Rakefile @@ -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] = []; lib/collections.js b1a67c4f8188e14eb4d6c0d89fdc09910ec0c7fd Oliver Steele steele@osteele.com http://github.com/osteele/collections-js/commit/6b2d5b21406645a085bcd6f81f098aa17d7dfa1e 6b2d5b21406645a085bcd6f81f098aa17d7dfa1e 2008-04-20T18:26:00-07:00 2008-04-20T18:26:00-07:00 add thisObject to partitionBy d8bdb3c84d9f9242ef984c6571b5776d115385d4 Oliver Steele steele@osteele.com