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2 years ago
'use strict';
require('../../modules/es.map');
require('../../modules/esnext.map.group-by');
var call = require('../../internals/function-call');
var isCallable = require('../../internals/is-callable');
var path = require('../../internals/path');
var Map = path.Map;
var mapGroupBy = Map.groupBy;
module.exports = function groupBy(source, iterable, keyDerivative) {
return call(mapGroupBy, isCallable(this) ? this : Map, source, iterable, keyDerivative);
};