Bump to v3.4.0.

Rebuild lodash and docs.
Tweak _.isEmpty and _.size docs. [ci skip]
2026-01-30 06:57:49 +00:00 · 2015-03-06 00:55:11 -08:00 · 2015-03-05 23:01:16 -08:00 · 2015-03-05 22:59:18 -08:00 · 2015-03-05 22:50:16 -08:00 · 2015-03-05 08:27:51 -08:00
24 changed files with 3544 additions and 1867 deletions
--- a/.travis.yml
+++ b/.travis.yml
@@ -48,7 +48,7 @@ before_install:
  - "nvm use $TRAVIS_NODE_VERSION"
  - "npm config set loglevel error"
  - "npm i -g npm@\"$NPM_VERSION\""
-  - "[ $SAUCE_LABS == false ] || npm i chalk@\"0.5.1\" ecstatic@\"0.6.0\" request@\"^2.0.0\" sauce-tunnel@\"2.2.2\""
+  - "[ $SAUCE_LABS == false ] || npm i chalk@\"^1.0.0\" ecstatic@\"0.6.0\" request@\"^2.0.0\" sauce-tunnel@\"2.2.2\""
  - "[ $ISTANBUL == false ]   || (npm i -g coveralls@\"^2.0.0\" && npm i istanbul@\"0.3.6\")"
  - "[ $BIN != 'rhino' ] || (sudo mkdir /opt/rhino-1.7R5 && sudo wget --no-check-certificate -O $_/js.jar https://lodash.com/_travis/rhino-1.7R5.jar)"
  - "[ $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)"
@@ -62,7 +62,7 @@ script:
  - "[ $ISTANBUL == false ]   || [ $TRAVIS_SECURE_ENV_VARS == false ] || (cat ./coverage/lcov.info | coveralls)"
  - "[ $SAUCE_LABS == true ]  || [ $ISTANBUL == true ] || cd ./test"
  - "[ $SAUCE_LABS == true ]  || [ $ISTANBUL == true ] || $BIN $OPTION ./test.js ../lodash.$BUILD.js"
-  - "[ $SAUCE_LABS == true ]  || [ $ISTANBUL == true ] || $BIN $OPTION ./test.js ../lodash.$BUILD.min.js"
+  - "[ $SAUCE_LABS == true ]  || [ $ISTANBUL == true ] || [ $TRAVIS_SECURE_ENV_VARS == false ] || $BIN $OPTION ./test.js ../lodash.$BUILD.min.js"
  - "[ $SAUCE_LABS == false ] || $BIN ./test/saucelabs.js name=\"lodash tests\" runner=\"test/index.html?build=../lodash.$BUILD.js&noglobals=true\" tags=\"$BUILD,development\""
  - "[ $SAUCE_LABS == false ] || $BIN ./test/saucelabs.js name=\"lodash tests\" runner=\"test/index.html?build=../lodash.$BUILD.min.js&noglobals=true\" tags=\"$BUILD,production\""
  - "[ $SAUCE_LABS == false ] || [ $BUILD != 'compat' ] || $BIN ./test/saucelabs.js name=\"lodash tests\" runner=\"test/index.html?build=../lodash.$BUILD.js\" tags=\"$BUILD,development,ie-compat\" compatMode=7"
--- a/LICENSE.txt
+++ b/LICENSE.txt
@@ -1,5 +1,5 @@
 Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
-Based on Underscore.js 1.7.0, copyright 2009-2015 Jeremy Ashkenas,
+Based on Underscore.js, copyright 2009-2015 Jeremy Ashkenas,
 DocumentCloud and Investigative Reporters & Editors <http://underscorejs.org/>

 Permission is hereby granted, free of charge, to any person obtaining
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# lodash v3.3.0
+# lodash v3.4.0

 The [modern build](https://github.com/lodash/lodash/wiki/Build-Differences) of [lodash](https://lodash.com/) with packages for [Bower](http://bower.io/), [Component](http://component.github.io/), & [Volo](http://volojs.org/).

@@ -7,13 +7,17 @@ Generated using [lodash-cli](https://www.npmjs.com/package/lodash-cli):
 $ lodash modern -o ./lodash.js
 ```

+## Community
+
+[![Join the chat at https://gitter.im/lodash/lodash](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/lodash/lodash)
+
 ## Module formats

 lodash is also available in a variety of other builds & module formats.

 * npm packages for [modern](https://www.npmjs.com/package/lodash), [compatibility](https://www.npmjs.com/package/lodash-compat), & [per method](https://www.npmjs.com/browse/keyword/lodash-modularized) builds
- * AMD modules for [modern](https://github.com/lodash/lodash/tree/3.3.0-amd) & [compatibility](https://github.com/lodash/lodash-compat/tree/3.3.0-amd) builds
- * ES modules for the [modern](https://github.com/lodash/lodash/tree/3.3.0-es) build
+ * AMD modules for [modern](https://github.com/lodash/lodash/tree/3.4.0-amd) & [compatibility](https://github.com/lodash/lodash-compat/tree/3.4.0-amd) builds
+ * ES modules for the [modern](https://github.com/lodash/lodash/tree/3.4.0-es) build

 ## Further Reading

--- a/bower.json
+++ b/bower.json
@@ -1,6 +1,6 @@
 {
  "name": "lodash",
-  "version": "3.3.0",
+  "version": "3.4.0",
  "main": "lodash.js",
  "ignore": [
    ".*",
--- a/component.json
+++ b/component.json
@@ -1,7 +1,7 @@
 {
  "name": "lodash",
  "repo": "lodash/lodash",
-  "version": "3.3.0",
+  "version": "3.4.0",
  "description": "The modern build of lodash.",
  "license": "MIT",
  "main": "lodash.js",
--- a/doc/README.md
+++ b/doc/README.md
--- a/lodash.js
+++ b/lodash.js
--- a/lodash.min.js
+++ b/lodash.min.js
@@ -1,88 +1,89 @@
 /**
 * @license
- * lodash 3.3.0 (Custom Build) lodash.com/license | Underscore.js 1.7.0 underscorejs.org/LICENSE
+ * lodash 3.4.0 (Custom Build) lodash.com/license | Underscore.js 1.8.2 underscorejs.org/LICENSE
 * Build: `lodash modern -o ./lodash.js`
 */
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+Ot[J]=Ot[X]=Ot[H]=Ot[Q]=Ot[nt]=Ot[tt]=Ot[rt]=Ot[et]=Ot[ut]=true,Ot[B]=Ot[z]=Ot[G]=Ot[D]=Ot[M]=Ot[q]=Ot[P]=Ot["[object Map]"]=Ot[K]=Ot[V]=Ot[Y]=Ot["[object Set]"]=Ot[Z]=Ot["[object WeakMap]"]=false;var Ct={};Ct[B]=Ct[z]=Ct[G]=Ct[D]=Ct[M]=Ct[J]=Ct[X]=Ct[H]=Ct[Q]=Ct[nt]=Ct[K]=Ct[V]=Ct[Y]=Ct[Z]=Ct[tt]=Ct[rt]=Ct[et]=Ct[ut]=true,Ct[q]=Ct[P]=Ct["[object Map]"]=Ct["[object Set]"]=Ct["[object WeakMap]"]=false;var Tt={leading:false,maxWait:0,trailing:false},Wt={"\xc0":"A","\xc1":"A","\xc2":"A","\xc3":"A","\xc4":"A","\xc5":"A","\xe0":"a","\xe1":"a","\xe2":"a","\xe3":"a","\xe4":"a","\xe5":"a","\xc7":"C","\xe7":"c","\xd0":"D","\xf0":"d","\xc8":"E","\xc9":"E","\xca":"E","\xcb":"E","\xe8":"e","\xe9":"e","\xea":"e","\xeb":"e","\xcc":"I","\xcd":"I","\xce":"I","\xcf":"I","\xec":"i","\xed":"i","\xee":"i","\xef":"i","\xd1":"N","\xf1":"n","\xd2":"O","\xd3":"O","\xd4":"O","\xd5":"O","\xd6":"O","\xd8":"O","\xf2":"o","\xf3":"o","\xf4":"o","\xf5":"o","\xf6":"o","\xf8":"o","\xd9":"U","\xda":"U","\xdb":"U","\xdc":"U","\xf9":"u","\xfa":"u","\xfb":"u","\xfc":"u","\xdd":"Y","\xfd":"y","\xff":"y","\xc6":"Ae","\xe6":"ae","\xde":"Th","\xfe":"th","\xdf":"ss"},St={"&":"&amp;","<":"&lt;",">":"&gt;",'"':"&quot;","'":"&#39;","`":"&#96;"},Nt={"&amp;":"&","&lt;":"<","&gt;":">","&quot;":'"',"&#39;":"'","&#96;":"`"},Ut={"function":true,object:true},Ft={"\\":"\\","'":"'","\n":"n","\r":"r","\u2028":"u2028","\u2029":"u2029"},$t=Ut[typeof exports]&&exports&&!exports.nodeType&&exports,Lt=Ut[typeof module]&&module&&!module.nodeType&&module,Ut=Ut[typeof window]&&window,Bt=Lt&&Lt.exports===$t&&$t,zt=$t&&Lt&&typeof global=="object"&&global||Ut!==(this&&this.window)&&Ut||this,Dt=y();
+typeof define=="function"&&typeof define.amd=="object"&&define.amd?(zt._=Dt, define(function(){return Dt})):$t&&Lt?Bt?(Lt.exports=Dt)._=Dt:$t._=Dt:zt._=Dt}).call(this);
--- a/lodash.src.js
+++ b/lodash.src.js
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
  "name": "lodash",
-  "version": "3.3.0",
+  "version": "3.4.0",
  "main": "lodash.src.js",
  "private": true,
  "devDependencies": {
--- a/perf/perf.js
+++ b/perf/perf.js
@@ -412,7 +412,7 @@
      }\
      if (typeof flatten != "undefined") {\
        var _flattenDeep = _.flatten([[1]])[0] !== 1,\
-            lodashFlattenDeep = lodash.flatten([[1]]) !== 1;\
+            lodashFlattenDeep = lodash.flatten([[1]])[0] !== 1;\
      }\
      if (typeof isEqual != "undefined") {\
        var objectOfPrimitives = {\
--- a/test/saucelabs.js
+++ b/test/saucelabs.js
@@ -105,8 +105,8 @@ var platforms = [
  ['Linux', 'android', '5.0'],
  ['Linux', 'android', '4.4'],
  ['Linux', 'android', '4.0'],
+  ['Windows 8.1', 'firefox', '36'],
  ['Windows 8.1', 'firefox', '35'],
-  ['Windows 8.1', 'firefox', '34'],
  ['Windows 8.1', 'firefox', '20'],
  ['Windows 8.1', 'chrome', '40'],
  ['Windows 8.1', 'chrome', '39'],
--- a/test/test.js
+++ b/test/test.js
--- a/test/underscore.html
+++ b/test/underscore.html
@@ -51,6 +51,7 @@
 						'0'
 					],
 					'flatten': [
+						'Flattens empty arrays',
 						'can flatten nested arrays',
 						'can shallowly flatten nested arrays',
 						'works on an arguments object',
@@ -83,12 +84,9 @@
 					]
 				},
 				'Chaining': {
-					'select/reject/sortBy': [
-						'Died on test #1'
-					],
-					'select/reject/sortBy in functional style': [
-						'Died on test #1'
-					],
+					'pop': true,
+					'shift': true,
+					'splice': true,
 					'reverse/concat/unshift/pop/map': [
 						'can chain together array functions.'
 					]
@@ -97,21 +95,18 @@
 					'filter': [
 						'OO-filter'
 					],
+					'invoke': [
+						'handles null & undefined'
+					],
 					'map': [
 						'OO-style doubled numbers'
 					],
-					'reduce': [
-						'handles a null (without initial value) properly',
-						'throws an error for empty arrays with no initial value'
-					],
-					'reduceRight': [
-						'handles a null (without initial value) properly',
-						'throws an error for empty arrays with no initial value'
+					'Resistant to collection length and properties changing while iterating': [
+						'Died on test #50'
 					]
 				},
 				'Functions': {
 					'bind': [
-						'can bind without specifying a context',
 						'Died on test #2'
 					],
 					'bindAll': [
@@ -127,14 +122,23 @@
 					'debounce asap': true
 				},
 				'Objects': {
-					'isEqual': [
-						'Died on test #60',
-						'Died on test #63'
+					'#1929 Typed Array constructors are functions': true,
+					'allKeys': true,
+					'extendOwn': true,
+					'mapObject': true,
+					'matcher': true,
+					'matcher ': true,
+					'extend': [
+						'extend copies all properties from source'
 					],
 					'isFinite': [
 						'Numeric strings are numbers',
 						'Number instances can be finite'
 					],
+					'isMatch': [
+						'inherited and own properties are checked on the test object',
+						'doesnt falsey match constructor on undefined/null'
+					],
 					'keys': [
 						'is not fooled by sparse arrays; see issue #95',
 						'[]'
@@ -145,33 +149,21 @@
 					]
 				},
 				'Utility': {
-					'now': [
-						'Produces the correct time in milliseconds'
-					],
 					'_.templateSettings.variable': [
 						'"x"'
 					],
 					'times': [
-						'Died on test #1',
 						'works as a wrapper'
-					],
-					'uniqueId': [
-						'Died on test #1'
 					]
 				}
 			};

 			// only excuse in Sauce Labs (buggy Safari and timers)
 			if (!ui.isSauceLabs) {
-				QUnit.config.excused.Utility.times.shift();
-				delete QUnit.config.excused.Chaining['select/reject/sortBy'];
-				delete QUnit.config.excused.Chaining['select/reject/sortBy in functional style'];
 				delete QUnit.config.excused.Functions['throttle repeatedly with results'];
 				delete QUnit.config.excused.Functions['more throttle does not trigger leading call when leading is set to false'];
 				delete QUnit.config.excused.Functions['throttle does not trigger trailing call when trailing is set to false'];
 				delete QUnit.config.excused.Functions['debounce asap'];
-				delete QUnit.config.excused.Objects.isEqual;
-				delete QUnit.config.excused.Utility.uniqueId;
 			}
 			// load test scripts
 			document.write(ui.urlParams.loader != 'none'
--- a/vendor/benchmark.js/benchmark.js
+++ b/vendor/benchmark.js/benchmark.js
--- a/vendor/underscore/LICENSE
+++ b/vendor/underscore/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2009-2014 Jeremy Ashkenas, DocumentCloud and Investigative
+Copyright (c) 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative
 Reporters & Editors

 Permission is hereby granted, free of charge, to any person
--- a/vendor/underscore/test/arrays.js
+++ b/vendor/underscore/test/arrays.js
@@ -1,6 +1,7 @@
 (function() {
+  var _ = typeof require == 'function' ? require('..') : window._;

-  module('Arrays');
+  QUnit.module('Arrays');

  test('first', function() {
    equal(_.first([1, 2, 3]), 1, 'can pull out the first element of an array');
@@ -79,6 +80,12 @@
  });

  test('flatten', function() {
+    deepEqual(_.flatten(null), [], 'Flattens supports null');
+    deepEqual(_.flatten(void 0), [], 'Flattens supports undefined');
+
+    deepEqual(_.flatten([[], [[]], []]), [], 'Flattens empty arrays');
+    deepEqual(_.flatten([[], [[]], []], true), [[]], 'Flattens empty arrays');
+
    var list = [1, [2], [3, [[[4]]]]];
    deepEqual(_.flatten(list), [1, 2, 3, 4], 'can flatten nested arrays');
    deepEqual(_.flatten(list, true), [1, 2, 3, [[[4]]]], 'can shallowly flatten nested arrays');
@@ -86,6 +93,11 @@
    deepEqual(result, [1, 2, 3, 4], 'works on an arguments object');
    list = [[1], [2], [3], [[4]]];
    deepEqual(_.flatten(list, true), [1, 2, 3, [4]], 'can shallowly flatten arrays containing only other arrays');
+
+    equal(_.flatten([_.range(10), _.range(10), 5, 1, 3], true).length, 23);
+    equal(_.flatten([_.range(10), _.range(10), 5, 1, 3]).length, 23);
+    equal(_.flatten([new Array(1000000), _.range(56000), 5, 1, 3]).length, 1056003, 'Flatten can handle massive collections');
+    equal(_.flatten([new Array(1000000), _.range(56000), 5, 1, 3], true).length, 1056003, 'Flatten can handle massive collections');
  });

  test('without', function() {
@@ -99,6 +111,32 @@
    equal(_.without(list, list[0]).length, 1, 'ditto.');
  });

+  test('sortedIndex', function() {
+    var numbers = [10, 20, 30, 40, 50], num = 35;
+    var indexForNum = _.sortedIndex(numbers, num);
+    equal(indexForNum, 3, '35 should be inserted at index 3');
+
+    var indexFor30 = _.sortedIndex(numbers, 30);
+    equal(indexFor30, 2, '30 should be inserted at index 2');
+
+    var objects = [{x: 10}, {x: 20}, {x: 30}, {x: 40}];
+    var iterator = function(obj){ return obj.x; };
+    strictEqual(_.sortedIndex(objects, {x: 25}, iterator), 2);
+    strictEqual(_.sortedIndex(objects, {x: 35}, 'x'), 3);
+
+    var context = {1: 2, 2: 3, 3: 4};
+    iterator = function(obj){ return this[obj]; };
+    strictEqual(_.sortedIndex([1, 3], 2, iterator, context), 1);
+
+    var values = [0, 1, 3, 7, 15, 31, 63, 127, 255, 511, 1023, 2047, 4095, 8191, 16383, 32767, 65535, 131071, 262143, 524287, 1048575, 2097151, 4194303, 8388607, 16777215, 33554431, 67108863, 134217727, 268435455, 536870911, 1073741823, 2147483647];
+    var array = Array(Math.pow(2, 32) - 1);
+    var length = values.length;
+    while (length--) {
+      array[values[length]] = values[length];
+    }
+    equal(_.sortedIndex(array, 2147483648), 2147483648, 'should work with large indexes');
+  });
+
  test('uniq', function() {
    var list = [1, 2, 1, 3, 1, 4];
    deepEqual(_.uniq(list), [1, 2, 3, 4], 'can find the unique values of an unsorted array');
@@ -116,6 +154,20 @@
    list = [1, 2, 2, 3, 4, 4];
    deepEqual(_.uniq(list, true, iterator), [1, 2, 3, 4], 'iterator works with sorted array');

+    var kittens = [
+      {kitten: 'Celery', cuteness: 8},
+      {kitten: 'Juniper', cuteness: 10},
+      {kitten: 'Spottis', cuteness: 10}
+    ];
+
+    var expected = [
+      {kitten: 'Celery', cuteness: 8},
+      {kitten: 'Juniper', cuteness: 10}
+    ];
+
+    deepEqual(_.uniq(kittens, true, 'cuteness'), expected, 'string iterator works with sorted array');
+
+
    var result = (function(){ return _.uniq(arguments); }(1, 2, 1, 3, 1, 4));
    deepEqual(result, [1, 2, 3, 4], 'works on an arguments object');

@@ -209,6 +261,19 @@
    deepEqual(_.zip(), [], '_.zip() returns []');
  });

+  test('unzip', function() {
+    deepEqual(_.unzip(null), [], 'handles null');
+
+    deepEqual(_.unzip([['a', 'b'], [1, 2]]), [['a', 1], ['b', 2]]);
+
+    // complements zip
+    var zipped = _.zip(['fred', 'barney'], [30, 40], [true, false]);
+    deepEqual(_.unzip(zipped), [['fred', 'barney'], [30, 40], [true, false]]);
+
+    zipped = _.zip(['moe', 30], ['larry', 40], ['curly', 50, 'extra data']);
+    deepEqual(_.unzip(zipped), [['moe', 30, void 0], ['larry', 40, void 0], ['curly', 50, 'extra data']], 'Uses length of largest array');
+  });
+
  test('object', function() {
    var result = _.object(['moe', 'larry', 'curly'], [30, 40, 50]);
    var shouldBe = {moe: 30, larry: 40, curly: 50};
@@ -229,7 +294,14 @@
    equal(_.indexOf(numbers, 2), 1, 'can compute indexOf');
    var result = (function(){ return _.indexOf(arguments, 2); }(1, 2, 3));
    equal(result, 1, 'works on an arguments object');
-    equal(_.indexOf(null, 2), -1, 'handles nulls properly');
+
+    _.each([null, void 0, [], false], function(val) {
+      var msg = 'Handles: ' + (_.isArray(val) ? '[]' : val);
+      equal(_.indexOf(val, 2), -1, msg);
+      equal(_.indexOf(val, 2, -1), -1, msg);
+      equal(_.indexOf(val, 2, -20), -1, msg);
+      equal(_.indexOf(val, 2, 15), -1, msg);
+    });

    var num = 35;
    numbers = [10, 20, 30, 40, 50];
@@ -263,6 +335,25 @@
      strictEqual(_.indexOf(array, 1, fromIndex), 0);
    });
    strictEqual(_.indexOf([1, 2, 3], 1, true), 0);
+
+    index = _.indexOf([], undefined, true);
+    equal(index, -1, 'empty array with truthy `isSorted` returns -1');
+  });
+
+  test('indexOf with NaN', function() {
+    strictEqual(_.indexOf([1, 2, NaN, NaN], NaN), 2, 'Expected [1, 2, NaN] to contain NaN');
+    strictEqual(_.indexOf([1, 2, Infinity], NaN), -1, 'Expected [1, 2, NaN] to contain NaN');
+
+    (function() {
+      strictEqual(_.indexOf(arguments, NaN), 2, 'Expected arguments [1, 2, NaN] to contain NaN');
+    }(1, 2, NaN, NaN));
+  });
+
+  test('indexOf with +- 0', function() {
+    _.each([-0, +0], function(val) {
+      strictEqual(_.indexOf([1, 2, val, val], val), 2);
+      strictEqual(_.indexOf([1, 2, val, val], -val), 2);
+    });
  });

  test('lastIndexOf', function() {
@@ -276,7 +367,14 @@
    equal(_.lastIndexOf(numbers, 0), 8, 'lastIndexOf the other element');
    var result = (function(){ return _.lastIndexOf(arguments, 1); }(1, 0, 1, 0, 0, 1, 0, 0, 0));
    equal(result, 5, 'works on an arguments object');
-    equal(_.lastIndexOf(null, 2), -1, 'handles nulls properly');
+
+    _.each([null, void 0, [], false], function(val) {
+      var msg = 'Handles: ' + (_.isArray(val) ? '[]' : val);
+      equal(_.lastIndexOf(val, 2), -1, msg);
+      equal(_.lastIndexOf(val, 2, -1), -1, msg);
+      equal(_.lastIndexOf(val, 2, -20), -1, msg);
+      equal(_.lastIndexOf(val, 2, 15), -1, msg);
+    });

    numbers = [1, 2, 3, 1, 2, 3, 1, 2, 3];
    var index = _.lastIndexOf(numbers, 2, 2);
@@ -316,6 +414,109 @@
    }), [0, -1, -1]);
  });

+  test('lastIndexOf with NaN', function() {
+    strictEqual(_.lastIndexOf([1, 2, NaN, NaN], NaN), 3, 'Expected [1, 2, NaN] to contain NaN');
+    strictEqual(_.lastIndexOf([1, 2, Infinity], NaN), -1, 'Expected [1, 2, NaN] to contain NaN');
+
+    (function() {
+      strictEqual(_.lastIndexOf(arguments, NaN), 3, 'Expected arguments [1, 2, NaN] to contain NaN');
+    }(1, 2, NaN, NaN));
+  });
+
+  test('lastIndexOf with +- 0', function() {
+    _.each([-0, +0], function(val) {
+      strictEqual(_.lastIndexOf([1, 2, val, val], val), 3);
+      strictEqual(_.lastIndexOf([1, 2, val, val], -val), 3);
+      strictEqual(_.lastIndexOf([-1, 1, 2], -val), -1);
+    });
+  });
+
+  test('findIndex', function() {
+    var objects = [
+      {'a': 0, 'b': 0},
+      {'a': 1, 'b': 1},
+      {'a': 2, 'b': 2},
+      {'a': 0, 'b': 0}
+    ];
+
+    equal(_.findIndex(objects, function(obj) {
+      return obj.a === 0;
+    }), 0);
+
+    equal(_.findIndex(objects, function(obj) {
+      return obj.b * obj.a === 4;
+    }), 2);
+
+    equal(_.findIndex(objects, 'a'), 1, 'Uses lookupIterator');
+
+    equal(_.findIndex(objects, function(obj) {
+      return obj.b * obj.a === 5;
+    }), -1);
+
+    equal(_.findIndex(null, _.noop), -1);
+    strictEqual(_.findIndex(objects, function(a) {
+      return a.foo === null;
+    }), -1);
+    _.findIndex([{a: 1}], function(a, key, obj) {
+      equal(key, 0);
+      deepEqual(obj, [{a: 1}]);
+      strictEqual(this, objects, 'called with context');
+    }, objects);
+
+    var sparse = [];
+    sparse[20] = {'a': 2, 'b': 2};
+    equal(_.findIndex(sparse, function(obj) {
+      return obj && obj.b * obj.a === 4;
+    }), 20, 'Works with sparse arrays');
+
+    var array = [1, 2, 3, 4];
+    array.match = 55;
+    strictEqual(_.findIndex(array, function(x) { return x === 55; }), -1, 'doesn\'t match array-likes keys');
+  });
+
+  test('findLastIndex', function() {
+    var objects = [
+      {'a': 0, 'b': 0},
+      {'a': 1, 'b': 1},
+      {'a': 2, 'b': 2},
+      {'a': 0, 'b': 0}
+    ];
+
+    equal(_.findLastIndex(objects, function(obj) {
+      return obj.a === 0;
+    }), 3);
+
+    equal(_.findLastIndex(objects, function(obj) {
+      return obj.b * obj.a === 4;
+    }), 2);
+
+    equal(_.findLastIndex(objects, 'a'), 2, 'Uses lookupIterator');
+
+    equal(_.findLastIndex(objects, function(obj) {
+      return obj.b * obj.a === 5;
+    }), -1);
+
+    equal(_.findLastIndex(null, _.noop), -1);
+    strictEqual(_.findLastIndex(objects, function(a) {
+      return a.foo === null;
+    }), -1);
+    _.findLastIndex([{a: 1}], function(a, key, obj) {
+      equal(key, 0);
+      deepEqual(obj, [{a: 1}]);
+      strictEqual(this, objects, 'called with context');
+    }, objects);
+
+    var sparse = [];
+    sparse[20] = {'a': 2, 'b': 2};
+    equal(_.findLastIndex(sparse, function(obj) {
+      return obj && obj.b * obj.a === 4;
+    }), 20, 'Works with sparse arrays');
+
+    var array = [1, 2, 3, 4];
+    array.match = 55;
+    strictEqual(_.findLastIndex(array, function(x) { return x === 55; }), -1, 'doesn\'t match array-likes keys');
+  });
+
  test('range', function() {
    deepEqual(_.range(0), [], 'range with 0 as a first argument generates an empty array');
    deepEqual(_.range(4), [0, 1, 2, 3], 'range with a single positive argument generates an array of elements 0,1,2,...,n-1');
--- a/vendor/underscore/test/chaining.js
+++ b/vendor/underscore/test/chaining.js
@@ -1,6 +1,7 @@
 (function() {
+  var _ = typeof require == 'function' ? require('..') : window._;

-  module('Chaining');
+  QUnit.module('Chaining');

  test('map/flatten/reduce', function() {
    var lyrics = [
@@ -57,10 +58,41 @@
    deepEqual(numbers, [34, 10, 8, 6, 4, 2, 10, 10], 'can chain together array functions.');
  });

+  test('splice', function() {
+    var instance = _([1, 2, 3, 4, 5]).chain();
+    deepEqual(instance.splice(1, 3).value(), [1, 5]);
+    deepEqual(instance.splice(1, 0).value(), [1, 5]);
+    deepEqual(instance.splice(1, 1).value(), [1]);
+    deepEqual(instance.splice(0, 1).value(), [], '#397 Can create empty array');
+  });
+
+  test('shift', function() {
+    var instance = _([1, 2, 3]).chain();
+    deepEqual(instance.shift().value(), [2, 3]);
+    deepEqual(instance.shift().value(), [3]);
+    deepEqual(instance.shift().value(), [], '#397 Can create empty array');
+  });
+
+  test('pop', function() {
+    var instance = _([1, 2, 3]).chain();
+    deepEqual(instance.pop().value(), [1, 2]);
+    deepEqual(instance.pop().value(), [1]);
+    deepEqual(instance.pop().value(), [], '#397 Can create empty array');
+  });
+
  test('chaining works in small stages', function() {
    var o = _([1, 2, 3, 4]).chain();
    deepEqual(o.filter(function(i) { return i < 3; }).value(), [1, 2]);
    deepEqual(o.filter(function(i) { return i > 2; }).value(), [3, 4]);
  });

+  test('#1562: Engine proxies for chained functions', function() {
+    var wrapped = _(512);
+    strictEqual(wrapped.toJSON(), 512);
+    strictEqual(wrapped.valueOf(), 512);
+    strictEqual(+wrapped, 512);
+    strictEqual(wrapped.toString(), '512');
+    strictEqual('' + wrapped, '512');
+  });
+
 }());
--- a/vendor/underscore/test/collections.js
+++ b/vendor/underscore/test/collections.js
@@ -1,6 +1,7 @@
 (function() {
+  var _ = typeof require == 'function' ? require('..') : window._;

-  module('Collections');
+  QUnit.module('Collections');

  test('each', function() {
    _.each([1, 2, 3], function(num, i) {
@@ -35,12 +36,6 @@
    var a = [1, 2, 3];
    strictEqual(_.each(a, function(){}), a);
    strictEqual(_.each(null, function(){}), null);
-
-    var b = [1, 2, 3];
-    b.length = 100;
-    answers = 0;
-    _.each(b, function(){ ++answers; });
-    equal(answers, 100, 'enumerates [0, length)');
  });

  test('forEach', function() {
@@ -55,6 +50,94 @@
    });
  });

+  test('Iterating objects with sketchy length properties', function() {
+    var functions = [
+        'each', 'map', 'filter', 'find',
+        'some', 'every', 'max', 'min',
+        'groupBy', 'countBy', 'partition', 'indexBy'
+    ];
+    var reducers = ['reduce', 'reduceRight'];
+
+    var tricks = [
+      {length: '5'},
+      {
+        length: {
+          valueOf: _.constant(5)
+        }
+      },
+      {length: Math.pow(2, 53) + 1},
+      {length: Math.pow(2, 53)},
+      {length: null},
+      {length: -2},
+      {length: new Number(15)}
+    ];
+
+    expect(tricks.length * (functions.length + reducers.length + 4));
+
+    _.each(tricks, function(trick) {
+      var length = trick.length;
+      strictEqual(_.size(trick), 1, 'size on obj with length: ' + length);
+      deepEqual(_.toArray(trick), [length], 'toArray on obj with length: ' + length);
+      deepEqual(_.shuffle(trick), [length], 'shuffle on obj with length: ' + length);
+      deepEqual(_.sample(trick), length, 'sample on obj with length: ' + length);
+
+
+      _.each(functions, function(method) {
+        _[method](trick, function(val, key) {
+          strictEqual(key, 'length', method + ': ran with length = ' + val);
+        });
+      });
+
+      _.each(reducers, function(method) {
+        strictEqual(_[method](trick), trick.length, method);
+      });
+    });
+  });
+
+  test('Resistant to collection length and properties changing while iterating', function() {
+
+    var collection = [
+      'each', 'map', 'filter', 'find',
+      'some', 'every', 'max', 'min', 'reject',
+      'groupBy', 'countBy', 'partition', 'indexBy',
+      'reduce', 'reduceRight'
+    ];
+    var array = [
+      'findIndex', 'findLastIndex'
+    ];
+    var object = [
+      'mapObject', 'findKey', 'pick', 'omit'
+    ];
+
+    _.each(collection.concat(array), function(method) {
+      var sparseArray = [1, 2, 3];
+      sparseArray.length = 100;
+      var answers = 0;
+      _[method](sparseArray, function(){
+        ++answers;
+        return method === 'every' ? true : null;
+      }, {});
+      equal(answers, 100, method + ' enumerates [0, length)');
+
+      var growingCollection = [1, 2, 3], count = 0;
+      _[method](growingCollection, function() {
+        if (count < 10) growingCollection.push(count++);
+        return method === 'every' ? true : null;
+      }, {});
+      equal(count, 3, method + ' is resistant to length changes');
+    });
+
+    _.each(collection.concat(object), function(method) {
+      var changingObject = {0: 0, 1: 1}, count = 0;
+      _[method](changingObject, function(val) {
+        if (count < 10) changingObject[++count] = val + 1;
+        return method === 'every' ? true : null;
+      }, {});
+
+      equal(count, 2, method + ' is resistant to property changes');
+    });
+  });
+
  test('map', function() {
    var doubled = _.map([1, 2, 3], function(num){ return num * 2; });
    deepEqual(doubled, [2, 4, 6], 'doubled numbers');
@@ -65,12 +148,7 @@
    doubled = _([1, 2, 3]).map(function(num){ return num * 2; });
    deepEqual(doubled, [2, 4, 6], 'OO-style doubled numbers');

-    if (document.querySelectorAll) {
-      var ids = _.map(document.querySelectorAll('#map-test *'), function(n){ return n.id; });
-      deepEqual(ids, ['id1', 'id2'], 'Can use collection methods on NodeLists.');
-    }
-
-    ids = _.map({length: 2, 0: {id: '1'}, 1: {id: '2'}}, function(n){
+    var ids = _.map({length: 2, 0: {id: '1'}, 1: {id: '2'}}, function(n){
      return n.id;
    });
    deepEqual(ids, ['1', '2'], 'Can use collection methods on Array-likes.');
@@ -113,9 +191,7 @@
    ok(_.reduce(null, _.noop, 138) === 138, 'handles a null (with initial value) properly');
    equal(_.reduce([], _.noop, undefined), undefined, 'undefined can be passed as a special case');
    equal(_.reduce([_], _.noop), _, 'collection of length one with no initial value returns the first item');
-
-    raises(function() { _.reduce([], _.noop); }, TypeError, 'throws an error for empty arrays with no initial value');
-    raises(function() {_.reduce(null, _.noop);}, TypeError, 'handles a null (without initial value) properly');
+    equal(_.reduce([], _.noop), undefined, 'returns undefined when collection is empty and no initial value');
  });

  test('foldl', function() {
@@ -136,9 +212,7 @@
    equal(_.reduceRight([_], _.noop), _, 'collection of length one with no initial value returns the first item');

    equal(_.reduceRight([], _.noop, undefined), undefined, 'undefined can be passed as a special case');
-
-    raises(function() { _.reduceRight([], _.noop); }, TypeError, 'throws an error for empty arrays with no initial value');
-    raises(function() {_.reduceRight(null, _.noop);}, TypeError, 'handles a null (without initial value) properly');
+    equal(_.reduceRight([], _.noop), undefined, 'returns undefined when collection is empty and no initial value');

    // Assert that the correct arguments are being passed.

@@ -183,6 +257,9 @@
    strictEqual(_.find(array, function(n) { return n > 2; }), 3, 'should return first found `value`');
    strictEqual(_.find(array, function() { return false; }), void 0, 'should return `undefined` if `value` is not found');

+    array.dontmatch = 55;
+    strictEqual(_.find(array, function(x) { return x === 55; }), void 0, 'iterates array-likes correctly');
+
    // Matching an object like _.findWhere.
    var list = [{a: 1, b: 2}, {a: 2, b: 2}, {a: 1, b: 3}, {a: 1, b: 4}, {a: 2, b: 4}];
    deepEqual(_.find(list, {a: 1}), {a: 1, b: 2}, 'can be used as findWhere');
@@ -192,6 +269,25 @@

    var result = _.find([1, 2, 3], function(num){ return num * 2 === 4; });
    equal(result, 2, 'found the first "2" and broke the loop');
+
+    var obj = {
+      a: {x: 1, z: 3},
+      b: {x: 2, z: 2},
+      c: {x: 3, z: 4},
+      d: {x: 4, z: 1}
+    };
+
+    deepEqual(_.find(obj, {x: 2}), {x: 2, z: 2}, 'works on objects');
+    deepEqual(_.find(obj, {x: 2, z: 1}), void 0);
+    deepEqual(_.find(obj, function(x) {
+      return x.x === 4;
+    }), {x: 4, z: 1});
+
+    _.findIndex([{a: 1}], function(a, key, obj) {
+      equal(key, 0);
+      deepEqual(obj, [{a: 1}]);
+      strictEqual(this, _, 'called with context');
+    }, _);
  });

  test('detect', function() {
@@ -303,22 +399,66 @@
    strictEqual(_.any, _.some, 'alias for any');
  });

-  test('contains', function() {
-    ok(_.contains([1, 2, 3], 2), 'two is in the array');
-    ok(!_.contains([1, 3, 9], 2), 'two is not in the array');
-    ok(_.contains({moe: 1, larry: 3, curly: 9}, 3) === true, '_.contains on objects checks their values');
-    ok(_([1, 2, 3]).contains(2), 'OO-style contains');
+  test('includes', function() {
+    _.each([null, void 0, 0, 1, NaN, {}, []], function(val) {
+      strictEqual(_.includes(val, 'hasOwnProperty'), false);
+    });
+    strictEqual(_.includes([1, 2, 3], 2), true, 'two is in the array');
+    ok(!_.includes([1, 3, 9], 2), 'two is not in the array');
+
+    strictEqual(_.includes([5, 4, 3, 2, 1], 5, true), true, 'doesn\'t delegate to binary search');
+
+    ok(_.includes({moe: 1, larry: 3, curly: 9}, 3) === true, '_.includes on objects checks their values');
+    ok(_([1, 2, 3]).includes(2), 'OO-style includes');
  });

  test('include', function() {
-    strictEqual(_.contains, _.include, 'alias for contains');
+    strictEqual(_.includes, _.include, 'alias for includes');
  });

-  test('invoke', function() {
+  test('contains', function() {
+    strictEqual(_.includes, _.contains, 'alias for includes');
+
+    var numbers = [1, 2, 3, 1, 2, 3, 1, 2, 3];
+    strictEqual(_.includes(numbers, 1, 1), true);
+    strictEqual(_.includes(numbers, 1, -1), false);
+    strictEqual(_.includes(numbers, 1, -2), false);
+    strictEqual(_.includes(numbers, 1, -3), true);
+    strictEqual(_.includes(numbers, 1, 6), true);
+    strictEqual(_.includes(numbers, 1, 7), false);
+  });
+
+  test('includes with NaN', function() {
+    strictEqual(_.includes([1, 2, NaN, NaN], NaN), true, 'Expected [1, 2, NaN] to contain NaN');
+    strictEqual(_.includes([1, 2, Infinity], NaN), false, 'Expected [1, 2, NaN] to contain NaN');
+  });
+
+  test('includes with +- 0', function() {
+    _.each([-0, +0], function(val) {
+      strictEqual(_.includes([1, 2, val, val], val), true);
+      strictEqual(_.includes([1, 2, val, val], -val), true);
+      strictEqual(_.includes([-1, 1, 2], -val), false);
+    });
+  });
+
+
+  test('invoke', 5, function() {
    var list = [[5, 1, 7], [3, 2, 1]];
    var result = _.invoke(list, 'sort');
    deepEqual(result[0], [1, 5, 7], 'first array sorted');
    deepEqual(result[1], [1, 2, 3], 'second array sorted');
+
+    _.invoke([{
+      method: function() {
+        deepEqual(_.toArray(arguments), [1, 2, 3], 'called with arguments');
+      }
+    }], 'method', 1, 2, 3);
+
+    deepEqual(_.invoke([{a: null}, {}, {a: _.constant(1)}], 'a'), [null, void 0, 1], 'handles null & undefined');
+
+    throws(function() {
+      _.invoke([{a: 1}], 'a');
+    }, TypeError, 'throws for non-functions');
  });

  test('invoke w/ function reference', function() {
@@ -326,6 +466,10 @@
    var result = _.invoke(list, Array.prototype.sort);
    deepEqual(result[0], [1, 5, 7], 'first array sorted');
    deepEqual(result[1], [1, 2, 3], 'second array sorted');
+
+    deepEqual(_.invoke([1, 2, 3], function(a) {
+      return a + this;
+    }, 5), [6, 7, 8], 'receives params from invoke');
  });

  // Relevant when using ClojureScript
@@ -346,6 +490,7 @@
  test('pluck', function() {
    var people = [{name: 'moe', age: 30}, {name: 'curly', age: 50}];
    deepEqual(_.pluck(people, 'name'), ['moe', 'curly'], 'pulls names out of objects');
+    deepEqual(_.pluck(people, 'address'), [undefined, undefined], 'missing properties are returned as undefined');
    //compat: most flexible handling of edge cases
    deepEqual(_.pluck([{'[object Object]': 1}], {}), [1]);
  });
@@ -582,24 +727,6 @@
    equal(grouped['3'], 1);
  });

-  test('sortedIndex', function() {
-    var numbers = [10, 20, 30, 40, 50], num = 35;
-    var indexForNum = _.sortedIndex(numbers, num);
-    equal(indexForNum, 3, '35 should be inserted at index 3');
-
-    var indexFor30 = _.sortedIndex(numbers, 30);
-    equal(indexFor30, 2, '30 should be inserted at index 2');
-
-    var objects = [{x: 10}, {x: 20}, {x: 30}, {x: 40}];
-    var iterator = function(obj){ return obj.x; };
-    strictEqual(_.sortedIndex(objects, {x: 25}, iterator), 2);
-    strictEqual(_.sortedIndex(objects, {x: 35}, 'x'), 3);
-
-    var context = {1: 2, 2: 3, 3: 4};
-    iterator = function(obj){ return this[obj]; };
-    strictEqual(_.sortedIndex([1, 3], 2, iterator, context), 1);
-  });
-
  test('shuffle', function() {
    var numbers = _.range(10);
    var shuffled = _.shuffle(numbers);
@@ -637,12 +764,14 @@
    var numbers = _.toArray({one : 1, two : 2, three : 3});
    deepEqual(numbers, [1, 2, 3], 'object flattened into array');

-    // test in IE < 9
-    try {
-      var actual = _.toArray(document.childNodes);
-    } catch(ex) { }
-
-    ok(_.isArray(actual), 'should not throw converting a node list');
+    if (typeof document != 'undefined') {
+      // test in IE < 9
+      var actual;
+      try {
+        actual = _.toArray(document.childNodes);
+      } catch(ex) { }
+      deepEqual(actual, _.map(document.childNodes, _.identity), 'works on NodeList');
+    }
  });

  test('size', function() {
@@ -693,4 +822,26 @@
    }, predicate);
  });

+  if (typeof document != 'undefined') {
+    test('Can use various collection methods on NodeLists', function() {
+        var parent = document.createElement('div');
+        parent.innerHTML = '<span id=id1></span>textnode<span id=id2></span>';
+
+        var elementChildren = _.filter(parent.childNodes, _.isElement);
+        equal(elementChildren.length, 2);
+
+        deepEqual(_.map(elementChildren, 'id'), ['id1', 'id2']);
+        deepEqual(_.map(parent.childNodes, 'nodeType'), [1, 3, 1]);
+
+        ok(!_.every(parent.childNodes, _.isElement));
+        ok(_.some(parent.childNodes, _.isElement));
+
+        function compareNode(node) {
+          return _.isElement(node) ? node.id.charAt(2) : void 0;
+        }
+        equal(_.max(parent.childNodes, compareNode), _.last(parent.childNodes));
+        equal(_.min(parent.childNodes, compareNode), _.first(parent.childNodes));
+    });
+  }
+
 }());
--- a/vendor/underscore/test/functions.js
+++ b/vendor/underscore/test/functions.js
@@ -1,6 +1,8 @@
 (function() {
+  var _ = typeof require == 'function' ? require('..') : window._;

-  module('Functions');
+  QUnit.module('Functions');
+  QUnit.config.asyncRetries = 3;

  test('bind', function() {
    var context = {name : 'moe'};
@@ -12,7 +14,9 @@
    equal(bound(), 'name: moe', 'can do OO-style binding');

    bound = _.bind(func, null, 'curly');
-    equal(bound(), 'name: curly', 'can bind without specifying a context');
+    var result = bound();
+    // Work around a PhantomJS bug when applying a function with null|undefined.
+    ok(result === 'name: curly' || result === 'name: ' + window.name, 'can bind without specifying a context');

    func = function(salutation, name) { return salutation + ': ' + name; };
    func = _.bind(func, this, 'hello');
@@ -40,7 +44,7 @@
    equal(boundf().hello, 'moe curly', "When called without the new operator, it's OK to be bound to the context");
    ok(newBoundf instanceof F, 'a bound instance is an instance of the original function');

-    raises(function() { _.bind('notafunction'); }, TypeError, 'throws an error when binding to a non-function');
+    throws(function() { _.bind('notafunction'); }, TypeError, 'throws an error when binding to a non-function');
  });

  test('partial', function() {
@@ -59,6 +63,20 @@

    func = _.partial(function() { return typeof arguments[2]; }, _, 'b', _, 'd');
    equal(func('a'), 'undefined', 'unfilled placeholders are undefined');
+
+    // passes context
+    function MyWidget(name, options) {
+      this.name = name;
+      this.options = options;
+    }
+    MyWidget.prototype.get = function() {
+      return this.name;
+    };
+    var MyWidgetWithCoolOpts = _.partial(MyWidget, _, {a: 1});
+    var widget = new MyWidgetWithCoolOpts('foo');
+    ok(widget instanceof MyWidget, 'Can partially bind a constructor');
+    equal(widget.get(), 'foo', 'keeps prototype');
+    deepEqual(widget.options, {a: 1});
  });

  test('bindAll', function() {
@@ -81,9 +99,9 @@
      sayLast : function() { return this.sayHi(_.last(arguments)); }
    };

-    raises(function() { _.bindAll(moe); }, Error, 'throws an error for bindAll with no functions named');
-    raises(function() { _.bindAll(moe, 'sayBye'); }, TypeError, 'throws an error for bindAll if the given key is undefined');
-    raises(function() { _.bindAll(moe, 'name'); }, TypeError, 'throws an error for bindAll if the given key is not a function');
+    throws(function() { _.bindAll(moe); }, Error, 'throws an error for bindAll with no functions named');
+    throws(function() { _.bindAll(moe, 'sayBye'); }, TypeError, 'throws an error for bindAll if the given key is undefined');
+    throws(function() { _.bindAll(moe, 'name'); }, TypeError, 'throws an error for bindAll if the given key is not a function');

    _.bindAll(moe, 'sayHi', 'sayLast');
    curly.sayHi = moe.sayHi;
@@ -548,6 +566,16 @@
  test('iteratee', function() {
    var identity = _.iteratee();
    equal(identity, _.identity, '_.iteratee is exposed as an external function.');
+
+    function fn() {
+      return arguments;
+    }
+    _.each([_.iteratee(fn), _.iteratee(fn, {})], function(cb) {
+      equal(cb().length, 0);
+      deepEqual(_.toArray(cb(1, 2, 3)), _.range(1, 4));
+      deepEqual(_.toArray(cb(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)), _.range(1, 11));
+    });
+    
  });

 }());
--- a/vendor/underscore/test/objects.js
+++ b/vendor/underscore/test/objects.js
@@ -1,7 +1,9 @@
 (function() {
+  var _ = typeof require == 'function' ? require('..') : window._;

-  module('Objects');
-  /* global iObject, iElement, iArguments, iFunction, iArray, iString, iNumber, iBoolean, iDate, iRegExp, iNaN, iNull, iUndefined, ActiveXObject */
+  QUnit.module('Objects');
+
+  var testElement = typeof document === 'object' ? document.createElement('div') : void 0;

  test('keys', function() {
    deepEqual(_.keys({one : 1, two : 2}), ['one', 'two'], 'can extract the keys from an object');
@@ -13,6 +15,62 @@
    deepEqual(_.keys(1), []);
    deepEqual(_.keys('a'), []);
    deepEqual(_.keys(true), []);
+
+    // keys that may be missed if the implementation isn't careful
+    var trouble = {
+      'constructor': Object,
+      'valueOf': _.noop,
+      'hasOwnProperty': null,
+      'toString': 5,
+      'toLocaleString': undefined,
+      'propertyIsEnumerable': /a/,
+      'isPrototypeOf': this,
+      '__defineGetter__': Boolean,
+      '__defineSetter__': {},
+      '__lookupSetter__': false,
+      '__lookupGetter__': []
+    };
+    var troubleKeys = ['constructor', 'valueOf', 'hasOwnProperty', 'toString', 'toLocaleString', 'propertyIsEnumerable',
+                  'isPrototypeOf', '__defineGetter__', '__defineSetter__', '__lookupSetter__', '__lookupGetter__'].sort();
+    deepEqual(_.keys(trouble).sort(), troubleKeys, 'matches non-enumerable properties');
+  });
+
+  test('allKeys', function() {
+    deepEqual(_.allKeys({one : 1, two : 2}), ['one', 'two'], 'can extract the allKeys from an object');
+    // the test above is not safe because it relies on for-in enumeration order
+    var a = []; a[1] = 0;
+    deepEqual(_.allKeys(a), ['1'], 'is not fooled by sparse arrays; see issue #95');
+
+    a.a = a;
+    deepEqual(_.allKeys(a), ['1', 'a'], 'is not fooled by sparse arrays with additional properties');
+
+    _.each([null, void 0, 1, 'a', true, NaN, {}, [], new Number(5), new Date(0)], function(val) {
+      deepEqual(_.allKeys(val), []);
+    });
+
+    // allKeys that may be missed if the implementation isn't careful
+    var trouble = {
+      constructor: Object,
+      valueOf: _.noop,
+      hasOwnProperty: null,
+      toString: 5,
+      toLocaleString: undefined,
+      propertyIsEnumerable: /a/,
+      isPrototypeOf: this
+    };
+    var troubleKeys = ['constructor', 'valueOf', 'hasOwnProperty', 'toString', 'toLocaleString', 'propertyIsEnumerable',
+                  'isPrototypeOf'].sort();
+    deepEqual(_.allKeys(trouble).sort(), troubleKeys, 'matches non-enumerable properties');
+
+    function A() {}
+    A.prototype.foo = 'foo';
+    var b = new A();
+    b.bar = 'bar';
+    deepEqual(_.allKeys(b).sort(), ['bar', 'foo'], 'should include inherited keys');
+
+    function y() {}
+    y.x = 'z';
+    deepEqual(_.allKeys(y), ['x'], 'should get keys from constructor');
  });

  test('values', function() {
@@ -63,7 +121,9 @@
    F.prototype = {a: 'b'};
    var subObj = new F();
    subObj.c = 'd';
-    deepEqual(_.extend({}, subObj), {c: 'd'}, 'extend ignores any properties but own from source');
+    deepEqual(_.extend({}, subObj), {a: 'b', c: 'd'}, 'extend copies all properties from source');
+    _.extend(subObj, {});
+    ok(!subObj.hasOwnProperty('a'), "extend does not convert destination object's 'in' properties to 'own' properties");

    try {
      result = {};
@@ -76,6 +136,36 @@
    strictEqual(_.extend(undefined, {a: 1}), undefined, 'extending undefined results in undefined');
  });

+  test('extendOwn', function() {
+    var result;
+    equal(_.extendOwn({}, {a: 'b'}).a, 'b', 'can assign an object with the attributes of another');
+    equal(_.extendOwn({a: 'x'}, {a: 'b'}).a, 'b', 'properties in source override destination');
+    equal(_.extendOwn({x: 'x'}, {a: 'b'}).x, 'x', "properties not in source don't get overriden");
+    result = _.extendOwn({x: 'x'}, {a: 'a'}, {b: 'b'});
+    deepEqual(result, {x: 'x', a: 'a', b: 'b'}, 'can assign from multiple source objects');
+    result = _.assign({x: 'x'}, {a: 'a', x: 2}, {a: 'b'});
+    deepEqual(result, {x: 2, a: 'b'}, 'assigning from multiple source objects last property trumps');
+    deepEqual(_.extendOwn({}, {a: void 0, b: null}), {a: void 0, b: null}, 'assign copies undefined values');
+
+    var F = function() {};
+    F.prototype = {a: 'b'};
+    var subObj = new F();
+    subObj.c = 'd';
+    deepEqual(_.extendOwn({}, subObj), {c: 'd'}, 'assign copies own properties from source');
+
+    result = {};
+    deepEqual(_.assign(result, null, undefined, {a: 1}), {a: 1}, 'should not error on `null` or `undefined` sources');
+
+    _.each(['a', 5, null, false], function(val) {
+      strictEqual(_.assign(val, {a: 1}), val, 'assigning non-objects results in returning the non-object value');
+    });
+
+    strictEqual(_.extendOwn(undefined, {a: 1}), undefined, 'assigning undefined results in undefined');
+
+    result = _.extendOwn({a: 1, 0: 2, 1: '5', length: 6}, {0: 1, 1: 2, length: 2});
+    deepEqual(result, {a: 1, 0: 1, 1: 2, length: 2}, 'assign should treat array-like objects like normal objects');
+  });
+
  test('pick', function() {
    var result;
    result = _.pick({a: 1, b: 2, c: 3}, 'a', 'c');
@@ -87,8 +177,10 @@
    result = _.pick(['a', 'b'], 1);
    deepEqual(result, {1: 'b'}, 'can pick numeric properties');

-    deepEqual(_.pick(null, 'a', 'b'), {}, 'non objects return empty object');
-    deepEqual(_.pick(undefined, 'toString'), {}, 'null/undefined return empty object');
+    _.each([null, void 0], function(val) {
+      deepEqual(_.pick(val, 'hasOwnProperty'), {}, 'Called with null/undefined');
+      deepEqual(_.pick(val, _.constant(true)), {});
+    });
    deepEqual(_.pick(5, 'toString', 'b'), {toString: Number.prototype.toString}, 'can iterate primitives');

    var data = {a: 1, b: 2, c: 3};
@@ -108,6 +200,11 @@
    deepEqual(_.pick(data, function(val, key) {
      return this[key] === 3 && this === instance;
    }, instance), {c: 3}, 'function is given context');
+
+    ok(!_.has(_.pick({}, 'foo'), 'foo'), 'does not set own property if property not in object');
+    _.pick(data, function(value, key, obj) {
+      equal(obj, data, 'passes same object as third parameter of iteratee');
+    });
  });

  test('omit', function() {
@@ -419,9 +516,6 @@
    b = _({x: 1, y: 2}).chain();
    equal(_.isEqual(a.isEqual(b), _(true)), true, '`isEqual` can be chained');

-    // Objects from another frame.
-    ok(_.isEqual({}, iObject));
-
    // Objects without a `constructor` property
    if (Object.create) {
        a = Object.create(null, {x: {value: 1, enumerable: true}});
@@ -454,37 +548,18 @@
    var args = function(){ return arguments; };
    ok(_.isEmpty(args()), 'empty arguments object is empty');
    ok(!_.isEmpty(args('')), 'non-empty arguments object is not empty');
+
+    // covers collecting non-enumerable properties in IE < 9
+    var nonEnumProp = {'toString': 5};
+    ok(!_.isEmpty(nonEnumProp), 'non-enumerable property is not empty');
  });

-  // Setup remote variables for iFrame tests.
-  var iframe = document.createElement('iframe');
-  iframe.frameBorder = iframe.height = iframe.width = 0;
-  document.body.appendChild(iframe);
-  var iDoc = (iDoc = iframe.contentDocument || iframe.contentWindow).document || iDoc;
-  iDoc.write(
-    '<script>' +
-    '  parent.iElement   = document.createElement("div");' +
-    '  parent.iArguments = (function(){ return arguments; })(1, 2, 3);' +
-    '  parent.iArray     = [1, 2, 3];' +
-    '  parent.iString    = new String("hello");' +
-    '  parent.iNumber    = new Number(100);' +
-    '  parent.iFunction  = (function(){});' +
-    '  parent.iDate      = new Date();' +
-    '  parent.iRegExp    = /hi/;' +
-    '  parent.iNaN       = NaN;' +
-    '  parent.iNull      = null;' +
-    '  parent.iBoolean   = new Boolean(false);' +
-    '  parent.iUndefined = undefined;' +
-    '  parent.iObject     = {};' +
-    '</script>'
-  );
-  iDoc.close();
-
-  test('isElement', function() {
-    ok(!_.isElement('div'), 'strings are not dom elements');
-    ok(_.isElement(document.body), 'the body tag is a DOM element');
-    ok(_.isElement(iElement), 'even from another frame');
-  });
+  if (typeof document === 'object') {
+    test('isElement', function() {
+      ok(!_.isElement('div'), 'strings are not dom elements');
+      ok(_.isElement(testElement), 'an element is a DOM element');
+    });
+  }

  test('isArguments', function() {
    var args = (function(){ return arguments; }(1, 2, 3));
@@ -493,16 +568,15 @@
    ok(_.isArguments(args), 'but the arguments object is an arguments object');
    ok(!_.isArguments(_.toArray(args)), 'but not when it\'s converted into an array');
    ok(!_.isArguments([1, 2, 3]), 'and not vanilla arrays.');
-    ok(_.isArguments(iArguments), 'even from another frame');
  });

  test('isObject', function() {
    ok(_.isObject(arguments), 'the arguments object is object');
    ok(_.isObject([1, 2, 3]), 'and arrays');
-    ok(_.isObject(document.body), 'and DOM element');
-    ok(_.isObject(iElement), 'even from another frame');
+    if (testElement) {
+      ok(_.isObject(testElement), 'and DOM element');
+    }
    ok(_.isObject(function () {}), 'and functions');
-    ok(_.isObject(iFunction), 'even from another frame');
    ok(!_.isObject(null), 'but not null');
    ok(!_.isObject(undefined), 'and not undefined');
    ok(!_.isObject('string'), 'and not string');
@@ -515,16 +589,17 @@
    ok(!_.isArray(undefined), 'undefined vars are not arrays');
    ok(!_.isArray(arguments), 'the arguments object is not an array');
    ok(_.isArray([1, 2, 3]), 'but arrays are');
-    ok(_.isArray(iArray), 'even from another frame');
  });

  test('isString', function() {
    var obj = new String('I am a string object');
-    ok(!_.isString(document.body), 'the document body is not a string');
+    if (testElement) {
+      ok(!_.isString(testElement), 'an element is not a string');
+    }
    ok(_.isString([1, 2, 3].join(', ')), 'but strings are');
-    ok(_.isString(iString), 'even from another frame');
-    ok(_.isString('I am a string literal'), 'string literals are');
+    strictEqual(_.isString('I am a string literal'), true, 'string literals are');
    ok(_.isString(obj), 'so are String objects');
+    strictEqual(_.isString(1), false);
  });

  test('isNumber', function() {
@@ -534,7 +609,6 @@
    ok(_.isNumber(3 * 4 - 7 / 10), 'but numbers are');
    ok(_.isNumber(NaN), 'NaN *is* a number');
    ok(_.isNumber(Infinity), 'Infinity is a number');
-    ok(_.isNumber(iNumber), 'even from another frame');
    ok(!_.isNumber('1'), 'numeric strings are not numbers');
  });

@@ -549,7 +623,6 @@
    ok(!_.isBoolean(null), 'null is not a boolean');
    ok(_.isBoolean(true), 'but true is');
    ok(_.isBoolean(false), 'and so is false');
-    ok(_.isBoolean(iBoolean), 'even from another frame');
  });

  test('isFunction', function() {
@@ -557,21 +630,35 @@
    ok(!_.isFunction([1, 2, 3]), 'arrays are not functions');
    ok(!_.isFunction('moe'), 'strings are not functions');
    ok(_.isFunction(_.isFunction), 'but functions are');
-    ok(_.isFunction(iFunction), 'even from another frame');
    ok(_.isFunction(function(){}), 'even anonymous ones');
+
+    if (testElement) {
+      ok(!_.isFunction(testElement), 'elements are not functions');
+    }
  });

+  if (typeof Int8Array !== 'undefined') {
+    test('#1929 Typed Array constructors are functions', function() {
+      _.chain(['Float32Array', 'Float64Array', 'Int8Array', 'Int16Array', 'Int32Array', 'Uint8Array', 'Uint8ClampedArray', 'Uint16Array', 'Uint32Array'])
+      .map(_.propertyOf(typeof GLOBAL != 'undefined' ? GLOBAL : window))
+      .compact()
+      .each(function(TypedArray) {
+          // PhantomJS reports `typeof UInt8Array == 'object'` and doesn't report toString TypeArray
+          // as a function
+          strictEqual(_.isFunction(TypedArray), Object.prototype.toString.call(TypedArray) === '[object Function]');
+      });
+    });
+  }
+
  test('isDate', function() {
    ok(!_.isDate(100), 'numbers are not dates');
    ok(!_.isDate({}), 'objects are not dates');
    ok(_.isDate(new Date()), 'but dates are');
-    ok(_.isDate(iDate), 'even from another frame');
  });

  test('isRegExp', function() {
    ok(!_.isRegExp(_.identity), 'functions are not RegExps');
    ok(_.isRegExp(/identity/), 'but RegExps are');
-    ok(_.isRegExp(iRegExp), 'even from another frame');
  });

  test('isFinite', function() {
@@ -595,7 +682,6 @@
    ok(!_.isNaN(null), 'null is not NaN');
    ok(!_.isNaN(0), '0 is not NaN');
    ok(_.isNaN(NaN), 'but NaN is');
-    ok(_.isNaN(iNaN), 'even from another frame');
    ok(_.isNaN(new Number(NaN)), 'wrapped NaN is still NaN');
  });

@@ -603,7 +689,6 @@
    ok(!_.isNull(undefined), 'undefined is not null');
    ok(!_.isNull(NaN), 'NaN is not null');
    ok(_.isNull(null), 'but null is');
-    ok(_.isNull(iNull), 'even from another frame');
  });

  test('isUndefined', function() {
@@ -613,20 +698,20 @@
    ok(!_.isUndefined(NaN), 'NaN is defined');
    ok(_.isUndefined(), 'nothing is undefined');
    ok(_.isUndefined(undefined), 'undefined is undefined');
-    ok(_.isUndefined(iUndefined), 'even from another frame');
  });

-  if (window.ActiveXObject) {
-    test('IE host objects', function() {
-      var xml = new ActiveXObject('Msxml2.DOMDocument.3.0');
-      ok(!_.isNumber(xml));
-      ok(!_.isBoolean(xml));
-      ok(!_.isNaN(xml));
-      ok(!_.isFunction(xml));
-      ok(!_.isNull(xml));
-      ok(!_.isUndefined(xml));
-    });
-  }
+  test('isError', function() {
+    ok(!_.isError(1), 'numbers are not Errors');
+    ok(!_.isError(null), 'null is not an Error');
+    ok(!_.isError(Error), 'functions are not Errors');
+    ok(_.isError(new Error()), 'Errors are Errors');
+    ok(_.isError(new EvalError()), 'EvalErrors are Errors');
+    ok(_.isError(new RangeError()), 'RangeErrors are Errors');
+    ok(_.isError(new ReferenceError()), 'ReferenceErrors are Errors');
+    ok(_.isError(new SyntaxError()), 'SyntaxErrors are Errors');
+    ok(_.isError(new TypeError()), 'TypeErrors are Errors');
+    ok(_.isError(new URIError()), 'URIErrors are Errors');
+  });

  test('tap', function() {
    var intercepted = null;
@@ -658,22 +743,62 @@
    strictEqual(_.has(undefined, 'foo'), false, 'has() returns false for undefined');
  });

-  test('matches', function() {
+  test('isMatch', function() {
+    var moe = {name: 'Moe Howard', hair: true};
+    var curly = {name: 'Curly Howard', hair: false};
+
+    equal(_.isMatch(moe, {hair: true}), true, 'Returns a boolean');
+    equal(_.isMatch(curly, {hair: true}), false, 'Returns a boolean');
+
+    equal(_.isMatch(5, {__x__: undefined}), false, 'can match undefined props on primitives');
+    equal(_.isMatch({__x__: undefined}, {__x__: undefined}), true, 'can match undefined props');
+
+    equal(_.isMatch(null, {}), true, 'Empty spec called with null object returns true');
+    equal(_.isMatch(null, {a: 1}), false, 'Non-empty spec called with null object returns false');
+
+    _.each([null, undefined], function(item) { strictEqual(_.isMatch(item, null), true, 'null matches null'); });
+    _.each([null, undefined], function(item) { strictEqual(_.isMatch(item, null), true, 'null matches {}'); });
+    strictEqual(_.isMatch({b: 1}, {a: undefined}), false, 'handles undefined values (1683)');
+
+    _.each([true, 5, NaN, null, undefined], function(item) {
+      strictEqual(_.isMatch({a: 1}, item), true, 'treats primitives as empty');
+    });
+
+    function Prototest() {}
+    Prototest.prototype.x = 1;
+    var specObj = new Prototest;
+    equal(_.isMatch({x: 2}, specObj), true, 'spec is restricted to own properties');
+
+    specObj.y = 5;
+    equal(_.isMatch({x: 1, y: 5}, specObj), true);
+    equal(_.isMatch({x: 1, y: 4}, specObj), false);
+
+    ok(_.isMatch(specObj, {x: 1, y: 5}), 'inherited and own properties are checked on the test object');
+
+    Prototest.x = 5;
+    ok(_.isMatch({x: 5, y: 1}, Prototest), 'spec can be a function');
+
+    //null edge cases
+    var oCon = {'constructor': Object};
+    deepEqual(_.map([null, undefined, 5, {}], _.partial(_.isMatch, _, oCon)), [false, false, false, true], 'doesnt falsey match constructor on undefined/null');
+  });
+
+  test('matcher', function() {
    var moe = {name: 'Moe Howard', hair: true};
    var curly = {name: 'Curly Howard', hair: false};
    var stooges = [moe, curly];

-    equal(_.matches({hair: true})(moe), true, 'Returns a boolean');
-    equal(_.matches({hair: true})(curly), false, 'Returns a boolean');
+    equal(_.matcher({hair: true})(moe), true, 'Returns a boolean');
+    equal(_.matcher({hair: true})(curly), false, 'Returns a boolean');

-    equal(_.matches({__x__: undefined})(5), false, 'can match undefined props on primitives');
-    equal(_.matches({__x__: undefined})({__x__: undefined}), true, 'can match undefined props');
+    equal(_.matcher({__x__: undefined})(5), false, 'can match undefined props on primitives');
+    equal(_.matcher({__x__: undefined})({__x__: undefined}), true, 'can match undefined props');

-    equal(_.matches({})(null), true, 'Empty spec called with null object returns true');
-    equal(_.matches({a: 1})(null), false, 'Non-empty spec called with null object returns false');
+    equal(_.matcher({})(null), true, 'Empty spec called with null object returns true');
+    equal(_.matcher({a: 1})(null), false, 'Non-empty spec called with null object returns false');

-    ok(_.find(stooges, _.matches({hair: false})) === curly, 'returns a predicate that can be used by finding functions.');
-    ok(_.find(stooges, _.matches(moe)) === moe, 'can be used to locate an object exists in a collection.');
+    ok(_.find(stooges, _.matcher({hair: false})) === curly, 'returns a predicate that can be used by finding functions.');
+    ok(_.find(stooges, _.matcher(moe)) === moe, 'can be used to locate an object exists in a collection.');
    deepEqual(_.where([null, undefined], {a: 1}), [], 'Do not throw on null values.');

    deepEqual(_.where([null, undefined], null), [null, undefined], 'null matches null');
@@ -687,22 +812,22 @@
    function Prototest() {}
    Prototest.prototype.x = 1;
    var specObj = new Prototest;
-    var protospec = _.matches(specObj);
+    var protospec = _.matcher(specObj);
    equal(protospec({x: 2}), true, 'spec is restricted to own properties');

    specObj.y = 5;
-    protospec = _.matches(specObj);
+    protospec = _.matcher(specObj);
    equal(protospec({x: 1, y: 5}), true);
    equal(protospec({x: 1, y: 4}), false);

-    ok(_.matches({x: 1, y: 5})(specObj), 'inherited and own properties are checked on the test object');
+    ok(_.matcher({x: 1, y: 5})(specObj), 'inherited and own properties are checked on the test object');

    Prototest.x = 5;
-    ok(_.matches(Prototest)({x: 5, y: 1}), 'spec can be a function');
+    ok(_.matcher(Prototest)({x: 5, y: 1}), 'spec can be a function');

    // #1729
    var o = {'b': 1};
-    var m = _.matches(o);
+    var m = _.matcher(o);

    equal(m({'b': 1}), true);
    o.b = 2;
@@ -711,8 +836,159 @@


    //null edge cases
-    var oCon = _.matches({'constructor': Object});
-    deepEqual(_.map([null, undefined, 5, {}], oCon), [false, false, false, true], 'doesnt fasley match constructor on undefined/null');
+    var oCon = _.matcher({'constructor': Object});
+    deepEqual(_.map([null, undefined, 5, {}], oCon), [false, false, false, true], 'doesnt falsey match constructor on undefined/null');
  });

+  test('matcher', function() {
+    var moe = {name: 'Moe Howard', hair: true};
+    var curly = {name: 'Curly Howard', hair: false};
+    var stooges = [moe, curly];
+
+    equal(_.matcher({hair: true})(moe), true, 'Returns a boolean');
+    equal(_.matcher({hair: true})(curly), false, 'Returns a boolean');
+
+    equal(_.matcher({__x__: undefined})(5), false, 'can match undefined props on primitives');
+    equal(_.matcher({__x__: undefined})({__x__: undefined}), true, 'can match undefined props');
+
+    equal(_.matcher({})(null), true, 'Empty spec called with null object returns true');
+    equal(_.matcher({a: 1})(null), false, 'Non-empty spec called with null object returns false');
+
+    ok(_.find(stooges, _.matcher({hair: false})) === curly, 'returns a predicate that can be used by finding functions.');
+    ok(_.find(stooges, _.matcher(moe)) === moe, 'can be used to locate an object exists in a collection.');
+    deepEqual(_.where([null, undefined], {a: 1}), [], 'Do not throw on null values.');
+
+    deepEqual(_.where([null, undefined], null), [null, undefined], 'null matches null');
+    deepEqual(_.where([null, undefined], {}), [null, undefined], 'null matches {}');
+    deepEqual(_.where([{b: 1}], {a: undefined}), [], 'handles undefined values (1683)');
+
+    _.each([true, 5, NaN, null, undefined], function(item) {
+      deepEqual(_.where([{a: 1}], item), [{a: 1}], 'treats primitives as empty');
+    });
+
+    function Prototest() {}
+    Prototest.prototype.x = 1;
+    var specObj = new Prototest;
+    var protospec = _.matcher(specObj);
+    equal(protospec({x: 2}), true, 'spec is restricted to own properties');
+
+    specObj.y = 5;
+    protospec = _.matcher(specObj);
+    equal(protospec({x: 1, y: 5}), true);
+    equal(protospec({x: 1, y: 4}), false);
+
+    ok(_.matcher({x: 1, y: 5})(specObj), 'inherited and own properties are checked on the test object');
+
+    Prototest.x = 5;
+    ok(_.matcher(Prototest)({x: 5, y: 1}), 'spec can be a function');
+
+    // #1729
+    var o = {'b': 1};
+    var m = _.matcher(o);
+
+    equal(m({'b': 1}), true);
+    o.b = 2;
+    o.a = 1;
+    equal(m({'b': 1}), true, 'changing spec object doesnt change matches result');
+
+
+    //null edge cases
+    var oCon = _.matcher({'constructor': Object});
+    deepEqual(_.map([null, undefined, 5, {}], oCon), [false, false, false, true], 'doesnt falsey match constructor on undefined/null');
+  });
+
+  test('findKey', function() {
+    var objects = {
+      a: {'a': 0, 'b': 0},
+      b: {'a': 1, 'b': 1},
+      c: {'a': 2, 'b': 2}
+    };
+
+    equal(_.findKey(objects, function(obj) {
+      return obj.a === 0;
+    }), 'a');
+
+    equal(_.findKey(objects, function(obj) {
+      return obj.b * obj.a === 4;
+    }), 'c');
+
+    equal(_.findKey(objects, 'a'), 'b', 'Uses lookupIterator');
+
+    equal(_.findKey(objects, function(obj) {
+      return obj.b * obj.a === 5;
+    }), undefined);
+
+    strictEqual(_.findKey([1, 2, 3, 4, 5, 6], function(obj) {
+      return obj === 3;
+    }), '2', 'Keys are strings');
+
+    strictEqual(_.findKey(objects, function(a) {
+      return a.foo === null;
+    }), undefined);
+
+    _.findKey({a: {a: 1}}, function(a, key, obj) {
+      equal(key, 'a');
+      deepEqual(obj, {a: {a: 1}});
+      strictEqual(this, objects, 'called with context');
+    }, objects);
+
+    var array = [1, 2, 3, 4];
+    array.match = 55;
+    strictEqual(_.findKey(array, function(x) { return x === 55; }), 'match', 'matches array-likes keys');
+  });
+
+
+  test('mapObject', function() {
+   var obj = {'a': 1, 'b': 2};
+   var objects = {
+      a: {'a': 0, 'b': 0},
+      b: {'a': 1, 'b': 1},
+      c: {'a': 2, 'b': 2}
+    };
+
+    deepEqual(_.mapObject(obj, function(val) {
+      return val * 2;
+    }), {'a': 2, 'b': 4}, 'simple objects');
+
+    deepEqual(_.mapObject(objects, function(val) {
+      return _.reduce(val, function(memo,v){
+       return memo + v;
+      },0);
+    }), {'a': 0, 'b': 2, 'c': 4}, 'nested objects');
+
+    deepEqual(_.mapObject(obj, function(val,key,obj) {
+      return obj[key] * 2;
+    }), {'a': 2, 'b': 4}, 'correct keys');
+
+    deepEqual(_.mapObject([1,2], function(val) {
+      return val * 2;
+    }), {'0': 2, '1': 4}, 'check behavior for arrays');
+
+    deepEqual(_.mapObject(obj, function(val) {
+      return val * this.multiplier;
+    }, {multiplier : 3}), {'a': 3, 'b': 6}, 'keep context');
+
+    deepEqual(_.mapObject({a: 1}, function() {
+      return this.length;
+    }, [1,2]), {'a': 2}, 'called with context');
+
+    var ids = _.mapObject({length: 2, 0: {id: '1'}, 1: {id: '2'}}, function(n){
+      return n.id;
+    });
+    deepEqual(ids, {'length': undefined, '0': '1', '1': '2'}, 'Check with array-like objects');
+
+    // Passing a property name like _.pluck.
+    var people = {'a': {name : 'moe', age : 30}, 'b': {name : 'curly', age : 50}};
+    deepEqual(_.mapObject(people, 'name'), {'a': 'moe', 'b': 'curly'}, 'predicate string map to object properties');
+
+    _.each([null, void 0, 1, 'abc', [], {}, undefined], function(val){
+      deepEqual(_.mapObject(val, _.identity), {}, 'mapValue identity');
+    });
+
+    var Proto = function(){this.a = 1;};
+    Proto.prototype.b = 1;
+    var protoObj = new Proto();
+    deepEqual(_.mapObject(protoObj, _.identity), {a: 1}, 'ignore inherited values from prototypes');
+
+  });
 }());
--- a/vendor/underscore/test/utility.js
+++ b/vendor/underscore/test/utility.js
@@ -1,8 +1,8 @@
 (function() {
-
+  var _ = typeof require == 'function' ? require('..') : window._;
  var templateSettings;

-  module('Utility', {
+  QUnit.module('Utility', {

    setup: function() {
      templateSettings = _.clone(_.templateSettings);
@@ -21,13 +21,13 @@
  });

  test('identity', function() {
-    var moe = {name : 'moe'};
-    equal(_.identity(moe), moe, 'moe is the same as his identity');
+    var stooge = {name : 'moe'};
+    equal(_.identity(stooge), stooge, 'stooge is the same as his identity');
  });

  test('constant', function() {
-    var moe = {name : 'moe'};
-    equal(_.constant(moe)(), moe, 'should create a function that returns moe');
+    var stooge = {name : 'moe'};
+    equal(_.constant(stooge)(), stooge, 'should create a function that returns stooge');
  });

  test('noop', function() {
@@ -35,8 +35,28 @@
  });

  test('property', function() {
-    var moe = {name : 'moe'};
-    equal(_.property('name')(moe), 'moe', 'should return the property with the given name');
+    var stooge = {name : 'moe'};
+    equal(_.property('name')(stooge), 'moe', 'should return the property with the given name');
+    equal(_.property('name')(null), undefined, 'should return undefined for null values');
+    equal(_.property('name')(undefined), undefined, 'should return undefined for undefined values');
+  });
+  
+  test('propertyOf', function() {
+    var stoogeRanks = _.propertyOf({curly: 2, moe: 1, larry: 3});
+    equal(stoogeRanks('curly'), 2, 'should return the property with the given name');
+    equal(stoogeRanks(null), undefined, 'should return undefined for null values');
+    equal(stoogeRanks(undefined), undefined, 'should return undefined for undefined values');
+    
+    function MoreStooges() { this.shemp = 87; }
+    MoreStooges.prototype = {curly: 2, moe: 1, larry: 3};
+    var moreStoogeRanks = _.propertyOf(new MoreStooges());
+    equal(moreStoogeRanks('curly'), 2, 'should return properties from further up the prototype chain');
+    
+    var nullPropertyOf = _.propertyOf(null);
+    equal(nullPropertyOf('curly'), undefined, 'should return undefined when obj is null');
+    
+    var undefPropertyOf = _.propertyOf(undefined);
+    equal(undefPropertyOf('curly'), undefined, 'should return undefined when obj is undefined');
  });

  test('random', function() {
@@ -268,6 +288,41 @@
    strictEqual(_.result(null, 'x'), undefined);
  });

+  test('result returns a default value if object is null or undefined', function() {
+    strictEqual(_.result(null, 'b', 'default'), 'default');
+    strictEqual(_.result(undefined, 'c', 'default'), 'default');
+    strictEqual(_.result(''.match('missing'), 1, 'default'), 'default');
+  });
+
+  test('result returns a default value if property of object is missing', function() {
+    strictEqual(_.result({d: null}, 'd', 'default'), null);
+    strictEqual(_.result({e: false}, 'e', 'default'), false);
+  });
+
+  test('result only returns the default value if the object does not have the property or is undefined', function() {
+    strictEqual(_.result({}, 'b', 'default'), 'default');
+    strictEqual(_.result({d: undefined}, 'd', 'default'), 'default');
+  });
+
+  test('result does not return the default if the property of an object is found in the prototype', function() {
+    var Foo = function(){};
+    Foo.prototype.bar = 1;
+    strictEqual(_.result(new Foo, 'bar', 2), 1);
+  });
+
+  test('result does use the fallback when the result of invoking the property is undefined', function() {
+    var obj = {a: function() {}};
+    strictEqual(_.result(obj, 'a', 'failed'), undefined);
+  });
+
+  test('result fallback can use a function', function() {
+    var obj = {a: [1, 2, 3]};
+    strictEqual(_.result(obj, 'b', _.constant(5)), 5);
+    strictEqual(_.result(obj, 'b', function() {
+      return this.a;
+    }), obj.a, 'called with context');
+  });
+
  test('_.templateSettings.variable', function() {
    var s = '<%=data.x%>';
    var data = {x: 'x'};
--- a/vendor/underscore/underscore-min.js
+++ b/vendor/underscore/underscore-min.js
--- a/vendor/underscore/underscore.js
+++ b/vendor/underscore/underscore.js
Author	SHA1	Message	Date
jdalton	ab2269717d	Bump to v3.4.0.	2015-03-06 00:55:11 -08:00
jdalton	b5a42cfa75	Rebuild lodash and docs.	2015-03-05 23:01:16 -08:00
jdalton	6693416d0a	Tweak `_.isEmpty` and `_.size` docs. [ci skip]	2015-03-05 22:59:18 -08:00
jdalton	9cdf013933	Ensure `length` hit of for lazy eval is checked on initial lazy call. [closes #997 ]	2015-03-05 22:50:16 -08:00
jdalton	1dfaa30520	Add `inRange` and `sortByOrder` to `lodash` doc notes. [ci skip]	2015-03-05 08:27:51 -08:00
jdalton	d898fcee75	Simplify the `root` assignment.	2015-03-05 07:41:22 -08:00
jdalton	1e647a2058	Rename test module for consistency.	2015-03-04 08:43:37 -08:00
jdalton	10e379d862	Add `_.sortByOrder` tests.	2015-03-04 08:43:37 -08:00
jdalton	ee456493c4	Remove argument unrolling in `LazyWrapper` assignments.	2015-03-04 08:43:37 -08:00
jdalton	69e9c7d0be	Expand `_.defaults` test for working with `_.reduce`.	2015-03-04 08:43:37 -08:00
jdalton	adce718d63	Another cleanup pass on `createAssigner`.	2015-03-04 08:43:37 -08:00
jdalton	3a94a65f12	Tweak `root` assignment to work with webpack in a web worker. [closes ##313]	2015-03-04 08:43:37 -08:00
jdalton	bbe30db1b7	Avoid test fails for npm builds.	2015-03-03 12:13:48 -08:00
jdalton	68f3c43805	Add `createComposer` to reduce the definition of `_.flow` and `_.flowRight`.	2015-03-03 11:40:24 -08:00
jdalton	3c99ecda60	Move more code out of the try-block in `_.attempt`.	2015-03-03 11:40:24 -08:00
jdalton	b1366696c4	Simplify guard check in `_.sortByAll`.	2015-03-03 11:40:24 -08:00
jdalton	534aeb4065	Use `args` alias of `arguments` in `_.difference`, `_.pull`, & `_.memoize`.	2015-03-03 11:40:24 -08:00
jdalton	cc77a36dd9	Cleanup `createAssigner`.	2015-03-03 11:40:17 -08:00
jdalton	5991068fdf	Add more lazy chaining tests.	2015-03-03 09:22:59 -08:00
octref	913778d5ab	Let `createAssigner` get correct customizer When `_.defaults` is invoked using `_.reduce` / `_.reduceRight` `createAssigner` discards the customizer, so the effect is `_.assign` but not `_.defaults` ``` _.reduce([{ 'user': 'barney' }, { 'user': 'fred' }], _.defaults) // -> {user: "fred"} _.reduceRight([{ 'user': 'barney' }, { 'user': 'fred' }], _.defaults) // -> {user: "barney"} // Fixed _.reduce([{ 'user': 'barney' }, { 'user': 'fred' }], _.defaults) // -> {user: "barney"} _.reduceRight([{ 'user': 'barney' }, { 'user': 'fred' }], _.defaults) // -> {user: "fred"} ```	2015-03-02 21:19:11 -08:00
h7lin	9a8345d4f9	Fix doc example in `_.partition`. [ci skip]	2015-03-02 20:25:29 -08:00
jdalton	ba9bd3bc76	Better match words with one character. [closes #1012 ]	2015-03-02 20:23:14 -08:00
jdalton	aad0070b77	Narrow `new LodashWrapper` to `dropWhile`.	2015-03-02 20:23:14 -08:00
jdalton	d192e69811	Break lazy chains before or . [closes #1011 ]	2015-03-02 09:19:05 -08:00
jdalton	ec8d919b93	Cleanup .	2015-03-02 09:17:16 -08:00
octref	4ce4f1d758	Add _.sortByOrder.	2015-03-01 14:04:00 -08:00
jdalton	3aa40d4df6	Simplify `baseFlatten` and always provide a `fromIndex`.	2015-03-01 01:22:38 -08:00
jdalton	ec1be41b62	Correct `_.flatten` benchmark.	2015-03-01 01:22:38 -08:00
jdalton	c15d81545a	Update chalk in travis.	2015-03-01 01:22:38 -08:00
jdalton	1af8b9d16a	Cleanup docs of `_.flow`, `_.flowRight`, `_.defaults`, `_.range`, `_.inRange`, & `_.sum`. [ci skip]	2015-02-28 21:12:10 -08:00
jdalton	d860cf834d	Avoid testing the minified build on PRs in travis.	2015-02-28 19:18:38 -08:00
jdalton	63d5a3acbc	Optimize `baseIndexOf` more consistently.	2015-02-28 12:42:14 -08:00
jdalton	132aacee89	Optimize lazy evaluation for 1 param.	2015-02-28 10:11:26 -08:00
jdalton	973038da6a	Optimize `baseIndexOf`, `indexOfNaN`, and `baseFlatten`.	2015-02-27 21:43:30 -08:00
h7lin	584da3c39b	Fix doc example in `_.findLastIndex`. [ci skip]	2015-02-27 19:56:12 -08:00
Mohsen Azimi	73c4829255	Escape the backtick in `_.escape` docs. [ci skip]	2015-02-27 19:56:06 -08:00
jdalton	68942f7ec4	Move `_.max` & `_.min` to Math category & make `_.sum` work on collections.	2015-02-27 09:20:57 -08:00
jdalton	e914b83a1b	Add gitter badge to readme. [ci skip] [closes #983 ]	2015-02-27 08:26:09 -08:00
jdalton	2268376360	Update tested Firefox in saucelabs.js.	2015-02-26 19:41:22 -08:00
jdalton	6bb3b9a684	Disable lazy optimizations if the iteratee has more than one param. [closes #997 ]	2015-02-26 19:40:15 -08:00
jdalton	9f213c119c	Add more chaining tests.	2015-02-25 23:35:16 -08:00
jdalton	f081e2b799	Cleanup `_.sum` tests.	2015-02-25 23:03:01 -08:00
jdalton	a024152c12	Add `add` and `sum` to `lodash` doc notes. [ci skip]	2015-02-25 23:01:50 -08:00
jdalton	42d23dbc70	Simplify `_.sum`.	2015-02-25 23:01:32 -08:00
John-David Dalton	74786e8a25	Merge pull request #987 from thejameskyle/math Add math methods.	2015-02-25 19:00:06 -08:00
James Kyle	eeb4ede60d	Add _.add/_.sum methods	2015-02-25 10:37:42 -08:00
Juliano Castilho	f2eee8896c	Fix code example typo in `_.dropRightWhile`. [ci skip]	2015-02-25 00:19:53 -08:00
jdalton	bf4a70d91c	Bump to v3.3.1.	2015-02-23 23:49:50 -08:00
jdalton	a35ab3937a	Rebuild lodash and docs.	2015-02-23 23:49:40 -08:00
jdalton	5ef9a4be8a	Ensure `isIterateeCall` doesn't error if `index` is an object without a `toString` method. [closes #994 ]	2015-02-23 23:48:49 -08:00
jdalton	d76d7582fe	Simplify lazy filter, map, & takeWhile assignment.	2015-02-23 21:25:24 -08:00
jdalton	44006142c7	Ensure `wait` of `_.debounce` and `_.throttle` defaults to `0`. [closes #991 ]	2015-02-23 08:28:20 -08:00
jdalton	6840b2cfe5	Consistent use of `callCount` variable.	2015-02-23 08:28:20 -08:00
jdalton	5613f60403	Ensure lazy `takeWhile works with` reverse `and` last`. [closes #990 ]	2015-02-23 02:05:09 -08:00
jdalton	76d3959f1a	Use `square` in more places.	2015-02-23 01:26:07 -08:00
jdalton	b681759000	Remove unnecessary excused tests.	2015-02-23 00:35:24 -08:00
jdalton	d6336c4302	Fix code styling in `_.template` doc example. [ci skip]	2015-02-23 00:35:24 -08:00
jdalton	35b161450a	Update benchmark and underscore vendor files.	2015-02-23 00:35:24 -08:00
jdalton	861aaf06c6	Optimize `_.uniq` and others in Firefox.	2015-02-23 00:35:23 -08:00
jdalton	a910884e7d	Fix `_.indexOf` doc example typo. [closes #986 ] [ci skip]	2015-02-23 00:35:23 -08:00
Jarrett Meyer	0e7bef9014	Fixes missing single quotes in docs. [ci skip]	2015-02-23 00:35:23 -08:00