From 850d55ab45aaf354c416525e09036d1fda16079d Mon Sep 17 00:00:00 2001
From: John-David Dalton <john.david.dalton@gmail.com>
Date: Sat, 20 Oct 2012 19:10:56 -0700
Subject: [PATCH] Rework `_.intersection`.

Former-commit-id: b05442888b15b448f6594b46b5cf1a2a06611da2
---
 build.js                 | 12 +++++---
 lodash.js                | 10 +++---
 lodash.min.js            | 66 ++++++++++++++++++++--------------------
 lodash.underscore.min.js | 54 ++++++++++++++++----------------
 4 files changed, 73 insertions(+), 69 deletions(-)

diff --git a/build.js b/build.js
index 93ff82840..bedc29b8e 100755
--- a/build.js
+++ b/build.js
@@ -1092,20 +1092,22 @@
         // replace `_.intersection`
         source = source.replace(/^( +)function intersection[\s\S]+?\n\1}/m, [
           '  function intersection(array) {',
-          '    var args = argument,',
-          '        argsLength = args.length;',
+          '    var args = arguments,',
+          '        argsLength = args.length,',
+          '        result = [];',
           '',
-          '    return filter(array, function(value) {',
+          '    forEach(array, function(value) {',
           '      if (indexOf(result, value) < 0) {',
           '        var length = argsLength;',
           '        while (--length) {',
           '          if (indexOf(args[length], value) < 0) {',
-          '            return false;',
+          '            return;',
           '          }',
           '        }',
-          '        return true;',
+          '        result.push(value);',
           '      }',
           '    });',
+          '    return result;',
           '  }'
         ].join('\n'));
 
diff --git a/lodash.js b/lodash.js
index a3decef0a..0c202f364 100644
--- a/lodash.js
+++ b/lodash.js
@@ -2702,19 +2702,21 @@
   function intersection(array) {
     var args = arguments,
         argsLength = args.length,
-        cache = [];
+        cache = [],
+        result = [];
 
-    return filter(array, function(value) {
+    forEach(array, function(value) {
       if (indexOf(result, value) < 0) {
         var length = argsLength;
         while (--length) {
           if (!(cache[length] || (cache[length] = cachedContains(args[length])))(value)) {
-            return false;
+            return;
           }
         }
-        return true;
+        result.push(value);
       }
     });
+    return result;
   }
 
   /**
diff --git a/lodash.min.js b/lodash.min.js
index e5fa8e334..238caca57 100644
--- a/lodash.min.js
+++ b/lodash.min.js
@@ -2,38 +2,38 @@
  Lo-Dash 0.8.2 lodash.com/license
  Underscore.js 1.4.2 underscorejs.org/LICENSE
 */
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