'use strict';
+require('../../modules/es.array.iterator');
require('../../modules/es.string.iterator');
require('../../modules/es.weak-map');
require('../../modules/esnext.weak-map.from');
require('../../modules/web.dom-collections.iterator');
+var call = require('../../internals/function-call');
+var isCallable = require('../../internals/is-callable');
var path = require('../../internals/path');
var WeakMap = path.WeakMap;
-var weakMapFrom = WeakMap.from;
+var $from = WeakMap.from;
module.exports = function from(source, mapFn, thisArg) {
- return weakMapFrom.call(typeof this === 'function' ? this : WeakMap, source, mapFn, thisArg);
+ return call($from, isCallable(this) ? this : WeakMap, source, mapFn, thisArg);
};