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- define(['./_has', './_group'], function (_has, _group) {
-
- // Groups the object's values by a criterion. Pass either a string attribute
- // to group by, or a function that returns the criterion.
- var groupBy = _group(function(result, value, key) {
- if (_has(result, key)) result[key].push(value); else result[key] = [value];
- });
-
- return groupBy;
-
- });
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