add thisObject to partitionBy

osteele · Apr 21, 2008 · 6b2d5b2 · 6b2d5b2
1 parent b1a67c4
commit 6b2d5b2
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Showing 2 changed files with 8 additions and 2 deletions.
diff --git a/Rakefile b/Rakefile
@@ -0,0 +1,6 @@
+require 'rake/rdoctask'
+
+Rake::RDocTask.new do |rd|
+  rd.main = "README"
+  rd.rdoc_files.include("README", "CHANGES")
+end
diff --git a/lib/collections.js b/lib/collections.js
@@ -205,11 +205,11 @@ define(Array, 'last', function() {
   * return value is a hash, where the keys are the values returned by
   * `fn` and the values are lists of elements with those keys.
   */
-define(Array, 'partitionBy', function(fn) {
+define(Array, 'partitionBy', function(fn, thisObject) {
     var partitions = {};
     for (var i = 0, len = this.length; i < len; i++) {
         var item = this[i],
-            key = fn(item, i),
+            key = fn.call(thisObject, item, i),
             partition = partitions[key];
         if (!partition)
             partition = partitions[key] = [];