setup-maven-cached/node_modules/underscore/amd/countBy.js
2022-06-28 10:39:30 +02:00

13 lines
372 B
JavaScript

define(['./_group', './_has'], function (_group, _has) {
// Counts instances of an object that group by a certain criterion. Pass
// either a string attribute to count by, or a function that returns the
// criterion.
var countBy = _group(function(result, value, key) {
if (_has(result, key)) result[key]++; else result[key] = 1;
});
return countBy;
});