From 425b976cc0fb0e3f3e8aeeaa09439e3fe67416b8 Mon Sep 17 00:00:00 2001
From: John-David Dalton <john.david.dalton@gmail.com>
Date: Fri, 19 Oct 2012 00:53:48 -0700
Subject: [PATCH] Remove compiling from `_.every`, `_.filter`, and `_.some` and
 add related benchmarks.

Former-commit-id: 545195dc7085c1294ad8709f44fddb0c3c6a0545
---
 build.js                 |  6 ++--
 lodash.js                | 44 ++++++++++++++++----------
 lodash.min.js            | 68 ++++++++++++++++++++--------------------
 lodash.underscore.min.js | 55 ++++++++++++++++----------------
 perf/perf.js             | 60 +++++++++++++++++++++++++++++++++++
 5 files changed, 151 insertions(+), 82 deletions(-)

diff --git a/build.js b/build.js
index 57474361d..54ac0feaf 100755
--- a/build.js
+++ b/build.js
@@ -78,9 +78,9 @@
     'delay': [],
     'difference': ['indexOf'],
     'escape': [],
-    'every': ['identity'],
+    'every': ['forEach'],
     'extend': ['isArguments'],
-    'filter': ['identity'],
+    'filter': ['forEach'],
     'find': ['some'],
     'first': [],
     'flatten': ['isArray'],
@@ -140,7 +140,7 @@
     'result': ['isFunction'],
     'shuffle': ['forEach'],
     'size': ['keys'],
-    'some': ['identity'],
+    'some': ['forEach'],
     'sortBy': ['forEach'],
     'sortedIndex': ['identity'],
     'tap': ['mixin'],
diff --git a/lodash.js b/lodash.js
index 0848dd05c..715d84ef4 100644
--- a/lodash.js
+++ b/lodash.js
@@ -419,8 +419,7 @@
   );
 
   /**
-   * Reusable iterator options shared by `every`, `filter`, forEach`, `forIn`,
-   * `forOwn`, `map`, and `some`.
+   * Reusable iterator options shared by `forEach`, `forIn`,`forOwn`, and `map`.
    */
   var forEachIteratorOptions = {
     'args': 'collection, callback, thisArg',
@@ -428,12 +427,6 @@
     'inLoop': 'if (callback(value, index, collection) === false) return result'
   };
 
-  /** Reusable iterator options for `every` and `some` */
-  var everyIteratorOptions = {
-    'init': 'true',
-    'inLoop': 'if (!callback(value, index, collection)) return !result'
-  };
-
   /** Reusable iterator options for `bindAll`, `defaults`, and `extend` */
   var extendIteratorOptions = {
     'useHas': false,
@@ -1926,7 +1919,14 @@
    * _.every([true, 1, null, 'yes'], Boolean);
    * // => false
    */
-  var every = createIterator(forEachIteratorOptions, everyIteratorOptions);
+  function every(collection, callback, thisArg) {
+    var result = true;
+    callback = createCallback(callback, thisArg);
+    forEach(collection, function(value, index, collection) {
+      return (result = callback(value, index, collection));
+    });
+    return !!result;
+  }
 
   /**
    * Examines each element in a `collection`, returning an array of all elements
@@ -1946,10 +1946,16 @@
    * var evens = _.filter([1, 2, 3, 4, 5, 6], function(num) { return num % 2 == 0; });
    * // => [2, 4, 6]
    */
-  var filter = createIterator(forEachIteratorOptions, {
-    'init': '[]',
-    'inLoop': 'callback(value, index, collection) && result.push(value)'
-  });
+  function filter(collection, callback, thisArg) {
+    var result = [];
+    callback = createCallback(callback, thisArg);
+    forEach(collection, function(value, index, collection) {
+      if (callback(value, index, collection)) {
+        result.push(value);
+      }
+    });
+    return result;
+  }
 
   /**
    * Examines each element in a `collection`, returning the first one the `callback`
@@ -2391,10 +2397,14 @@
    * _.some([null, 0, 'yes', false]);
    * // => true
    */
-  var some = createIterator(forEachIteratorOptions, everyIteratorOptions, {
-    'init': 'false',
-    'inLoop': everyIteratorOptions.inLoop.replace('!', '')
-  });
+  function some(collection, callback, thisArg) {
+    var result;
+    callback = createCallback(callback, thisArg);
+    forEach(collection, function(value, index, collection) {
+      return !(result = callback(value, index, collection));
+    });
+    return !!result;
+  }
 
   /**
    * Creates an array, stable sorted in ascending order by the results of
diff --git a/lodash.min.js b/lodash.min.js
index c640b86c8..57d88e9b4 100644
--- a/lodash.min.js
+++ b/lodash.min.js
@@ -2,39 +2,39 @@
  Lo-Dash 0.8.2 lodash.com/license
  Underscore.js 1.4.2 underscorejs.org/LICENSE
 */
-;(function(e,t){function s(e){if(e&&e.__wrapped__)return e;if(!(this instanceof s))return new s(e);this.__wrapped__=e}function o(e,t,n){t||(t=0);var r=e.length,i=r-t>=(n||W),s=i?{}:e;if(i)for(n=t-1;++n<r;){var o=e[n]+"";(at.call(s,o)?s[o]:s[o]=[]).push(e[n])}return function(e){if(i){var n=e+"";return at.call(s,n)&&-1<D(s[n],e)}return-1<D(s,e,t)}}function u(e,n){var r=e.b,i=n.b,e=e.a,n=n.a;if(e!==n){if(e>n||e===t)return 1;if(e<n||n===t)return-1}return r<i?-1:1}function a(e,t,n){function r(){var u=arguments
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diff --git a/perf/perf.js b/perf/perf.js
index 7085114d6..53d7bd7ba 100644
--- a/perf/perf.js
+++ b/perf/perf.js
@@ -693,6 +693,36 @@
 
   /*--------------------------------------------------------------------------*/
 
+  suites.push(
+    Benchmark.Suite('`_.every` iterating an array')
+      .add(buildName, '\
+        lodash.every(numbers, function(num) {\
+          return num + "";\
+        })'
+      )
+      .add(otherName, '\
+        _.every(numbers, function(num) {\
+          return num + "";\
+        })'
+      )
+  );
+
+  suites.push(
+    Benchmark.Suite('`_.every` iterating an object')
+      .add(buildName, '\
+        lodash.every(object, function(num) {\
+          return num + "";\
+        })'
+      )
+      .add(otherName, '\
+        _.every(object, function(num) {\
+          return num + "";\
+        })'
+      )
+  );
+
+  /*--------------------------------------------------------------------------*/
+
   suites.push(
     Benchmark.Suite('`_.filter` iterating an array')
       .add(buildName, '\
@@ -1331,6 +1361,36 @@
 
   /*--------------------------------------------------------------------------*/
 
+  suites.push(
+    Benchmark.Suite('`_.some` iterating an array')
+      .add(buildName, '\
+        lodash.some(numbers, function(num) {\
+          return num == 19;\
+        })'
+      )
+      .add(otherName, '\
+        _.some(numbers, function(num) {\
+          return num == 19;\
+        })'
+      )
+  );
+
+  suites.push(
+    Benchmark.Suite('`_.some` iterating an object')
+      .add(buildName, '\
+        lodash.some(object, function(num) {\
+          return num == 19;\
+        })'
+      )
+      .add(otherName, '\
+        _.some(object, function(num) {\
+          return num == 19;\
+        })'
+      )
+  );
+
+  /*--------------------------------------------------------------------------*/
+
   suites.push(
     Benchmark.Suite('`_.sortBy` with `callback`')
       .add(buildName, '\