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  • groupBy.js

  • ¶ 
    import group from './_group.js';
import has from './_has.js';
  • ¶

    Groups the object’s values by a criterion. Pass either a string attribute to group by, or a function that returns the criterion.

    export default group(function(result, value, key) {
  if (has(result, key)) result[key].push(value); else result[key] = [value];
});