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

10 lines
340 B
JavaScript

import group from './_group.js';
import has from './_has.js';
// 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.
export default group(function(result, value, key) {
if (has(result, key)) result[key]++; else result[key] = 1;
});