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in groupBy, also pass index to iterator.

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Andrei
2011-05-05 14:43:28 -04:00
parent b75e48c057
commit 1681d25063
1 changed files with 2 additions and 2 deletions
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4
underscore.js
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@@ -254,8 +254,8 @@
// Groups the object's values by a criterion produced by an iterator // Groups the object's values by a criterion produced by an iterator
_.groupBy = function(obj, iterator) { _.groupBy = function(obj, iterator) {
var result = {}; var result = {};
each(obj, function(value) { each(obj, function(value, index) {
var key = iterator(value); var key = iterator(value, index);
(result[key] || (result[key] = [])).push(value) (result[key] || (result[key] = [])).push(value)
}); });
return result; return result;