+                lodash._isIterateeCall = isIterateeCall;
+                loadTests();
+              });
+            } else {
+              loadTests();
+            }
+          });
+        }
+
+        QUnit.config.autostart = false;
+
+        if (window.requirejs) {
+          addBizarroMethods();
+          require(getConfig(), ['lodash'], function(lodash) {
+            lodashBizarro = lodash.result(lodash, 'noConflict') || lodash;
+            delete requirejs.s.contexts._;
+
+            removeBizarroMethods();
+            loadModulesAndTests();
+          });
+        } else {
+          loadModulesAndTests();
+        }
+      }());
+
+      // Set a more readable browser name.
+      window.onload = function() {
+        var timeoutId = setInterval(function() {
+          var ua = document.getElementById('qunit-userAgent');
+          if (ua) {
+            ua.innerHTML = platform;
+            clearInterval(timeoutId);
+          }
+        }, 16);
+      };
+    </script>
+  </body>
 </html>

test/playwright-runner.spec.js

@@ -0,0 +1,23 @@
+const { test, expect } = require('@playwright/test');
+
+test.describe.configure({ mode: 'parallel' });
+
+test('index', async ({ page }) => {
+  await page.goto('http://localhost:9001/test/index.html');
+  await expect(page.locator('text=0 failed')).toBeVisible({ timeout: 60000 });
+});
+
+test('fp', async ({ page }) => {
+  await page.goto('http://localhost:9001/test/fp.html');
+  await expect(page.locator('text=0 failed')).toBeVisible({ timeout: 60000 });
+});
+
+test('backbone', async ({ page }) => {
+  await page.goto('http://localhost:9001/test/backbone.html');
+  await expect(page.locator('text=0 failed')).toBeVisible({ timeout: 60000 });
+});
+
+test('underscore', async ({ page }) => {
+  await page.goto('http://localhost:9001/test/underscore.html');
+  await expect(page.locator('text=0 failed')).toBeVisible({ timeout: 60000 });
+});

test/remove.js

@@ -0,0 +1,27 @@
+#!/usr/bin/env node
+'use strict';
+
+var _ = require('../lodash'),
+    fs = require('fs'),
+    path = require('path');
+
+var args = (args = process.argv)
+  .slice((args[0] === process.execPath || args[0] === 'node') ? 2 : 0);
+
+var filePath = path.resolve(args[1]),
+    reLine = /.*/gm;
+
+var pattern = (function() {
+  var result = args[0],
+      delimiter = result.charAt(0),
+      lastIndex = result.lastIndexOf(delimiter);
+
+  return RegExp(result.slice(1, lastIndex), result.slice(lastIndex + 1));
+}());
+
+/*----------------------------------------------------------------------------*/
+
+fs.writeFileSync(filePath, fs.readFileSync(filePath, 'utf8').replace(pattern, function(match) {
+  var snippet = _.slice(arguments, -3, -2)[0];
+  return match.replace(snippet, snippet.replace(reLine, ''));
+}));

test/run-test.sh

@@ -1,14 +0,0 @@
-cd "$(dirname "$0")"
-
-for cmd in rhino "rhino -require" narwhal ringo phantomjs; do
-  echo "Testing in $cmd..."
-  $cmd test.js ../dist/lodash.compat.js && $cmd test.js ../dist/lodash.compat.min.js
-  echo ""
-done
-
-echo "Testing in node..."
-node test.js ../dist/lodash.js && node test.js ../dist/lodash.min.js
-
-echo ""
-echo "Testing in a browser..."
-open index.html

test/test-ui.js

@@ -1,174 +0,0 @@
-;(function(window) {
-  'use strict';
-
-  /** The base path of the builds */
-  var basePath = '../';
-
-  /** The Lo-Dash build to load */
-  var build = (build = /build=([^&]+)/.exec(location.search)) && decodeURIComponent(build[1]);
-
-  /** The module loader to use */
-  var loader = (loader = /loader=([^&]+)/.exec(location.search)) && decodeURIComponent(loader[1]);
-
-  /** The `ui` object */
-  var ui = {};
-
-  /*--------------------------------------------------------------------------*/
-
-  /**
-   * Registers an event listener on an element.
-   *
-   * @private
-   * @param {Element} element The element.
-   * @param {string} eventName The name of the event.
-   * @param {Function} handler The event handler.
-   * @returns {Element} The element.
-   */
-  function addListener(element, eventName, handler) {
-    if (typeof element.addEventListener != 'undefined') {
-      element.addEventListener(eventName, handler, false);
-    } else if (typeof element.attachEvent != 'undefined') {
-      element.attachEvent('on' + eventName, handler);
-    }
-  }
-
-  /*--------------------------------------------------------------------------*/
-
-  // expose `ui.urlParams` properties
-  ui.urlParams = {
-    'build': build,
-    'loader': loader
-  };
-
-  // expose Lo-Dash build file path
-  ui.buildPath = (function() {
-    var result;
-    switch (build) {
-      case 'lodash-compat':     result = 'dist/lodash.compat.min.js'; break;
-      case 'lodash-modern-dev': result = 'dist/lodash.js'; break;
-      case 'lodash-modern':     result = 'dist/lodash.min.js'; break;
-      case 'lodash-legacy':     result = 'dist/lodash.legacy.min.js'; break;
-      case 'lodash-mobile':     result = 'dist/lodash.mobile.min.js'; break;
-      case 'lodash-underscore': result = 'dist/lodash.underscore.min.js'; break;
-      case 'lodash-custom-dev': result = 'lodash.custom.js'; break;
-      case 'lodash-custom':     result = 'lodash.custom.min.js'; break;
-      case 'lodash-compat-dev':
-      case null:                result = 'lodash.js'; break;
-      default:                  return build;
-    }
-    return basePath + result;
-  }());
-
-  // expose module loader file path
-  ui.loaderPath = (function() {
-    var result;
-    switch (loader) {
-      case 'curl':      result = 'vendor/curl/dist/curl-kitchen-sink/curl.js'; break;
-      case 'dojo':      result = 'vendor/dojo/dojo.js'; break;
-      case 'requirejs':
-      case null:        result = 'vendor/requirejs/require.js'; break;
-      default:          return loader;
-    }
-    return basePath + result;
-  }());
-
-  // used to indicate testing a modularized build
-  ui.isModularize = /\b(?:commonjs|(index|main)\.js|lodash-(?:amd|node)|modularize)\b/.test([location.pathname, location.search, ui.buildPath]);
-
-  // initialize controls
-  addListener(window, 'load', function() {
-    function eventHandler(event) {
-      var buildIndex = buildList.selectedIndex,
-          loaderIndex = loaderList.selectedIndex,
-          search = location.search.replace(/^\?|&?(?:build|loader)=[^&]*&?/g, '');
-
-      if (event.stopPropagation) {
-        event.stopPropagation();
-      } else {
-        event.cancelBubble = true;
-      }
-      location.href =
-        location.href.split('?')[0] + '?' +
-        (search ? search + '&' : '') +
-        'build=' + (buildIndex < 0 ? build : buildList[buildIndex].value) + '&' +
-        'loader=' + (loaderIndex < 0 ? loader : loaderList[loaderIndex].value);
-    }
-
-    function init() {
-      var toolbar = document.getElementById('qunit-testrunner-toolbar');
-      if (toolbar) {
-        toolbar.appendChild(span1);
-        toolbar.appendChild(span2);
-
-        buildList.selectedIndex = (function() {
-          switch (build) {
-            case 'lodash-compat':     return 1;
-            case 'lodash-modern-dev': return 2;
-            case 'lodash-modern':     return 3;
-            case 'lodash-legacy':     return 4;
-            case 'lodash-mobile':     return 5;
-            case 'lodash-underscore': return 6;
-            case 'lodash-custom-dev': return 7;
-            case 'lodash-custom':     return 8;
-            case 'lodash-compat-dev':
-            case null:                return 0;
-          }
-          return -1;
-        }());
-
-        loaderList.selectedIndex = (function() {
-          switch (loader) {
-            case 'none':      return 0
-            case 'curl':      return 1;
-            case 'dojo':      return 2;
-            case 'requirejs':
-            case null:        return 3;
-          }
-          return -1;
-        }());
-
-        addListener(buildList, 'change', eventHandler);
-        addListener(loaderList, 'change', eventHandler);
-      }
-      else {
-        setTimeout(init, 15);
-      }
-    }
-
-    var span1 = document.createElement('span');
-    span1.style.cssText = 'float:right';
-    span1.innerHTML =
-      '<label for="qunit-build">Build: </label>' +
-      '<select id="qunit-build">' +
-      '<option value="lodash-compat-dev">Lo-Dash (compat development)</option>' +
-      '<option value="lodash-compat">Lo-Dash (compat production)</option>' +
-      '<option value="lodash-modern-dev">Lo-Dash (modern development)</option>' +
-      '<option value="lodash-modern">Lo-Dash (modern production)</option>' +
-      '<option value="lodash-legacy">Lo-Dash (legacy)</option>' +
-      '<option value="lodash-mobile">Lo-Dash (mobile)</option>' +
-      '<option value="lodash-underscore">Lo-Dash (underscore)</option>' +
-      '<option value="lodash-custom-dev">Lo-Dash (custom development)</option>' +
-      '<option value="lodash-custom">Lo-Dash (custom production)</option>' +
-      '</select>';
-
-    var span2 = document.createElement('span');
-    span2.style.cssText = 'float:right';
-    span2.innerHTML =
-      '<label for="qunit-loader">Loader: </label>' +
-      '<select id="qunit-loader">' +
-      '<option value="none">None</option>' +
-      '<option value="curl">Curl</option>' +
-      '<option value="dojo">Dojo</option>' +
-      '<option value="requirejs">RequireJS</option>' +
-      '</select>';
-
-    var buildList = span1.lastChild,
-        loaderList = span2.lastChild;
-
-    init();
-  });
-
-  // expose `ui`
-  window.ui = ui;
-
-}(this));

test/underscore.html

@@ -1,142 +1,466 @@
 <!doctype html>
 <html lang="en">
-	<head>
-		<meta charset="utf-8">
-		<title>Underscore Test Suite</title>
-		<link rel="stylesheet" href="../vendor/qunit/qunit/qunit.css">
-		<style>
-			iframe {
-				display: none;
-			}
-		</style>
-	</head>
-	<body>
-		<div id="qunit"></div>
-		<div id="qunit-fixture">
-			<div id="map-test">
-				<div id="id1"></div>
-				<div id="id2"></div>
-			</div>
-			<img id="chart_image" src="data:image/gif;base64,R0lGODlhAQABAIAAAP///////yH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==">
-		</div>
-		<script src="../vendor/qunit/qunit/qunit.js"></script>
-		<script src="../vendor/jquery/jquery.js"></script>
-		<script src="../vendor/platform.js/platform.js"></script>
-		<script src="test-ui.js"></script>
-		<script>
-			function init(lodash) {
-				var arrayRef = [],
-				    push = arrayRef.push;
+  <head>
+    <meta charset="utf-8">
+    <title>Underscore Test Suite</title>
+    <link rel="stylesheet" href="../node_modules/qunitjs/qunit/qunit.css">
+  </head>
+  <body>
+    <div id="qunit"></div>
+    <script>
+      // Avoid reporting tests to Sauce Labs when script errors occur.
+      if (location.port == '9001') {
+        window.onerror = function(message) {
+          if (window.QUnit) {
+            QUnit.config.done.length = 0;
+          }
+          global_test_results = { 'message': message };
+        };
+      }
+    </script>
+    <script src="../node_modules/qunitjs/qunit/qunit.js"></script>
+    <script src="../node_modules/qunit-extras/qunit-extras.js"></script>
+    <script src="../node_modules/jquery/dist/jquery.js"></script>
+    <script src="../node_modules/platform/platform.js"></script>
+    <script src="./asset/test-ui.js"></script>
+    <script src="../lodash.js"></script>
+    <script>
+      QUnit.config.asyncRetries = 10;
+      QUnit.config.hidepassed = true;
+      QUnit.config.excused = {
+        'Arrays': {
+          'chunk': [
+            'defaults to empty array (chunk size 0)'
+          ],
+          'difference': [
+            'can perform an OO-style difference'
+          ],
+          'drop': [
+            'is an alias for rest'
+          ],
+          'first': [
+            'returns an empty array when n <= 0 (0 case)',
+            'returns an empty array when n <= 0 (negative case)',
+            'can fetch the first n elements',
+            'returns the whole array if n > length'
+          ],
+          'findIndex': [
+            'called with context'
+          ],
+          'findLastIndex': [
+            'called with context'
+          ],
+          'flatten': [
+            'supports empty arrays',
+            'can flatten nested arrays',
+            'works on an arguments object',
+            'can handle very deep arrays'
+          ],
+          'indexOf': [
+            "sorted indexOf doesn't uses binary search",
+            '0'
+          ],
+          'initial': [
+            'returns all but the last n elements',
+            'returns an empty array when n > length',
+            'works on an arguments object'
+          ],
+          'intersection': [
+            'can perform an OO-style intersection'
+          ],
+          'last': [
+            'returns an empty array when n <= 0 (0 case)',
+            'returns an empty array when n <= 0 (negative case)',
+            'can fetch the last n elements',
+            'returns the whole array if n > length'
+          ],
+          'lastIndexOf': [
+            'should treat falsey `fromIndex` values, except `0` and `NaN`, as `array.length`',
+            'should treat non-number `fromIndex` values as `array.length`',
+            '[0,-1,-1]'
+          ],
+          'object': [
+            'an array of pairs zipped together into an object',
+            'an object converted to pairs and back to an object'
+          ],
+          'rest': [
+            'returns the whole array when index is 0',
+            'returns elements starting at the given index',
+            'works on an arguments object'
+          ],
+          'sortedIndex': [
+            '2',
+            '3'
+          ],
+          'tail': [
+            'is an alias for rest'
+          ],
+          'take': [
+            'is an alias for first'
+          ],
+          'uniq': [
+            'uses the result of `iterator` for uniqueness comparisons (unsorted case)',
+            '`sorted` argument defaults to false when omitted',
+            'when `iterator` is a string, uses that key for comparisons (unsorted case)',
+            'uses the result of `iterator` for uniqueness comparisons (sorted case)',
+            'when `iterator` is a string, uses that key for comparisons (sorted case)',
+            'can use falsey pluck like iterator'
+          ],
+          'union': [
+            'can perform an OO-style union'
+          ]
+        },
+        'Chaining': {
+          'pop': true,
+          'shift': true,
+          'splice': true,
+          'reverse/concat/unshift/pop/map': [
+            'can chain together array functions.'
+          ]
+        },
+        'Collections': {
+          'lookupIterator with contexts': true,
+          'Iterating objects with sketchy length properties': true,
+          'Resistant to collection length and properties changing while iterating': true,
+          'countBy': [
+            '{}',
+            '[{}]'
+          ],
+          'each': [
+            'context object property accessed'
+          ],
+          'every': [
+            'Can be called with object',
+            'Died on test #15',
+            'context works'
+          ],
+          'filter': [
+            'given context',
+            'OO-filter'
+          ],
+          'find': [
+            'called with context'
+          ],
+          'findWhere': [
+            'checks properties given function'
+          ],
+          'groupBy': [
+            '{}',
+            '[{}]'
+          ],
+          'includes': [
+            "doesn't delegate to binary search"
+          ],
+          'invoke': [
+            'handles null & undefined'
+          ],
+          'map': [
+            'tripled numbers with context',
+            'OO-style doubled numbers'
+          ],
+          'max': [
+            'can handle null/undefined',
+            'can perform a computation-based max',
+            'Maximum value of an empty object',
+            'Maximum value of an empty array',
+            'Maximum value of a non-numeric collection',
+            'Finds correct max in array starting with num and containing a NaN',
+            'Finds correct max in array starting with NaN',
+            'Respects iterator return value of -Infinity',
+            'String keys use property iterator',
+            'Iterator context',
+            'Lookup falsy iterator'
+          ],
+          'min': [
+            'can handle null/undefined',
+            'can perform a computation-based min',
+            'Minimum value of an empty object',
+            'Minimum value of an empty array',
+            'Minimum value of a non-numeric collection',
+            'Finds correct min in array starting with NaN',
+            'Respects iterator return value of Infinity',
+            'String keys use property iterator',
+            'Iterator context',
+            'Lookup falsy iterator'
+          ],
+          'partition': [
+            'can reference the array index',
+            'Died on test #8',
+            'partition takes a context argument'
+          ],
+          'pluck': [
+            '[1]'
+          ],
+          'reduce': [
+            'can reduce with a context object'
+          ],
+          'reject': [
+            'Returns empty list given empty array'
+          ],
+          'sample': [
+            'behaves correctly on negative n',
+            'Died on test #3'
+          ],
+          'some': [
+            'Can be called with object',
+            'Died on test #17',
+            'context works'
+          ],
+          'where': [
+            'checks properties given function'
+          ],
+          'Can use various collection methods on NodeLists': [
+            '<span id="id2"></span>'
+          ]
+        },
+        'Functions': {
+          'debounce asap': true,
+          'debounce asap cancel': true,
+          'debounce asap recursively': true,
+          'debounce after system time is set backwards': true,
+          'debounce re-entrant': true,
+          'throttle repeatedly with results': true,
+          'more throttle does not trigger leading call when leading is set to false': true,
+          'throttle does not trigger trailing call when trailing is set to false': true,
+          'before': true,
+          'bind': [
+            'Died on test #2'
+          ],
+          'bindAll': [
+            'throws an error for bindAll with no functions named'
+          ],
+          'debounce': [
+            'incr was debounced'
+          ],
+          'iteratee': [
+            '"bbiz"',
+            '"foo"',
+            '1'
+          ],
+          'memoize': [
+            '{"bar":"BAR","foo":"FOO"}',
+            'Died on test #8'
+          ]
+        },
+        'Objects': {
+          '#1929 Typed Array constructors are functions': true,
+          'allKeys': [
+            'is not fooled by sparse arrays; see issue #95',
+            'is not fooled by sparse arrays with additional properties',
+            '[]'
+          ],
+          'extend': [
+            'extending null results in null',
+            'extending undefined results in undefined'
+          ],
+          'extendOwn': [
+            'extending non-objects results in returning the non-object value',
+            'extending undefined results in undefined'
+          ],
+          'functions': [
+            'also looks up functions on the prototype'
+          ],
+          'isEqual': [
+            '`0` is not equal to `-0`',
+            'Commutative equality is implemented for `0` and `-0`',
+            '`new Number(0)` and `-0` are not equal',
+            'Commutative equality is implemented for `new Number(0)` and `-0`',
+            'Invalid dates are not equal',
+            'false'
+          ],
+          'isFinite': [
+            'Numeric strings are numbers',
+            'Number instances can be finite'
+          ],
+          'isSet': [
+            'Died on test #9'
+          ],
+          'findKey': [
+            'called with context'
+          ],
+          'keys': [
+            'is not fooled by sparse arrays; see issue #95',
+            '[]'
+          ],
+          'mapObject': [
+            'keep context',
+            'called with context',
+            'mapValue identity'
+          ],
+          'omit': [
+            'can accept a predicate',
+            'function is given context'
+          ],
+          'pick': [
+            'can accept a predicate and context',
+            'function is given context'
+          ]
+        },
+        'Utility': {
+          '_.escape & unescape': [
+            '` is escaped',
+            '` can be unescaped',
+            'can escape multiple occurances of `',
+            'multiple occurrences of ` can be unescaped'
+          ],
+          'now': [
+            'Produces the correct time in milliseconds'
+          ],
+          'times': [
+            'works as a wrapper'
+          ]
+        }
+      };
 
-				if (!lodash().map()) {
-					return;
-				}
-				lodash.mixin = function(object) {
-					lodash.forEach(lodash.functions(object), function(methodName) {
-						var func = lodash[methodName] = object[methodName];
-						lodash.prototype[methodName] = function() {
-							var args = [this.__wrapped__];
-							push.apply(args, arguments);
+      var mixinPrereqs = (function() {
+        var aliasToReal = {
+          'all': 'every',
+          'allKeys': 'keysIn',
+          'any': 'some',
+          'collect': 'map',
+          'compose': 'flowRight',
+          'contains': 'includes',
+          'detect': 'find',
+          'extendOwn': 'assign',
+          'findWhere': 'find',
+          'foldl': 'reduce',
+          'foldr': 'reduceRight',
+          'include': 'includes',
+          'indexBy': 'keyBy',
+          'inject': 'reduce',
+          'invoke': 'invokeMap',
+          'mapObject': 'mapValues',
+          'matcher': 'matches',
+          'methods': 'functions',
+          'object': 'zipObject',
+          'pairs': 'toPairs',
+          'pluck': 'map',
+          'restParam': 'restArgs',
+          'select': 'filter',
+          'unique': 'uniq',
+          'where': 'filter'
+        };
 
-							var result = func.apply(lodash, args);
-							if (this.__chain__) {
-								result = new lodash(result);
-								result.__chain__ = true;
-							}
-							return result;
-						};
-					});
-				};
+        var keyMap = {
+          'rest': 'tail',
+          'restArgs': 'rest'
+        };
 
-				lodash.forEach(['pop', 'shift'], function(methodName) {
-					var func = arrayRef[methodName];
-					lodash.prototype[methodName] = function() {
-						func.apply(this.__wrapped__, arguments);
-						return this;
-					};
-				});
+        var lodash = _.noConflict();
 
+        return function(_) {
+          lodash(_)
+            .defaultsDeep({ 'templateSettings': lodash.templateSettings })
+            .mixin(lodash.pick(lodash, lodash.difference(lodash.functions(lodash), lodash.functions(_))))
+            .value();
 
-				lodash.mixin(lodash);
+          lodash.forOwn(keyMap, function(realName, otherName) {
+            _[otherName] = lodash[realName];
+            _.prototype[otherName] = lodash.prototype[realName];
+          });
+          lodash.forOwn(aliasToReal, function(realName, alias) {
+            _[alias] = _[realName];
+            _.prototype[alias] = _.prototype[realName];
+          });
+          return _;
+        };
+      }());
 
-				// expose lodash
-				window._ = lodash;
-			}
+      // Only excuse in Sauce Labs.
+      if (!ui.isSauceLabs) {
+        delete QUnit.config.excused.Functions['throttle does not trigger trailing call when trailing is set to false'];
+        delete QUnit.config.excused.Utility.now;
+      }
+      // Load prerequisite scripts.
+      document.write(ui.urlParams.loader == 'none'
+        ? '<script src="' + ui.buildPath + '"><\/script>'
+        : '<script data-dojo-config="async:1" src="' + ui.loaderPath + '"><\/script>'
+      );
+    </script>
+    <script>
+      if (ui.urlParams.loader == 'none') {
+        mixinPrereqs(_);
+        document.write([
+          '<script src="../vendor/underscore/test/collections.js"><\/script>',
+          '<script src="../vendor/underscore/test/arrays.js"><\/script>',
+          '<script src="../vendor/underscore/test/functions.js"><\/script>',
+          '<script src="../vendor/underscore/test/objects.js"><\/script>',
+          '<script src="../vendor/underscore/test/cross-document.js"><\/script>',
+          '<script src="../vendor/underscore/test/utility.js"><\/script>',
+          '<script src="../vendor/underscore/test/chaining.js"><\/script>'
+        ].join('\n'));
+      }
+    </script>
+    <script>
+      (function() {
+        if (window.curl) {
+          curl.config({ 'apiName': 'require' });
+        }
+        if (!window.require) {
+          return;
+        }
+        // Wrap to work around tests assuming Node `require` use.
+        require = (function(func) {
+          return function() {
+            return arguments[0] === '..' ? window._ : func.apply(null, arguments);
+          };
+        }(require));
 
-			// load Lo-Dash again to overwrite the existing `_` value
-			document.write('<script src="' + (ui.isModularize ? '../lodash.js' : ui.buildPath) + '"><\/script>');
+        var reBasename = /[\w.-]+$/,
+            basePath = ('//' + location.host + location.pathname.replace(reBasename, '')).replace(/\btest\/$/, ''),
+            modulePath = ui.buildPath.replace(/\.js$/, ''),
+            locationPath = modulePath.replace(reBasename, '').replace(/^\/|\/$/g, ''),
+            moduleId = /\bunderscore\b/i.test(ui.buildPath) ? 'underscore' : 'lodash',
+            moduleMain = modulePath.match(reBasename)[0],
+            uid = +new Date;
 
-			// load test.js if not using require.js
-			document.write(ui.urlParams.loader != 'none'
-				? '<script data-dojo-config="async:1" src="' + ui.loaderPath + '"><\/script>'
-				: ([
-					'<script src="../vendor/underscore/test/collections.js"><\/script>',
-					'<script src="../vendor/underscore/test/arrays.js"><\/script>',
-					'<script src="../vendor/underscore/test/functions.js"><\/script>',
-					'<script src="../vendor/underscore/test/objects.js"><\/script>',
-					'<script src="../vendor/underscore/test/utility.js"><\/script>',
-					'<script src="../vendor/underscore/test/chaining.js"><\/script>'
-				  ].join('\n'))
-			);
-		</script>
-		<script>
-			(function() {
-				if (window.curl) {
-					curl.config({ 'apiName': 'require' });
-				}
-				if (!window.require) {
-					init(_);
-					return;
-				}
-				var reBasename = /[\w.-]+$/,
-				    basePath = ('//' + location.host + location.pathname).replace(/\btest\/$/, ''),
-				    modulePath = ui.buildPath.replace(/\.js$/, ''),
-				    locationPath = modulePath.replace(reBasename, ''),
-				    moduleMain = modulePath.match(reBasename)[0];
+        function getConfig() {
+          var result = {
+            'baseUrl': './',
+            'urlArgs': 't=' + uid++,
+            'waitSeconds': 0,
+            'paths': {},
+            'packages': [{
+              'name': 'test',
+              'location': '../vendor/underscore/test',
+              'config': {
+                // Work around no global being exported.
+                'exports': 'QUnit',
+                'loader': 'curl/loader/legacy'
+              }
+            }]
+          };
 
-				QUnit.config.autostart = false;
+          if (ui.isModularize) {
+            result.packages.push({
+              'name': moduleId,
+              'location': locationPath,
+              'main': moduleMain
+            });
+          } else {
+            result.paths[moduleId] = modulePath;
+          }
+          return result;
+        }
 
-				// load Lo-Dash as a module
-				require({
-					'baseUrl': './',
-					'urlArgs': 't=' + (+new Date),
-					'packages': [
-						{
-							'name': 'lodash',
-							'location': locationPath,
-							'main': moduleMain
-						},
-						{
-							'name': 'test',
-							'location': '../vendor/underscore/test',
-							'config': {
-								// work around no global being exported
-								'exports': 'QUnit',
-								'loader': 'curl/loader/legacy'
-							}
-						}
-					]
-				},
-				['lodash'], function(lodash) {
-					init(lodash);
-					require([
-						'test/collections',
-						'test/arrays',
-						'test/functions',
-						'test/objects',
-						'test/utility',
-						'test/chaining'
-					], function() {
-						QUnit.start();
-					});
-				});
-			}());
-		</script>
-		<script type="text/html" id="template">
-			<%
-			// a comment
-			if (data) { data += 12345; }; %>
-			<li><%= data %></li>
-		</script>
-	</body>
+        QUnit.config.autostart = false;
+        QUnit.config.excused.Functions.iteratee = true;
+        QUnit.config.excused.Utility.noConflict = true;
+        QUnit.config.excused.Utility['noConflict (node vm)'] = true;
+
+        require(getConfig(), [moduleId], function(lodash) {
+          _ = mixinPrereqs(lodash);
+          require(getConfig(), [
+            'test/collections',
+            'test/arrays',
+            'test/functions',
+            'test/objects',
+            'test/cross-document',
+            'test/utility',
+            'test/chaining'
+          ], QUnit.start);
+        });
+      }());
+    </script>
+  </body>
 </html>

test/worker.js

@@ -1,6 +0,0 @@
-addEventListener('message', function(e) {
-  if (e.data) {
-    importScripts(e.data);
-    postMessage(_.VERSION);
-  }
-}, false);

threat-model.md

@@ -0,0 +1,82 @@
+# The Lodash Threat Model
+
+The Lodash threat model defines what Lodash trusts and does not trust when executing within a JavaScript environment. Lodash is a general-purpose utility library that operates within the same trust boundaries as the code that calls it. Therefore, vulnerabilities requiring the compromise of trusted elements — such as the JavaScript runtime, the host environment, or developer-controlled inputs — lie outside the scope of this threat model.
+
+For a vulnerability to be considered within scope, it must result from Lodash itself violating its documented behavior or failing to maintain integrity, confidentiality, or availability under its standard usage assumptions.
+
+
+## Elements Lodash Does NOT Trust
+
+1. **Data provided to Lodash functions**  
+Lodash treats all input data (arrays, objects, strings, functions, etc.) as untrusted. It does not attempt to validate or sanitize the semantic correctness of inputs — it operates on values as they are given.  
+*If an untrusted input can cause Lodash to execute behavior beyond what is documented — such as prototype pollution, type confusion, memory exhaustion, or code injection — that would indicate a security vulnerability.*
+
+2. **Untrusted network sources or user-controlled data**  
+Any input derived from unvalidated user input, network responses, file contents, or deserialized data is untrusted. Lodash does not perform input isolation or sandboxing.
+
+3. **Tampering with Lodash internals at runtime**  
+Modifying Lodash’s internal symbols, monkey-patching its functions, or overwriting internal references at runtime is outside the trusted boundary.  
+*If such modification changes Lodash behavior, that reflects a compromise of trusted code, not a Lodash vulnerability.*
+
+
+## Elements Lodash Trusts
+
+1. **The JavaScript runtime and its standard library**  
+Lodash assumes a correct, uncompromised runtime environment (e.g., Node.js, browser). Vulnerabilities in the runtime (e.g., prototype chain issues, engine crashes) are out of scope.
+
+2. **The environment and its configuration**  
+Lodash relies on the correct functioning of the host environment (Node.js, browser, Deno, etc.) and any global objects or APIs it uses (e.g., `Object`, `Array`, `Function`, `JSON`).
+
+3. **The code that invokes Lodash**  
+The application or library using Lodash is responsible for validating user input, performing security checks, and handling execution context appropriately.
+
+4. **Installed package integrity**  
+Lodash assumes that the package installed (via npm, cdn, etc.) has not been tampered with and originates from the legitimate Lodash distribution channel.  
+*Supply-chain compromise or malicious clones are not considered Lodash vulnerabilities.*
+
+5. **The privileges and permissions of the execution context**  
+Lodash inherits the privileges of the user or process that invokes it. Misuse or over-privileged execution environments (e.g., running as root, or with excessive browser permissions) are not within scope.
+
+## Examples of Vulnerabilities (in scope)
+
+- **Prototype Pollution ([CWE-1321](https://cwe.mitre.org/data/definitions/1321.html))**  
+  If a Lodash function (e.g., `merge`, `defaultsDeep`, or `set`) allows modification of `Object.prototype` properties via untrusted input (e.g., `__proto__` keys) due to insufficient sanitization, it is in scope.  
+  This class of vulnerability has been observed in prior Lodash versions (e.g., [CVE-2019-10744](https://www.cve.org/CVERecord?id=CVE-2019-10744)).
+
+- **Unexpected code execution ([CWE-94](https://cwe.mitre.org/data/definitions/94.html))**  
+  If a Lodash method (e.g., `template()`) executes attacker-controlled input as code without documented warnings or sanitization requirements, that is a Lodash vulnerability (e.g., [CVE-2021-23337](https://nvd.nist.gov/vuln/detail/CVE-2021-23337)).
+
+- **Denial of Service (DoS) through logic flaws ([CWE-400](https://cwe.mitre.org/data/definitions/400.html))**  
+  If Lodash enters unbounded recursion, excessive memory usage, or hangs when operating on otherwise valid inputs within documented usage limits, this is a vulnerability in Lodash (e.g, [CVE-2020-28500](https://www.cve.org/CVERecord?id=CVE-2020-28500)).
+
+
+## Examples of Non-Vulnerabilities (out of scope)
+
+### Malicious Third-Party Packages ([CWE-1357](https://cwe.mitre.org/data/definitions/1357.html))
+
+If a project includes a malicious dependency that overrides Lodash behavior or injects malicious code into Lodash’s namespace, it does not represent a Lodash vulnerability. Lodash trusts its runtime and installation context.
+
+### Unvalidated Application Input
+
+Applications using Lodash are responsible for input validation. Passing attacker-controlled data directly into Lodash functions (e.g., `_.merge(req.body, config)`) is an application bug, not a Lodash vulnerability.
+
+### Prototype Pollution via Trusted Code
+
+If a developer intentionally merges user input into global objects or fails to isolate data structures, that is a misuse of Lodash’s documented API, not a Lodash defect.
+
+### Vulnerabilities in the JavaScript Runtime or Platform
+
+If a Lodash method triggers a bug in the JavaScript engine (e.g., V8, SpiderMonkey, JavaScriptCore) that leads to memory corruption or incorrect behavior, the vulnerability lies in the engine, not Lodash.
+
+### Environmental Misconfiguration ([CWE-15](https://cwe.mitre.org/data/definitions/15.html))
+
+Issues arising from misconfigured execution environments, such as running outdated Node.js versions or insecure Content Security Policies in browsers, are not considered Lodash vulnerabilities.
+
+### Supply Chain Compromise
+
+Tampering with Lodash packages in the npm registry, MITM attacks during installation, or local file system manipulation are not vulnerabilities in Lodash itself.
+
+
+## Summary
+
+Lodash is a utility library operating entirely within the trust boundary of its caller. Vulnerabilities in scope are limited to cases where **Lodash fails to uphold its documented behavior** in the presence of **untrusted input**, without assuming compromise of trusted components such as the runtime, the operating system, or the invoking application code.

vendor/backbone/LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2010-2013 Jeremy Ashkenas, DocumentCloud
+Copyright (c) 2010-2016 Jeremy Ashkenas, DocumentCloud
 
 Permission is hereby granted, free of charge, to any person
 obtaining a copy of this software and associated documentation

vendor/backbone/test/environment.js

@@ -1,45 +0,0 @@
-(function() {
-
-  var Environment = this.Environment = function(){};
-
-  _.extend(Environment.prototype, {
-
-    ajax: Backbone.ajax,
-
-    sync: Backbone.sync,
-
-    emulateHTTP: Backbone.emulateHTTP,
-
-    emulateJSON: Backbone.emulateJSON,
-
-    setup: function() {
-      var env = this;
-
-      // Capture ajax settings for comparison.
-      Backbone.ajax = function(settings) {
-        env.ajaxSettings = settings;
-      };
-
-      // Capture the arguments to Backbone.sync for comparison.
-      Backbone.sync = function(method, model, options) {
-        env.syncArgs = {
-          method: method,
-          model: model,
-          options: options
-        };
-        env.sync.apply(this, arguments);
-      };
-    },
-
-    teardown: function() {
-      this.syncArgs = null;
-      this.ajaxSettings = null;
-      Backbone.sync = this.sync;
-      Backbone.ajax = this.ajax;
-      Backbone.emulateHTTP = this.emulateHTTP;
-      Backbone.emulateJSON = this.emulateJSON;
-    }
-
-  });
-
-})();

vendor/backbone/test/events.js

@@ -1,42 +1,44 @@
-$(document).ready(function() {
+(function(QUnit) {
 
-  module("Backbone.Events");
+  QUnit.module('Backbone.Events');
 
-  test("on and trigger", 2, function() {
-    var obj = { counter: 0 };
-    _.extend(obj,Backbone.Events);
+  QUnit.test('on and trigger', function(assert) {
+    assert.expect(2);
+    var obj = {counter: 0};
+    _.extend(obj, Backbone.Events);
     obj.on('event', function() { obj.counter += 1; });
     obj.trigger('event');
-    equal(obj.counter,1,'counter should be incremented.');
+    assert.equal(obj.counter, 1, 'counter should be incremented.');
     obj.trigger('event');
     obj.trigger('event');
     obj.trigger('event');
     obj.trigger('event');
-    equal(obj.counter, 5, 'counter should be incremented five times.');
+    assert.equal(obj.counter, 5, 'counter should be incremented five times.');
   });
 
-  test("binding and triggering multiple events", 4, function() {
-    var obj = { counter: 0 };
+  QUnit.test('binding and triggering multiple events', function(assert) {
+    assert.expect(4);
+    var obj = {counter: 0};
     _.extend(obj, Backbone.Events);
 
     obj.on('a b c', function() { obj.counter += 1; });
 
     obj.trigger('a');
-    equal(obj.counter, 1);
+    assert.equal(obj.counter, 1);
 
     obj.trigger('a b');
-    equal(obj.counter, 3);
+    assert.equal(obj.counter, 3);
 
     obj.trigger('c');
-    equal(obj.counter, 4);
+    assert.equal(obj.counter, 4);
 
     obj.off('a c');
     obj.trigger('a b c');
-    equal(obj.counter, 5);
+    assert.equal(obj.counter, 5);
   });
 
-  test("binding and triggering with event maps", function() {
-    var obj = { counter: 0 };
+  QUnit.test('binding and triggering with event maps', function(assert) {
+    var obj = {counter: 0};
     _.extend(obj, Backbone.Events);
 
     var increment = function() {
@@ -50,36 +52,85 @@ $(document).ready(function() {
     }, obj);
 
     obj.trigger('a');
-    equal(obj.counter, 1);
+    assert.equal(obj.counter, 1);
 
     obj.trigger('a b');
-    equal(obj.counter, 3);
+    assert.equal(obj.counter, 3);
 
     obj.trigger('c');
-    equal(obj.counter, 4);
+    assert.equal(obj.counter, 4);
 
     obj.off({
       a: increment,
       c: increment
     }, obj);
     obj.trigger('a b c');
-    equal(obj.counter, 5);
+    assert.equal(obj.counter, 5);
   });
 
-  test("listenTo and stopListening", 1, function() {
+  QUnit.test('binding and triggering multiple event names with event maps', function(assert) {
+    var obj = {counter: 0};
+    _.extend(obj, Backbone.Events);
+
+    var increment = function() {
+      this.counter += 1;
+    };
+
+    obj.on({
+      'a b c': increment
+    });
+
+    obj.trigger('a');
+    assert.equal(obj.counter, 1);
+
+    obj.trigger('a b');
+    assert.equal(obj.counter, 3);
+
+    obj.trigger('c');
+    assert.equal(obj.counter, 4);
+
+    obj.off({
+      'a c': increment
+    });
+    obj.trigger('a b c');
+    assert.equal(obj.counter, 5);
+  });
+
+  QUnit.test('binding and trigger with event maps context', function(assert) {
+    assert.expect(2);
+    var obj = {counter: 0};
+    var context = {};
+    _.extend(obj, Backbone.Events);
+
+    obj.on({
+      a: function() {
+        assert.strictEqual(this, context, 'defaults `context` to `callback` param');
+      }
+    }, context).trigger('a');
+
+    obj.off().on({
+      a: function() {
+        assert.strictEqual(this, context, 'will not override explicit `context` param');
+      }
+    }, this, context).trigger('a');
+  });
+
+  QUnit.test('listenTo and stopListening', function(assert) {
+    assert.expect(1);
     var a = _.extend({}, Backbone.Events);
     var b = _.extend({}, Backbone.Events);
-    a.listenTo(b, 'all', function(){ ok(true); });
+    a.listenTo(b, 'all', function(){ assert.ok(true); });
     b.trigger('anything');
-    a.listenTo(b, 'all', function(){ ok(false); });
+    a.listenTo(b, 'all', function(){ assert.ok(false); });
     a.stopListening();
     b.trigger('anything');
   });
 
-  test("listenTo and stopListening with event maps", 4, function() {
+  QUnit.test('listenTo and stopListening with event maps', function(assert) {
+    assert.expect(4);
     var a = _.extend({}, Backbone.Events);
     var b = _.extend({}, Backbone.Events);
-    var cb = function(){ ok(true); };
+    var cb = function(){ assert.ok(true); };
     a.listenTo(b, {event: cb});
     b.trigger('event');
     a.listenTo(b, {event2: cb});
@@ -90,10 +141,11 @@ $(document).ready(function() {
     b.trigger('event event2');
   });
 
-  test("stopListening with omitted args", 2, function () {
+  QUnit.test('stopListening with omitted args', function(assert) {
+    assert.expect(2);
     var a = _.extend({}, Backbone.Events);
     var b = _.extend({}, Backbone.Events);
-    var cb = function () { ok(true); };
+    var cb = function() { assert.ok(true); };
     a.listenTo(b, 'event', cb);
     b.on('event', cb);
     a.listenTo(b, 'event2', cb);
@@ -106,98 +158,237 @@ $(document).ready(function() {
     b.trigger('event2');
   });
 
-  test("listenToOnce and stopListening", 1, function() {
+  QUnit.test('listenToOnce', function(assert) {
+    assert.expect(2);
+    // Same as the previous test, but we use once rather than having to explicitly unbind
+    var obj = {counterA: 0, counterB: 0};
+    _.extend(obj, Backbone.Events);
+    var incrA = function(){ obj.counterA += 1; obj.trigger('event'); };
+    var incrB = function(){ obj.counterB += 1; };
+    obj.listenToOnce(obj, 'event', incrA);
+    obj.listenToOnce(obj, 'event', incrB);
+    obj.trigger('event');
+    assert.equal(obj.counterA, 1, 'counterA should have only been incremented once.');
+    assert.equal(obj.counterB, 1, 'counterB should have only been incremented once.');
+  });
+
+  QUnit.test('listenToOnce and stopListening', function(assert) {
+    assert.expect(1);
     var a = _.extend({}, Backbone.Events);
     var b = _.extend({}, Backbone.Events);
-    a.listenToOnce(b, 'all', function() { ok(true); });
+    a.listenToOnce(b, 'all', function() { assert.ok(true); });
     b.trigger('anything');
     b.trigger('anything');
-    a.listenToOnce(b, 'all', function() { ok(false); });
+    a.listenToOnce(b, 'all', function() { assert.ok(false); });
     a.stopListening();
     b.trigger('anything');
   });
 
-  test("listenTo, listenToOnce and stopListening", 1, function() {
+  QUnit.test('listenTo, listenToOnce and stopListening', function(assert) {
+    assert.expect(1);
     var a = _.extend({}, Backbone.Events);
     var b = _.extend({}, Backbone.Events);
-    a.listenToOnce(b, 'all', function() { ok(true); });
+    a.listenToOnce(b, 'all', function() { assert.ok(true); });
     b.trigger('anything');
     b.trigger('anything');
-    a.listenTo(b, 'all', function() { ok(false); });
+    a.listenTo(b, 'all', function() { assert.ok(false); });
     a.stopListening();
     b.trigger('anything');
   });
 
-  test("listenTo and stopListening with event maps", 1, function() {
+  QUnit.test('listenTo and stopListening with event maps', function(assert) {
+    assert.expect(1);
     var a = _.extend({}, Backbone.Events);
     var b = _.extend({}, Backbone.Events);
-    a.listenTo(b, {change: function(){ ok(true); }});
+    a.listenTo(b, {change: function(){ assert.ok(true); }});
     b.trigger('change');
-    a.listenTo(b, {change: function(){ ok(false); }});
+    a.listenTo(b, {change: function(){ assert.ok(false); }});
     a.stopListening();
     b.trigger('change');
   });
 
-  test("listenTo yourself", 1, function(){
+  QUnit.test('listenTo yourself', function(assert) {
+    assert.expect(1);
     var e = _.extend({}, Backbone.Events);
-    e.listenTo(e, "foo", function(){ ok(true); });
-    e.trigger("foo");
+    e.listenTo(e, 'foo', function(){ assert.ok(true); });
+    e.trigger('foo');
   });
 
-  test("listenTo yourself cleans yourself up with stopListening", 1, function(){
+  QUnit.test('listenTo yourself cleans yourself up with stopListening', function(assert) {
+    assert.expect(1);
     var e = _.extend({}, Backbone.Events);
-    e.listenTo(e, "foo", function(){ ok(true); });
-    e.trigger("foo");
+    e.listenTo(e, 'foo', function(){ assert.ok(true); });
+    e.trigger('foo');
     e.stopListening();
-    e.trigger("foo");
+    e.trigger('foo');
   });
 
-  test("listenTo with empty callback doesn't throw an error", 1, function(){
+  QUnit.test('stopListening cleans up references', function(assert) {
+    assert.expect(12);
+    var a = _.extend({}, Backbone.Events);
+    var b = _.extend({}, Backbone.Events);
+    var fn = function() {};
+    b.on('event', fn);
+    a.listenTo(b, 'event', fn).stopListening();
+    assert.equal(_.size(a._listeningTo), 0);
+    assert.equal(_.size(b._events.event), 1);
+    assert.equal(_.size(b._listeners), 0);
+    a.listenTo(b, 'event', fn).stopListening(b);
+    assert.equal(_.size(a._listeningTo), 0);
+    assert.equal(_.size(b._events.event), 1);
+    assert.equal(_.size(b._listeners), 0);
+    a.listenTo(b, 'event', fn).stopListening(b, 'event');
+    assert.equal(_.size(a._listeningTo), 0);
+    assert.equal(_.size(b._events.event), 1);
+    assert.equal(_.size(b._listeners), 0);
+    a.listenTo(b, 'event', fn).stopListening(b, 'event', fn);
+    assert.equal(_.size(a._listeningTo), 0);
+    assert.equal(_.size(b._events.event), 1);
+    assert.equal(_.size(b._listeners), 0);
+  });
+
+  QUnit.test('stopListening cleans up references from listenToOnce', function(assert) {
+    assert.expect(12);
+    var a = _.extend({}, Backbone.Events);
+    var b = _.extend({}, Backbone.Events);
+    var fn = function() {};
+    b.on('event', fn);
+    a.listenToOnce(b, 'event', fn).stopListening();
+    assert.equal(_.size(a._listeningTo), 0);
+    assert.equal(_.size(b._events.event), 1);
+    assert.equal(_.size(b._listeners), 0);
+    a.listenToOnce(b, 'event', fn).stopListening(b);
+    assert.equal(_.size(a._listeningTo), 0);
+    assert.equal(_.size(b._events.event), 1);
+    assert.equal(_.size(b._listeners), 0);
+    a.listenToOnce(b, 'event', fn).stopListening(b, 'event');
+    assert.equal(_.size(a._listeningTo), 0);
+    assert.equal(_.size(b._events.event), 1);
+    assert.equal(_.size(b._listeners), 0);
+    a.listenToOnce(b, 'event', fn).stopListening(b, 'event', fn);
+    assert.equal(_.size(a._listeningTo), 0);
+    assert.equal(_.size(b._events.event), 1);
+    assert.equal(_.size(b._listeners), 0);
+  });
+
+  QUnit.test('listenTo and off cleaning up references', function(assert) {
+    assert.expect(8);
+    var a = _.extend({}, Backbone.Events);
+    var b = _.extend({}, Backbone.Events);
+    var fn = function() {};
+    a.listenTo(b, 'event', fn);
+    b.off();
+    assert.equal(_.size(a._listeningTo), 0);
+    assert.equal(_.size(b._listeners), 0);
+    a.listenTo(b, 'event', fn);
+    b.off('event');
+    assert.equal(_.size(a._listeningTo), 0);
+    assert.equal(_.size(b._listeners), 0);
+    a.listenTo(b, 'event', fn);
+    b.off(null, fn);
+    assert.equal(_.size(a._listeningTo), 0);
+    assert.equal(_.size(b._listeners), 0);
+    a.listenTo(b, 'event', fn);
+    b.off(null, null, a);
+    assert.equal(_.size(a._listeningTo), 0);
+    assert.equal(_.size(b._listeners), 0);
+  });
+
+  QUnit.test('listenTo and stopListening cleaning up references', function(assert) {
+    assert.expect(2);
+    var a = _.extend({}, Backbone.Events);
+    var b = _.extend({}, Backbone.Events);
+    a.listenTo(b, 'all', function(){ assert.ok(true); });
+    b.trigger('anything');
+    a.listenTo(b, 'other', function(){ assert.ok(false); });
+    a.stopListening(b, 'other');
+    a.stopListening(b, 'all');
+    assert.equal(_.size(a._listeningTo), 0);
+  });
+
+  QUnit.test('listenToOnce without context cleans up references after the event has fired', function(assert) {
+    assert.expect(2);
+    var a = _.extend({}, Backbone.Events);
+    var b = _.extend({}, Backbone.Events);
+    a.listenToOnce(b, 'all', function(){ assert.ok(true); });
+    b.trigger('anything');
+    assert.equal(_.size(a._listeningTo), 0);
+  });
+
+  QUnit.test('listenToOnce with event maps cleans up references', function(assert) {
+    assert.expect(2);
+    var a = _.extend({}, Backbone.Events);
+    var b = _.extend({}, Backbone.Events);
+    a.listenToOnce(b, {
+      one: function() { assert.ok(true); },
+      two: function() { assert.ok(false); }
+    });
+    b.trigger('one');
+    assert.equal(_.size(a._listeningTo), 1);
+  });
+
+  QUnit.test('listenToOnce with event maps binds the correct `this`', function(assert) {
+    assert.expect(1);
+    var a = _.extend({}, Backbone.Events);
+    var b = _.extend({}, Backbone.Events);
+    a.listenToOnce(b, {
+      one: function() { assert.ok(this === a); },
+      two: function() { assert.ok(false); }
+    });
+    b.trigger('one');
+  });
+
+  QUnit.test("listenTo with empty callback doesn't throw an error", function(assert) {
+    assert.expect(1);
     var e = _.extend({}, Backbone.Events);
-    e.listenTo(e, "foo", null);
-    e.trigger("foo");
-    ok(true);
+    e.listenTo(e, 'foo', null);
+    e.trigger('foo');
+    assert.ok(true);
   });
 
-  test("trigger all for each event", 3, function() {
-    var a, b, obj = { counter: 0 };
+  QUnit.test('trigger all for each event', function(assert) {
+    assert.expect(3);
+    var a, b, obj = {counter: 0};
     _.extend(obj, Backbone.Events);
     obj.on('all', function(event) {
       obj.counter++;
-      if (event == 'a') a = true;
-      if (event == 'b') b = true;
+      if (event === 'a') a = true;
+      if (event === 'b') b = true;
     })
     .trigger('a b');
-    ok(a);
-    ok(b);
-    equal(obj.counter, 2);
+    assert.ok(a);
+    assert.ok(b);
+    assert.equal(obj.counter, 2);
   });
 
-  test("on, then unbind all functions", 1, function() {
-    var obj = { counter: 0 };
-    _.extend(obj,Backbone.Events);
+  QUnit.test('on, then unbind all functions', function(assert) {
+    assert.expect(1);
+    var obj = {counter: 0};
+    _.extend(obj, Backbone.Events);
     var callback = function() { obj.counter += 1; };
     obj.on('event', callback);
     obj.trigger('event');
     obj.off('event');
     obj.trigger('event');
-    equal(obj.counter, 1, 'counter should have only been incremented once.');
+    assert.equal(obj.counter, 1, 'counter should have only been incremented once.');
   });
 
-  test("bind two callbacks, unbind only one", 2, function() {
-    var obj = { counterA: 0, counterB: 0 };
-    _.extend(obj,Backbone.Events);
+  QUnit.test('bind two callbacks, unbind only one', function(assert) {
+    assert.expect(2);
+    var obj = {counterA: 0, counterB: 0};
+    _.extend(obj, Backbone.Events);
     var callback = function() { obj.counterA += 1; };
     obj.on('event', callback);
     obj.on('event', function() { obj.counterB += 1; });
     obj.trigger('event');
     obj.off('event', callback);
     obj.trigger('event');
-    equal(obj.counterA, 1, 'counterA should have only been incremented once.');
-    equal(obj.counterB, 2, 'counterB should have been incremented twice.');
+    assert.equal(obj.counterA, 1, 'counterA should have only been incremented once.');
+    assert.equal(obj.counterB, 2, 'counterB should have been incremented twice.');
   });
 
-  test("unbind a callback in the midst of it firing", 1, function() {
+  QUnit.test('unbind a callback in the midst of it firing', function(assert) {
+    assert.expect(1);
     var obj = {counter: 0};
     _.extend(obj, Backbone.Events);
     var callback = function() {
@@ -208,12 +399,13 @@ $(document).ready(function() {
     obj.trigger('event');
     obj.trigger('event');
     obj.trigger('event');
-    equal(obj.counter, 1, 'the callback should have been unbound.');
+    assert.equal(obj.counter, 1, 'the callback should have been unbound.');
   });
 
-  test("two binds that unbind themeselves", 2, function() {
-    var obj = { counterA: 0, counterB: 0 };
-    _.extend(obj,Backbone.Events);
+  QUnit.test('two binds that unbind themeselves', function(assert) {
+    assert.expect(2);
+    var obj = {counterA: 0, counterB: 0};
+    _.extend(obj, Backbone.Events);
     var incrA = function(){ obj.counterA += 1; obj.off('event', incrA); };
     var incrB = function(){ obj.counterB += 1; obj.off('event', incrB); };
     obj.on('event', incrA);
@@ -221,49 +413,64 @@ $(document).ready(function() {
     obj.trigger('event');
     obj.trigger('event');
     obj.trigger('event');
-    equal(obj.counterA, 1, 'counterA should have only been incremented once.');
-    equal(obj.counterB, 1, 'counterB should have only been incremented once.');
+    assert.equal(obj.counterA, 1, 'counterA should have only been incremented once.');
+    assert.equal(obj.counterB, 1, 'counterB should have only been incremented once.');
   });
 
-  test("bind a callback with a supplied context", 1, function () {
-    var TestClass = function () {
-      return this;
-    };
-    TestClass.prototype.assertTrue = function () {
-      ok(true, '`this` was bound to the callback');
-    };
+  QUnit.test('bind a callback with a default context when none supplied', function(assert) {
+    assert.expect(1);
+    var obj = _.extend({
+      assertTrue: function() {
+        assert.equal(this, obj, '`this` was bound to the callback');
+      }
+    }, Backbone.Events);
 
-    var obj = _.extend({},Backbone.Events);
-    obj.on('event', function () { this.assertTrue(); }, (new TestClass));
+    obj.once('event', obj.assertTrue);
     obj.trigger('event');
   });
 
-  test("nested trigger with unbind", 1, function () {
-    var obj = { counter: 0 };
+  QUnit.test('bind a callback with a supplied context', function(assert) {
+    assert.expect(1);
+    var TestClass = function() {
+      return this;
+    };
+    TestClass.prototype.assertTrue = function() {
+      assert.ok(true, '`this` was bound to the callback');
+    };
+
+    var obj = _.extend({}, Backbone.Events);
+    obj.on('event', function() { this.assertTrue(); }, new TestClass);
+    obj.trigger('event');
+  });
+
+  QUnit.test('nested trigger with unbind', function(assert) {
+    assert.expect(1);
+    var obj = {counter: 0};
     _.extend(obj, Backbone.Events);
     var incr1 = function(){ obj.counter += 1; obj.off('event', incr1); obj.trigger('event'); };
     var incr2 = function(){ obj.counter += 1; };
     obj.on('event', incr1);
     obj.on('event', incr2);
     obj.trigger('event');
-    equal(obj.counter, 3, 'counter should have been incremented three times');
+    assert.equal(obj.counter, 3, 'counter should have been incremented three times');
   });
 
-  test("callback list is not altered during trigger", 2, function () {
+  QUnit.test('callback list is not altered during trigger', function(assert) {
+    assert.expect(2);
     var counter = 0, obj = _.extend({}, Backbone.Events);
     var incr = function(){ counter++; };
-    obj.on('event', function(){ obj.on('event', incr).on('all', incr); })
-    .trigger('event');
-    equal(counter, 0, 'bind does not alter callback list');
-    obj.off()
-    .on('event', function(){ obj.off('event', incr).off('all', incr); })
-    .on('event', incr)
-    .on('all', incr)
-    .trigger('event');
-    equal(counter, 2, 'unbind does not alter callback list');
+    var incrOn = function(){ obj.on('event all', incr); };
+    var incrOff = function(){ obj.off('event all', incr); };
+
+    obj.on('event all', incrOn).trigger('event');
+    assert.equal(counter, 0, 'on does not alter callback list');
+
+    obj.off().on('event', incrOff).on('event all', incr).trigger('event');
+    assert.equal(counter, 2, 'off does not alter callback list');
   });
 
-  test("#1282 - 'all' callback list is retrieved after each event.", 1, function() {
+  QUnit.test("#1282 - 'all' callback list is retrieved after each event.", function(assert) {
+    assert.expect(1);
     var counter = 0;
     var obj = _.extend({}, Backbone.Events);
     var incr = function(){ counter++; };
@@ -271,61 +478,68 @@ $(document).ready(function() {
       obj.on('y', incr).on('all', incr);
     })
     .trigger('x y');
-    strictEqual(counter, 2);
+    assert.strictEqual(counter, 2);
   });
 
-  test("if no callback is provided, `on` is a noop", 0, function() {
+  QUnit.test('if no callback is provided, `on` is a noop', function(assert) {
+    assert.expect(0);
     _.extend({}, Backbone.Events).on('test').trigger('test');
   });
 
-  test("if callback is truthy but not a function, `on` should throw an error just like jQuery", 1, function() {
+  QUnit.test('if callback is truthy but not a function, `on` should throw an error just like jQuery', function(assert) {
+    assert.expect(1);
     var view = _.extend({}, Backbone.Events).on('test', 'noop');
-    throws(function() {
+    assert.raises(function() {
       view.trigger('test');
     });
   });
 
-  test("remove all events for a specific context", 4, function() {
+  QUnit.test('remove all events for a specific context', function(assert) {
+    assert.expect(4);
     var obj = _.extend({}, Backbone.Events);
-    obj.on('x y all', function() { ok(true); });
-    obj.on('x y all', function() { ok(false); }, obj);
+    obj.on('x y all', function() { assert.ok(true); });
+    obj.on('x y all', function() { assert.ok(false); }, obj);
     obj.off(null, null, obj);
     obj.trigger('x y');
   });
 
-  test("remove all events for a specific callback", 4, function() {
+  QUnit.test('remove all events for a specific callback', function(assert) {
+    assert.expect(4);
     var obj = _.extend({}, Backbone.Events);
-    var success = function() { ok(true); };
-    var fail = function() { ok(false); };
+    var success = function() { assert.ok(true); };
+    var fail = function() { assert.ok(false); };
     obj.on('x y all', success);
     obj.on('x y all', fail);
     obj.off(null, fail);
     obj.trigger('x y');
   });
 
-  test("#1310 - off does not skip consecutive events", 0, function() {
+  QUnit.test('#1310 - off does not skip consecutive events', function(assert) {
+    assert.expect(0);
     var obj = _.extend({}, Backbone.Events);
-    obj.on('event', function() { ok(false); }, obj);
-    obj.on('event', function() { ok(false); }, obj);
+    obj.on('event', function() { assert.ok(false); }, obj);
+    obj.on('event', function() { assert.ok(false); }, obj);
     obj.off(null, null, obj);
     obj.trigger('event');
   });
 
-  test("once", 2, function() {
+  QUnit.test('once', function(assert) {
+    assert.expect(2);
     // Same as the previous test, but we use once rather than having to explicitly unbind
-    var obj = { counterA: 0, counterB: 0 };
+    var obj = {counterA: 0, counterB: 0};
     _.extend(obj, Backbone.Events);
     var incrA = function(){ obj.counterA += 1; obj.trigger('event'); };
     var incrB = function(){ obj.counterB += 1; };
     obj.once('event', incrA);
     obj.once('event', incrB);
     obj.trigger('event');
-    equal(obj.counterA, 1, 'counterA should have only been incremented once.');
-    equal(obj.counterB, 1, 'counterB should have only been incremented once.');
+    assert.equal(obj.counterA, 1, 'counterA should have only been incremented once.');
+    assert.equal(obj.counterB, 1, 'counterB should have only been incremented once.');
   });
 
-  test("once variant one", 3, function() {
-    var f = function(){ ok(true); };
+  QUnit.test('once variant one', function(assert) {
+    assert.expect(3);
+    var f = function(){ assert.ok(true); };
 
     var a = _.extend({}, Backbone.Events).once('event', f);
     var b = _.extend({}, Backbone.Events).on('event', f);
@@ -336,8 +550,9 @@ $(document).ready(function() {
     b.trigger('event');
   });
 
-  test("once variant two", 3, function() {
-    var f = function(){ ok(true); };
+  QUnit.test('once variant two', function(assert) {
+    assert.expect(3);
+    var f = function(){ assert.ok(true); };
     var obj = _.extend({}, Backbone.Events);
 
     obj
@@ -347,8 +562,9 @@ $(document).ready(function() {
       .trigger('event');
   });
 
-  test("once with off", 0, function() {
-    var f = function(){ ok(true); };
+  QUnit.test('once with off', function(assert) {
+    assert.expect(0);
+    var f = function(){ assert.ok(true); };
     var obj = _.extend({}, Backbone.Events);
 
     obj.once('event', f);
@@ -356,8 +572,8 @@ $(document).ready(function() {
     obj.trigger('event');
   });
 
-  test("once with event maps", function() {
-    var obj = { counter: 0 };
+  QUnit.test('once with event maps', function(assert) {
+    var obj = {counter: 0};
     _.extend(obj, Backbone.Events);
 
     var increment = function() {
@@ -371,82 +587,120 @@ $(document).ready(function() {
     }, obj);
 
     obj.trigger('a');
-    equal(obj.counter, 1);
+    assert.equal(obj.counter, 1);
 
     obj.trigger('a b');
-    equal(obj.counter, 2);
+    assert.equal(obj.counter, 2);
 
     obj.trigger('c');
-    equal(obj.counter, 3);
+    assert.equal(obj.counter, 3);
 
     obj.trigger('a b c');
-    equal(obj.counter, 3);
+    assert.equal(obj.counter, 3);
   });
 
-  test("once with off only by context", 0, function() {
+  QUnit.test('bind a callback with a supplied context using once with object notation', function(assert) {
+    assert.expect(1);
+    var obj = {counter: 0};
+    var context = {};
+    _.extend(obj, Backbone.Events);
+
+    obj.once({
+      a: function() {
+        assert.strictEqual(this, context, 'defaults `context` to `callback` param');
+      }
+    }, context).trigger('a');
+  });
+
+  QUnit.test('once with off only by context', function(assert) {
+    assert.expect(0);
     var context = {};
     var obj = _.extend({}, Backbone.Events);
-    obj.once('event', function(){ ok(false); }, context);
+    obj.once('event', function(){ assert.ok(false); }, context);
     obj.off(null, null, context);
     obj.trigger('event');
   });
 
-  test("Backbone object inherits Events", function() {
-    ok(Backbone.on === Backbone.Events.on);
+  QUnit.test('Backbone object inherits Events', function(assert) {
+    assert.ok(Backbone.on === Backbone.Events.on);
   });
 
-  asyncTest("once with asynchronous events", 1, function() {
-    var func = _.debounce(function() { ok(true); start(); }, 50);
+  QUnit.test('once with asynchronous events', function(assert) {
+    var done = assert.async();
+    assert.expect(1);
+    var func = _.debounce(function() { assert.ok(true); done(); }, 50);
     var obj = _.extend({}, Backbone.Events).once('async', func);
 
     obj.trigger('async');
     obj.trigger('async');
   });
 
-  test("once with multiple events.", 2, function() {
+  QUnit.test('once with multiple events.', function(assert) {
+    assert.expect(2);
     var obj = _.extend({}, Backbone.Events);
-    obj.once('x y', function() { ok(true); });
+    obj.once('x y', function() { assert.ok(true); });
     obj.trigger('x y');
   });
 
-  test("Off during iteration with once.", 2, function() {
+  QUnit.test('Off during iteration with once.', function(assert) {
+    assert.expect(2);
     var obj = _.extend({}, Backbone.Events);
     var f = function(){ this.off('event', f); };
     obj.on('event', f);
     obj.once('event', function(){});
-    obj.on('event', function(){ ok(true); });
+    obj.on('event', function(){ assert.ok(true); });
 
     obj.trigger('event');
     obj.trigger('event');
   });
 
-  test("`once` on `all` should work as expected", 1, function() {
+  QUnit.test('`once` on `all` should work as expected', function(assert) {
+    assert.expect(1);
     Backbone.once('all', function() {
-      ok(true);
+      assert.ok(true);
       Backbone.trigger('all');
     });
     Backbone.trigger('all');
   });
 
-  test("once without a callback is a noop", 0, function() {
+  QUnit.test('once without a callback is a noop', function(assert) {
+    assert.expect(0);
     _.extend({}, Backbone.Events).once('event').trigger('event');
   });
 
-  test("event functions are chainable", function() {
+  QUnit.test('listenToOnce without a callback is a noop', function(assert) {
+    assert.expect(0);
+    var obj = _.extend({}, Backbone.Events);
+    obj.listenToOnce(obj, 'event').trigger('event');
+  });
+
+  QUnit.test('event functions are chainable', function(assert) {
     var obj = _.extend({}, Backbone.Events);
     var obj2 = _.extend({}, Backbone.Events);
     var fn = function() {};
-    equal(obj, obj.trigger('noeventssetyet'));
-    equal(obj, obj.off('noeventssetyet'));
-    equal(obj, obj.stopListening('noeventssetyet'));
-    equal(obj, obj.on('a', fn));
-    equal(obj, obj.once('c', fn));
-    equal(obj, obj.trigger('a'));
-    equal(obj, obj.listenTo(obj2, 'a', fn));
-    equal(obj, obj.listenToOnce(obj2, 'b', fn));
-    equal(obj, obj.off('a c'));
-    equal(obj, obj.stopListening(obj2, 'a'));
-    equal(obj, obj.stopListening());
+    assert.equal(obj, obj.trigger('noeventssetyet'));
+    assert.equal(obj, obj.off('noeventssetyet'));
+    assert.equal(obj, obj.stopListening('noeventssetyet'));
+    assert.equal(obj, obj.on('a', fn));
+    assert.equal(obj, obj.once('c', fn));
+    assert.equal(obj, obj.trigger('a'));
+    assert.equal(obj, obj.listenTo(obj2, 'a', fn));
+    assert.equal(obj, obj.listenToOnce(obj2, 'b', fn));
+    assert.equal(obj, obj.off('a c'));
+    assert.equal(obj, obj.stopListening(obj2, 'a'));
+    assert.equal(obj, obj.stopListening());
   });
 
-});
+  QUnit.test('#3448 - listenToOnce with space-separated events', function(assert) {
+    assert.expect(2);
+    var one = _.extend({}, Backbone.Events);
+    var two = _.extend({}, Backbone.Events);
+    var count = 1;
+    one.listenToOnce(two, 'x y', function(n) { assert.ok(n === count++); });
+    two.trigger('x', 1);
+    two.trigger('x', 1);
+    two.trigger('y', 2);
+    two.trigger('y', 2);
+  });
+
+})(QUnit);

vendor/backbone/test/noconflict.js

@@ -1,12 +1,13 @@
-$(document).ready(function() {
+(function(QUnit) {
 
-  module("Backbone.noConflict");
+  QUnit.module('Backbone.noConflict');
 
-  test('noConflict', 2, function() {
+  QUnit.test('noConflict', function(assert) {
+    assert.expect(2);
     var noconflictBackbone = Backbone.noConflict();
-    equal(window.Backbone, undefined, 'Returned window.Backbone');
+    assert.equal(window.Backbone, undefined, 'Returned window.Backbone');
     window.Backbone = noconflictBackbone;
-    equal(window.Backbone, noconflictBackbone, 'Backbone is still pointing to the original Backbone');
+    assert.equal(window.Backbone, noconflictBackbone, 'Backbone is still pointing to the original Backbone');
   });
 
-});
+})(QUnit);

vendor/backbone/test/setup/dom-setup.js

@@ -0,0 +1,4 @@
+$('body').append(
+    '<div id="qunit"></div>' +
+    '<div id="qunit-fixture"></div>'
+);

vendor/backbone/test/setup/environment.js

@@ -0,0 +1,45 @@
+(function(QUnit) {
+
+  var sync = Backbone.sync;
+  var ajax = Backbone.ajax;
+  var emulateHTTP = Backbone.emulateHTTP;
+  var emulateJSON = Backbone.emulateJSON;
+  var history = window.history;
+  var pushState = history.pushState;
+  var replaceState = history.replaceState;
+
+  QUnit.config.noglobals = true;
+
+  QUnit.testStart(function() {
+    var env = QUnit.config.current.testEnvironment;
+
+    // We never want to actually call these during tests.
+    history.pushState = history.replaceState = function() {};
+
+    // Capture ajax settings for comparison.
+    Backbone.ajax = function(settings) {
+      env.ajaxSettings = settings;
+    };
+
+    // Capture the arguments to Backbone.sync for comparison.
+    Backbone.sync = function(method, model, options) {
+      env.syncArgs = {
+        method: method,
+        model: model,
+        options: options
+      };
+      sync.apply(this, arguments);
+    };
+
+  });
+
+  QUnit.testDone(function() {
+    Backbone.sync = sync;
+    Backbone.ajax = ajax;
+    Backbone.emulateHTTP = emulateHTTP;
+    Backbone.emulateJSON = emulateJSON;
+    history.pushState = pushState;
+    history.replaceState = replaceState;
+  });
+
+})(QUnit);

vendor/backbone/test/sync.js

@@ -1,212 +1,239 @@
-$(document).ready(function() {
+(function(QUnit) {
 
   var Library = Backbone.Collection.extend({
-    url : function() { return '/library'; }
+    url: function() { return '/library'; }
   });
   var library;
 
   var attrs = {
-    title  : "The Tempest",
-    author : "Bill Shakespeare",
-    length : 123
+    title: 'The Tempest',
+    author: 'Bill Shakespeare',
+    length: 123
   };
 
-  module("Backbone.sync", _.extend(new Environment, {
+  QUnit.module('Backbone.sync', {
 
-    setup : function() {
-      Environment.prototype.setup.apply(this, arguments);
+    beforeEach: function(assert) {
       library = new Library;
       library.create(attrs, {wait: false});
     },
 
-    teardown: function() {
-      Environment.prototype.teardown.apply(this, arguments);
+    afterEach: function(assert) {
       Backbone.emulateHTTP = false;
     }
 
-  }));
+  });
 
-  test("read", 4, function() {
+  QUnit.test('read', function(assert) {
+    assert.expect(4);
     library.fetch();
-    equal(this.ajaxSettings.url, '/library');
-    equal(this.ajaxSettings.type, 'GET');
-    equal(this.ajaxSettings.dataType, 'json');
-    ok(_.isEmpty(this.ajaxSettings.data));
+    assert.equal(this.ajaxSettings.url, '/library');
+    assert.equal(this.ajaxSettings.type, 'GET');
+    assert.equal(this.ajaxSettings.dataType, 'json');
+    assert.ok(_.isEmpty(this.ajaxSettings.data));
   });
 
-  test("passing data", 3, function() {
+  QUnit.test('passing data', function(assert) {
+    assert.expect(3);
     library.fetch({data: {a: 'a', one: 1}});
-    equal(this.ajaxSettings.url, '/library');
-    equal(this.ajaxSettings.data.a, 'a');
-    equal(this.ajaxSettings.data.one, 1);
+    assert.equal(this.ajaxSettings.url, '/library');
+    assert.equal(this.ajaxSettings.data.a, 'a');
+    assert.equal(this.ajaxSettings.data.one, 1);
   });
 
-  test("create", 6, function() {
-    equal(this.ajaxSettings.url, '/library');
-    equal(this.ajaxSettings.type, 'POST');
-    equal(this.ajaxSettings.dataType, 'json');
+  QUnit.test('create', function(assert) {
+    assert.expect(6);
+    assert.equal(this.ajaxSettings.url, '/library');
+    assert.equal(this.ajaxSettings.type, 'POST');
+    assert.equal(this.ajaxSettings.dataType, 'json');
     var data = JSON.parse(this.ajaxSettings.data);
-    equal(data.title, 'The Tempest');
-    equal(data.author, 'Bill Shakespeare');
-    equal(data.length, 123);
+    assert.equal(data.title, 'The Tempest');
+    assert.equal(data.author, 'Bill Shakespeare');
+    assert.equal(data.length, 123);
   });
 
-  test("update", 7, function() {
+  QUnit.test('update', function(assert) {
+    assert.expect(7);
     library.first().save({id: '1-the-tempest', author: 'William Shakespeare'});
-    equal(this.ajaxSettings.url, '/library/1-the-tempest');
-    equal(this.ajaxSettings.type, 'PUT');
-    equal(this.ajaxSettings.dataType, 'json');
+    assert.equal(this.ajaxSettings.url, '/library/1-the-tempest');
+    assert.equal(this.ajaxSettings.type, 'PUT');
+    assert.equal(this.ajaxSettings.dataType, 'json');
     var data = JSON.parse(this.ajaxSettings.data);
-    equal(data.id, '1-the-tempest');
-    equal(data.title, 'The Tempest');
-    equal(data.author, 'William Shakespeare');
-    equal(data.length, 123);
+    assert.equal(data.id, '1-the-tempest');
+    assert.equal(data.title, 'The Tempest');
+    assert.equal(data.author, 'William Shakespeare');
+    assert.equal(data.length, 123);
   });
 
-  test("update with emulateHTTP and emulateJSON", 7, function() {
+  QUnit.test('update with emulateHTTP and emulateJSON', function(assert) {
+    assert.expect(7);
     library.first().save({id: '2-the-tempest', author: 'Tim Shakespeare'}, {
       emulateHTTP: true,
       emulateJSON: true
     });
-    equal(this.ajaxSettings.url, '/library/2-the-tempest');
-    equal(this.ajaxSettings.type, 'POST');
-    equal(this.ajaxSettings.dataType, 'json');
-    equal(this.ajaxSettings.data._method, 'PUT');
+    assert.equal(this.ajaxSettings.url, '/library/2-the-tempest');
+    assert.equal(this.ajaxSettings.type, 'POST');
+    assert.equal(this.ajaxSettings.dataType, 'json');
+    assert.equal(this.ajaxSettings.data._method, 'PUT');
     var data = JSON.parse(this.ajaxSettings.data.model);
-    equal(data.id, '2-the-tempest');
-    equal(data.author, 'Tim Shakespeare');
-    equal(data.length, 123);
+    assert.equal(data.id, '2-the-tempest');
+    assert.equal(data.author, 'Tim Shakespeare');
+    assert.equal(data.length, 123);
   });
 
-  test("update with just emulateHTTP", 6, function() {
+  QUnit.test('update with just emulateHTTP', function(assert) {
+    assert.expect(6);
     library.first().save({id: '2-the-tempest', author: 'Tim Shakespeare'}, {
       emulateHTTP: true
     });
-    equal(this.ajaxSettings.url, '/library/2-the-tempest');
-    equal(this.ajaxSettings.type, 'POST');
-    equal(this.ajaxSettings.contentType, 'application/json');
+    assert.equal(this.ajaxSettings.url, '/library/2-the-tempest');
+    assert.equal(this.ajaxSettings.type, 'POST');
+    assert.equal(this.ajaxSettings.contentType, 'application/json');
     var data = JSON.parse(this.ajaxSettings.data);
-    equal(data.id, '2-the-tempest');
-    equal(data.author, 'Tim Shakespeare');
-    equal(data.length, 123);
+    assert.equal(data.id, '2-the-tempest');
+    assert.equal(data.author, 'Tim Shakespeare');
+    assert.equal(data.length, 123);
   });
 
-  test("update with just emulateJSON", 6, function() {
+  QUnit.test('update with just emulateJSON', function(assert) {
+    assert.expect(6);
     library.first().save({id: '2-the-tempest', author: 'Tim Shakespeare'}, {
       emulateJSON: true
     });
-    equal(this.ajaxSettings.url, '/library/2-the-tempest');
-    equal(this.ajaxSettings.type, 'PUT');
-    equal(this.ajaxSettings.contentType, 'application/x-www-form-urlencoded');
+    assert.equal(this.ajaxSettings.url, '/library/2-the-tempest');
+    assert.equal(this.ajaxSettings.type, 'PUT');
+    assert.equal(this.ajaxSettings.contentType, 'application/x-www-form-urlencoded');
     var data = JSON.parse(this.ajaxSettings.data.model);
-    equal(data.id, '2-the-tempest');
-    equal(data.author, 'Tim Shakespeare');
-    equal(data.length, 123);
+    assert.equal(data.id, '2-the-tempest');
+    assert.equal(data.author, 'Tim Shakespeare');
+    assert.equal(data.length, 123);
   });
 
-  test("read model", 3, function() {
+  QUnit.test('read model', function(assert) {
+    assert.expect(3);
     library.first().save({id: '2-the-tempest', author: 'Tim Shakespeare'});
     library.first().fetch();
-    equal(this.ajaxSettings.url, '/library/2-the-tempest');
-    equal(this.ajaxSettings.type, 'GET');
-    ok(_.isEmpty(this.ajaxSettings.data));
+    assert.equal(this.ajaxSettings.url, '/library/2-the-tempest');
+    assert.equal(this.ajaxSettings.type, 'GET');
+    assert.ok(_.isEmpty(this.ajaxSettings.data));
   });
 
-  test("destroy", 3, function() {
+  QUnit.test('destroy', function(assert) {
+    assert.expect(3);
     library.first().save({id: '2-the-tempest', author: 'Tim Shakespeare'});
     library.first().destroy({wait: true});
-    equal(this.ajaxSettings.url, '/library/2-the-tempest');
-    equal(this.ajaxSettings.type, 'DELETE');
-    equal(this.ajaxSettings.data, null);
+    assert.equal(this.ajaxSettings.url, '/library/2-the-tempest');
+    assert.equal(this.ajaxSettings.type, 'DELETE');
+    assert.equal(this.ajaxSettings.data, null);
   });
 
-  test("destroy with emulateHTTP", 3, function() {
+  QUnit.test('destroy with emulateHTTP', function(assert) {
+    assert.expect(3);
     library.first().save({id: '2-the-tempest', author: 'Tim Shakespeare'});
     library.first().destroy({
       emulateHTTP: true,
       emulateJSON: true
     });
-    equal(this.ajaxSettings.url, '/library/2-the-tempest');
-    equal(this.ajaxSettings.type, 'POST');
-    equal(JSON.stringify(this.ajaxSettings.data), '{"_method":"DELETE"}');
+    assert.equal(this.ajaxSettings.url, '/library/2-the-tempest');
+    assert.equal(this.ajaxSettings.type, 'POST');
+    assert.equal(JSON.stringify(this.ajaxSettings.data), '{"_method":"DELETE"}');
   });
 
-  test("urlError", 2, function() {
+  QUnit.test('urlError', function(assert) {
+    assert.expect(2);
     var model = new Backbone.Model();
-    raises(function() {
+    assert.raises(function() {
       model.fetch();
     });
     model.fetch({url: '/one/two'});
-    equal(this.ajaxSettings.url, '/one/two');
+    assert.equal(this.ajaxSettings.url, '/one/two');
   });
 
-  test("#1052 - `options` is optional.", 0, function() {
+  QUnit.test('#1052 - `options` is optional.', function(assert) {
+    assert.expect(0);
     var model = new Backbone.Model();
     model.url = '/test';
     Backbone.sync('create', model);
   });
 
-  test("Backbone.ajax", 1, function() {
-    Backbone.ajax = function(settings){
-      strictEqual(settings.url, '/test');
+  QUnit.test('Backbone.ajax', function(assert) {
+    assert.expect(1);
+    Backbone.ajax = function(settings) {
+      assert.strictEqual(settings.url, '/test');
     };
     var model = new Backbone.Model();
     model.url = '/test';
     Backbone.sync('create', model);
   });
 
-  test("Call provided error callback on error.", 1, function() {
+  QUnit.test('Call provided error callback on error.', function(assert) {
+    assert.expect(1);
     var model = new Backbone.Model;
     model.url = '/test';
     Backbone.sync('read', model, {
-      error: function() { ok(true); }
+      error: function() { assert.ok(true); }
     });
     this.ajaxSettings.error();
   });
 
-  test('Use Backbone.emulateHTTP as default.', 2, function() {
+  QUnit.test('Use Backbone.emulateHTTP as default.', function(assert) {
+    assert.expect(2);
     var model = new Backbone.Model;
     model.url = '/test';
 
     Backbone.emulateHTTP = true;
     model.sync('create', model);
-    strictEqual(this.ajaxSettings.emulateHTTP, true);
+    assert.strictEqual(this.ajaxSettings.emulateHTTP, true);
 
     Backbone.emulateHTTP = false;
     model.sync('create', model);
-    strictEqual(this.ajaxSettings.emulateHTTP, false);
+    assert.strictEqual(this.ajaxSettings.emulateHTTP, false);
   });
 
-  test('Use Backbone.emulateJSON as default.', 2, function() {
+  QUnit.test('Use Backbone.emulateJSON as default.', function(assert) {
+    assert.expect(2);
     var model = new Backbone.Model;
     model.url = '/test';
 
     Backbone.emulateJSON = true;
     model.sync('create', model);
-    strictEqual(this.ajaxSettings.emulateJSON, true);
+    assert.strictEqual(this.ajaxSettings.emulateJSON, true);
 
     Backbone.emulateJSON = false;
     model.sync('create', model);
-    strictEqual(this.ajaxSettings.emulateJSON, false);
+    assert.strictEqual(this.ajaxSettings.emulateJSON, false);
   });
 
-  test("#1756 - Call user provided beforeSend function.", 4, function() {
+  QUnit.test('#1756 - Call user provided beforeSend function.', function(assert) {
+    assert.expect(4);
     Backbone.emulateHTTP = true;
     var model = new Backbone.Model;
     model.url = '/test';
     var xhr = {
       setRequestHeader: function(header, value) {
-        strictEqual(header, 'X-HTTP-Method-Override');
-        strictEqual(value, 'DELETE');
+        assert.strictEqual(header, 'X-HTTP-Method-Override');
+        assert.strictEqual(value, 'DELETE');
       }
     };
     model.sync('delete', model, {
       beforeSend: function(_xhr) {
-        ok(_xhr === xhr);
+        assert.ok(_xhr === xhr);
         return false;
       }
     });
-    strictEqual(this.ajaxSettings.beforeSend(xhr), false);
+    assert.strictEqual(this.ajaxSettings.beforeSend(xhr), false);
   });
 
-});
+  QUnit.test('#2928 - Pass along `textStatus` and `errorThrown`.', function(assert) {
+    assert.expect(2);
+    var model = new Backbone.Model;
+    model.url = '/test';
+    model.on('error', function(m, xhr, options) {
+      assert.strictEqual(options.textStatus, 'textStatus');
+      assert.strictEqual(options.errorThrown, 'errorThrown');
+    });
+    model.fetch();
+    this.ajaxSettings.error({}, 'textStatus', 'errorThrown');
+  });
+
+})(QUnit);

vendor/backbone/test/view.js

@@ -1,71 +1,137 @@
-$(document).ready(function() {
+(function(QUnit) {
 
   var view;
 
-  module("Backbone.View", {
+  QUnit.module('Backbone.View', {
+
+    beforeEach: function() {
+      $('#qunit-fixture').append(
+        '<div id="testElement"><h1>Test</h1></div>'
+     );
 
-    setup: function() {
       view = new Backbone.View({
-        id        : 'test-view',
-        className : 'test-view',
-        other     : 'non-special-option'
+        id: 'test-view',
+        className: 'test-view',
+        other: 'non-special-option'
       });
+    },
+
+    afterEach: function() {
+      $('#testElement').remove();
+      $('#test-view').remove();
     }
 
   });
 
-  test("constructor", 6, function() {
-    equal(view.el.id, 'test-view');
-    equal(view.el.className, 'test-view');
-    equal(view.el.other, void 0);
-    equal(view.options.id, 'test-view');
-    equal(view.options.className, 'test-view');
-    equal(view.options.other, 'non-special-option');
+  QUnit.test('constructor', function(assert) {
+    assert.expect(3);
+    assert.equal(view.el.id, 'test-view');
+    assert.equal(view.el.className, 'test-view');
+    assert.equal(view.el.other, void 0);
   });
 
-  test("jQuery", 1, function() {
-    var view = new Backbone.View;
-    view.setElement('<p><a><b>test</b></a></p>');
-    strictEqual(view.$('a b').html(), 'test');
+  QUnit.test('$', function(assert) {
+    assert.expect(2);
+    var myView = new Backbone.View;
+    myView.setElement('<p><a><b>test</b></a></p>');
+    var result = myView.$('a b');
+
+    assert.strictEqual(result[0].innerHTML, 'test');
+    assert.ok(result.length === +result.length);
   });
 
-  test("initialize", 1, function() {
+  QUnit.test('$el', function(assert) {
+    assert.expect(3);
+    var myView = new Backbone.View;
+    myView.setElement('<p><a><b>test</b></a></p>');
+    assert.strictEqual(myView.el.nodeType, 1);
+
+    assert.ok(myView.$el instanceof Backbone.$);
+    assert.strictEqual(myView.$el[0], myView.el);
+  });
+
+  QUnit.test('initialize', function(assert) {
+    assert.expect(1);
     var View = Backbone.View.extend({
       initialize: function() {
         this.one = 1;
       }
     });
 
-    strictEqual(new View().one, 1);
+    assert.strictEqual(new View().one, 1);
   });
 
-  test("delegateEvents", 6, function() {
+  QUnit.test('preinitialize', function(assert) {
+    assert.expect(1);
+    var View = Backbone.View.extend({
+      preinitialize: function() {
+        this.one = 1;
+      }
+    });
+
+    assert.strictEqual(new View().one, 1);
+  });
+
+  QUnit.test('preinitialize occurs before the view is set up', function(assert) {
+    assert.expect(2);
+    var View = Backbone.View.extend({
+      preinitialize: function() {
+        assert.equal(this.el, undefined);
+      }
+    });
+    var _view = new View({});
+    assert.notEqual(_view.el, undefined);
+  });
+
+  QUnit.test('render', function(assert) {
+    assert.expect(1);
+    var myView = new Backbone.View;
+    assert.equal(myView.render(), myView, '#render returns the view instance');
+  });
+
+  QUnit.test('delegateEvents', function(assert) {
+    assert.expect(6);
     var counter1 = 0, counter2 = 0;
 
-    var view = new Backbone.View({el: '<p><a id="test"></a></p>'});
-    view.increment = function(){ counter1++; };
-    view.$el.on('click', function(){ counter2++; });
+    var myView = new Backbone.View({el: '#testElement'});
+    myView.increment = function() { counter1++; };
+    myView.$el.on('click', function() { counter2++; });
 
-    var events = {'click #test': 'increment'};
+    var events = {'click h1': 'increment'};
 
-    view.delegateEvents(events);
-    view.$('#test').trigger('click');
-    equal(counter1, 1);
-    equal(counter2, 1);
+    myView.delegateEvents(events);
+    myView.$('h1').trigger('click');
+    assert.equal(counter1, 1);
+    assert.equal(counter2, 1);
 
-    view.$('#test').trigger('click');
-    equal(counter1, 2);
-    equal(counter2, 2);
+    myView.$('h1').trigger('click');
+    assert.equal(counter1, 2);
+    assert.equal(counter2, 2);
 
-    view.delegateEvents(events);
-    view.$('#test').trigger('click');
-    equal(counter1, 3);
-    equal(counter2, 3);
+    myView.delegateEvents(events);
+    myView.$('h1').trigger('click');
+    assert.equal(counter1, 3);
+    assert.equal(counter2, 3);
   });
 
-  test("delegateEvents allows functions for callbacks", 3, function() {
-    var view = new Backbone.View({el: '<p></p>'});
-    view.counter = 0;
+  QUnit.test('delegate', function(assert) {
+    assert.expect(3);
+    var myView = new Backbone.View({el: '#testElement'});
+    myView.delegate('click', 'h1', function() {
+      assert.ok(true);
+    });
+    myView.delegate('click', function() {
+      assert.ok(true);
+    });
+    myView.$('h1').trigger('click');
+
+    assert.equal(myView.delegate(), myView, '#delegate returns the view instance');
+  });
+
+  QUnit.test('delegateEvents allows functions for callbacks', function(assert) {
+    assert.expect(3);
+    var myView = new Backbone.View({el: '<p></p>'});
+    myView.counter = 0;
 
     var events = {
       click: function() {
@@ -73,76 +139,147 @@ $(document).ready(function() {
       }
     };
 
-    view.delegateEvents(events);
-    view.$el.trigger('click');
-    equal(view.counter, 1);
+    myView.delegateEvents(events);
+    myView.$el.trigger('click');
+    assert.equal(myView.counter, 1);
 
-    view.$el.trigger('click');
-    equal(view.counter, 2);
+    myView.$el.trigger('click');
+    assert.equal(myView.counter, 2);
 
-    view.delegateEvents(events);
-    view.$el.trigger('click');
-    equal(view.counter, 3);
+    myView.delegateEvents(events);
+    myView.$el.trigger('click');
+    assert.equal(myView.counter, 3);
   });
 
-
-  test("delegateEvents ignore undefined methods", 0, function() {
-    var view = new Backbone.View({el: '<p></p>'});
-    view.delegateEvents({'click': 'undefinedMethod'});
-    view.$el.trigger('click');
+  QUnit.test('delegateEvents ignore undefined methods', function(assert) {
+    assert.expect(0);
+    var myView = new Backbone.View({el: '<p></p>'});
+    myView.delegateEvents({click: 'undefinedMethod'});
+    myView.$el.trigger('click');
   });
 
-  test("undelegateEvents", 6, function() {
+  QUnit.test('undelegateEvents', function(assert) {
+    assert.expect(7);
     var counter1 = 0, counter2 = 0;
 
-    var view = new Backbone.View({el: '<p><a id="test"></a></p>'});
-    view.increment = function(){ counter1++; };
-    view.$el.on('click', function(){ counter2++; });
+    var myView = new Backbone.View({el: '#testElement'});
+    myView.increment = function() { counter1++; };
+    myView.$el.on('click', function() { counter2++; });
 
-    var events = {'click #test': 'increment'};
+    var events = {'click h1': 'increment'};
 
-    view.delegateEvents(events);
-    view.$('#test').trigger('click');
-    equal(counter1, 1);
-    equal(counter2, 1);
+    myView.delegateEvents(events);
+    myView.$('h1').trigger('click');
+    assert.equal(counter1, 1);
+    assert.equal(counter2, 1);
 
-    view.undelegateEvents();
-    view.$('#test').trigger('click');
-    equal(counter1, 1);
-    equal(counter2, 2);
+    myView.undelegateEvents();
+    myView.$('h1').trigger('click');
+    assert.equal(counter1, 1);
+    assert.equal(counter2, 2);
 
-    view.delegateEvents(events);
-    view.$('#test').trigger('click');
-    equal(counter1, 2);
-    equal(counter2, 3);
+    myView.delegateEvents(events);
+    myView.$('h1').trigger('click');
+    assert.equal(counter1, 2);
+    assert.equal(counter2, 3);
+
+    assert.equal(myView.undelegateEvents(), myView, '#undelegateEvents returns the view instance');
   });
 
-  test("_ensureElement with DOM node el", 1, function() {
+  QUnit.test('undelegate', function(assert) {
+    assert.expect(1);
+    var myView = new Backbone.View({el: '#testElement'});
+    myView.delegate('click', function() { assert.ok(false); });
+    myView.delegate('click', 'h1', function() { assert.ok(false); });
+
+    myView.undelegate('click');
+
+    myView.$('h1').trigger('click');
+    myView.$el.trigger('click');
+
+    assert.equal(myView.undelegate(), myView, '#undelegate returns the view instance');
+  });
+
+  QUnit.test('undelegate with passed handler', function(assert) {
+    assert.expect(1);
+    var myView = new Backbone.View({el: '#testElement'});
+    var listener = function() { assert.ok(false); };
+    myView.delegate('click', listener);
+    myView.delegate('click', function() { assert.ok(true); });
+    myView.undelegate('click', listener);
+    myView.$el.trigger('click');
+  });
+
+  QUnit.test('undelegate with selector', function(assert) {
+    assert.expect(2);
+    var myView = new Backbone.View({el: '#testElement'});
+    myView.delegate('click', function() { assert.ok(true); });
+    myView.delegate('click', 'h1', function() { assert.ok(false); });
+    myView.undelegate('click', 'h1');
+    myView.$('h1').trigger('click');
+    myView.$el.trigger('click');
+  });
+
+  QUnit.test('undelegate with handler and selector', function(assert) {
+    assert.expect(2);
+    var myView = new Backbone.View({el: '#testElement'});
+    myView.delegate('click', function() { assert.ok(true); });
+    var handler = function() { assert.ok(false); };
+    myView.delegate('click', 'h1', handler);
+    myView.undelegate('click', 'h1', handler);
+    myView.$('h1').trigger('click');
+    myView.$el.trigger('click');
+  });
+
+  QUnit.test('tagName can be provided as a string', function(assert) {
+    assert.expect(1);
+    var View = Backbone.View.extend({
+      tagName: 'span'
+    });
+
+    assert.equal(new View().el.tagName, 'SPAN');
+  });
+
+  QUnit.test('tagName can be provided as a function', function(assert) {
+    assert.expect(1);
+    var View = Backbone.View.extend({
+      tagName: function() {
+        return 'p';
+      }
+    });
+
+    assert.ok(new View().$el.is('p'));
+  });
+
+  QUnit.test('_ensureElement with DOM node el', function(assert) {
+    assert.expect(1);
     var View = Backbone.View.extend({
       el: document.body
     });
 
-    equal(new View().el, document.body);
+    assert.equal(new View().el, document.body);
   });
 
-  test("_ensureElement with string el", 3, function() {
+  QUnit.test('_ensureElement with string el', function(assert) {
+    assert.expect(3);
     var View = Backbone.View.extend({
-      el: "body"
+      el: 'body'
     });
-    strictEqual(new View().el, document.body);
+    assert.strictEqual(new View().el, document.body);
 
     View = Backbone.View.extend({
-      el: "#testElement > h1"
+      el: '#testElement > h1'
     });
-    strictEqual(new View().el, $("#testElement > h1").get(0));
+    assert.strictEqual(new View().el, $('#testElement > h1').get(0));
 
     View = Backbone.View.extend({
-      el: "#nonexistent"
+      el: '#nonexistent'
     });
-    ok(!new View().el);
+    assert.ok(!new View().el);
   });
 
-  test("with className and id functions", 2, function() {
+  QUnit.test('with className and id functions', function(assert) {
+    assert.expect(2);
     var View = Backbone.View.extend({
       className: function() {
         return 'className';
@@ -152,57 +289,54 @@ $(document).ready(function() {
       }
     });
 
-    strictEqual(new View().el.className, 'className');
-    strictEqual(new View().el.id, 'id');
+    assert.strictEqual(new View().el.className, 'className');
+    assert.strictEqual(new View().el.id, 'id');
   });
 
-  test("with options function", 3, function() {
-    var View1 = Backbone.View.extend({
-      options: function() {
-        return {
-          title: 'title1',
-          acceptText: 'confirm'
-        };
-      }
-    });
-
-    var View2 = View1.extend({
-      options: function() {
-        return _.extend(View1.prototype.options.call(this), {
-          title: 'title2',
-          fixed: true
-        });
-      }
-    });
-
-    strictEqual(new View2().options.title, 'title2');
-    strictEqual(new View2().options.acceptText, 'confirm');
-    strictEqual(new View2().options.fixed, true);
-  });
-
-  test("with attributes", 2, function() {
+  QUnit.test('with attributes', function(assert) {
+    assert.expect(2);
     var View = Backbone.View.extend({
       attributes: {
-        id: 'id',
+        'id': 'id',
         'class': 'class'
       }
     });
 
-    strictEqual(new View().el.className, 'class');
-    strictEqual(new View().el.id, 'id');
+    assert.strictEqual(new View().el.className, 'class');
+    assert.strictEqual(new View().el.id, 'id');
   });
 
-  test("with attributes as a function", 1, function() {
+  QUnit.test('with attributes as a function', function(assert) {
+    assert.expect(1);
     var View = Backbone.View.extend({
       attributes: function() {
         return {'class': 'dynamic'};
       }
     });
 
-    strictEqual(new View().el.className, 'dynamic');
+    assert.strictEqual(new View().el.className, 'dynamic');
   });
 
-  test("multiple views per element", 3, function() {
+  QUnit.test('should default to className/id properties', function(assert) {
+    assert.expect(4);
+    var View = Backbone.View.extend({
+      className: 'backboneClass',
+      id: 'backboneId',
+      attributes: {
+        'class': 'attributeClass',
+        'id': 'attributeId'
+      }
+    });
+
+    var myView = new View;
+    assert.strictEqual(myView.el.className, 'backboneClass');
+    assert.strictEqual(myView.el.id, 'backboneId');
+    assert.strictEqual(myView.$el.attr('class'), 'backboneClass');
+    assert.strictEqual(myView.$el.attr('id'), 'backboneId');
+  });
+
+  QUnit.test('multiple views per element', function(assert) {
+    assert.expect(3);
     var count = 0;
     var $el = $('<p></p>');
 
@@ -216,142 +350,167 @@ $(document).ready(function() {
     });
 
     var view1 = new View;
-    $el.trigger("click");
-    equal(1, count);
+    $el.trigger('click');
+    assert.equal(1, count);
 
     var view2 = new View;
-    $el.trigger("click");
-    equal(3, count);
+    $el.trigger('click');
+    assert.equal(3, count);
 
     view1.delegateEvents();
-    $el.trigger("click");
-    equal(5, count);
+    $el.trigger('click');
+    assert.equal(5, count);
   });
 
-  test("custom events, with namespaces", 2, function() {
-    var count = 0;
-
+  QUnit.test('custom events', function(assert) {
+    assert.expect(2);
     var View = Backbone.View.extend({
       el: $('body'),
-      events: function() {
-        return {"fake$event.namespaced": "run"};
-      },
-      run: function() {
-        count++;
+      events: {
+        fake$event: function() { assert.ok(true); }
       }
     });
 
-    var view = new View;
+    var myView = new View;
     $('body').trigger('fake$event').trigger('fake$event');
-    equal(count, 2);
 
-    $('body').unbind('.namespaced');
+    $('body').off('fake$event');
     $('body').trigger('fake$event');
-    equal(count, 2);
   });
 
-  test("#1048 - setElement uses provided object.", 2, function() {
+  QUnit.test('#1048 - setElement uses provided object.', function(assert) {
+    assert.expect(2);
     var $el = $('body');
 
-    var view = new Backbone.View({el: $el});
-    ok(view.$el === $el);
+    var myView = new Backbone.View({el: $el});
+    assert.ok(myView.$el === $el);
 
-    view.setElement($el = $($el));
-    ok(view.$el === $el);
+    myView.setElement($el = $($el));
+    assert.ok(myView.$el === $el);
   });
 
-  test("#986 - Undelegate before changing element.", 1, function() {
+  QUnit.test('#986 - Undelegate before changing element.', function(assert) {
+    assert.expect(1);
     var button1 = $('<button></button>');
     var button2 = $('<button></button>');
 
     var View = Backbone.View.extend({
       events: {
         click: function(e) {
-          ok(view.el === e.target);
+          assert.ok(myView.el === e.target);
         }
       }
     });
 
-    var view = new View({el: button1});
-    view.setElement(button2);
+    var myView = new View({el: button1});
+    myView.setElement(button2);
 
     button1.trigger('click');
     button2.trigger('click');
   });
 
-  test("#1172 - Clone attributes object", 2, function() {
+  QUnit.test('#1172 - Clone attributes object', function(assert) {
+    assert.expect(2);
     var View = Backbone.View.extend({
       attributes: {foo: 'bar'}
     });
 
     var view1 = new View({id: 'foo'});
-    strictEqual(view1.el.id, 'foo');
+    assert.strictEqual(view1.el.id, 'foo');
 
     var view2 = new View();
-    ok(!view2.el.id);
+    assert.ok(!view2.el.id);
   });
 
-  test("#1228 - tagName can be provided as a function", 1, function() {
-    var View = Backbone.View.extend({
-      tagName: function() {
-        return 'p';
-      }
-    });
-
-    ok(new View().$el.is('p'));
-  });
-
-  test("views stopListening", 0, function() {
+  QUnit.test('views stopListening', function(assert) {
+    assert.expect(0);
     var View = Backbone.View.extend({
       initialize: function() {
-        this.listenTo(this.model, 'all x', function(){ ok(false); }, this);
-        this.listenTo(this.collection, 'all x', function(){ ok(false); }, this);
+        this.listenTo(this.model, 'all x', function() { assert.ok(false); });
+        this.listenTo(this.collection, 'all x', function() { assert.ok(false); });
       }
     });
 
-    var view = new View({
+    var myView = new View({
       model: new Backbone.Model,
       collection: new Backbone.Collection
     });
 
-    view.stopListening();
-    view.model.trigger('x');
-    view.collection.trigger('x');
+    myView.stopListening();
+    myView.model.trigger('x');
+    myView.collection.trigger('x');
   });
 
-  test("Provide function for el.", 1, function() {
+  QUnit.test('Provide function for el.', function(assert) {
+    assert.expect(2);
     var View = Backbone.View.extend({
       el: function() {
-        return "<p><a></a></p>";
+        return '<p><a></a></p>';
       }
     });
 
-    var view = new View;
-    ok(view.$el.is('p:has(a)'));
+    var myView = new View;
+    assert.ok(myView.$el.is('p'));
+    assert.ok(myView.$el.has('a'));
   });
 
-  test("events passed in options", 2, function() {
+  QUnit.test('events passed in options', function(assert) {
+    assert.expect(1);
     var counter = 0;
 
     var View = Backbone.View.extend({
-      el: '<p><a id="test"></a></p>',
+      el: '#testElement',
       increment: function() {
         counter++;
       }
     });
 
-    var view = new View({events:{'click #test':'increment'}});
-    var view2 = new View({events:function(){
-      return {'click #test':'increment'};
-    }});
+    var myView = new View({
+      events: {
+        'click h1': 'increment'
+      }
+    });
 
-    view.$('#test').trigger('click');
-    view2.$('#test').trigger('click');
-    equal(counter, 2);
-
-    view.$('#test').trigger('click');
-    view2.$('#test').trigger('click');
-    equal(counter, 4);
+    myView.$('h1').trigger('click').trigger('click');
+    assert.equal(counter, 2);
   });
 
-});
+  QUnit.test('remove', function(assert) {
+    assert.expect(2);
+    var myView = new Backbone.View;
+    document.body.appendChild(view.el);
+
+    myView.delegate('click', function() { assert.ok(false); });
+    myView.listenTo(myView, 'all x', function() { assert.ok(false); });
+
+    assert.equal(myView.remove(), myView, '#remove returns the view instance');
+    myView.$el.trigger('click');
+    myView.trigger('x');
+
+    // In IE8 and below, parentNode still exists but is not document.body.
+    assert.notEqual(myView.el.parentNode, document.body);
+  });
+
+  QUnit.test('setElement', function(assert) {
+    assert.expect(3);
+    var myView = new Backbone.View({
+      events: {
+        click: function() { assert.ok(false); }
+      }
+    });
+    myView.events = {
+      click: function() { assert.ok(true); }
+    };
+    var oldEl = myView.el;
+    var $oldEl = myView.$el;
+
+    myView.setElement(document.createElement('div'));
+
+    $oldEl.click();
+    myView.$el.click();
+
+    assert.notEqual(oldEl, myView.el);
+    assert.notEqual($oldEl, myView.$el);
+  });
+
+})(QUnit);

vendor/benchmark.js/LICENSE.txt

@@ -1,22 +0,0 @@
-Copyright 2010-2013 Mathias Bynens <http://mathiasbynens.be/>
-Based on JSLitmus.js, copyright Robert Kieffer <http://broofa.com/>
-Modified by John-David Dalton <http://allyoucanleet.com/>
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.