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| 'use strict';
| require('../../modules/es.map');
| require('../../modules/esnext.map.key-by');
| var call = require('../../internals/function-call');
| var isCallable = require('../../internals/is-callable');
| var path = require('../../internals/path');
|
| var Map = path.Map;
| var mapKeyBy = Map.keyBy;
|
| module.exports = function keyBy(source, iterable, keyDerivative) {
| return call(mapKeyBy, isCallable(this) ? this : Map, source, iterable, keyDerivative);
| };
|
|
