'use strict'; | |
require('../../modules/es6.weak-set'); | |
require('../../modules/es7.weak-set.from'); | |
var $WeakSet = require('../../modules/_core').WeakSet; | |
var $from = $WeakSet.from; | |
module.exports = function from(source, mapFn, thisArg) { | |
return $from.call(typeof this === 'function' ? this : $WeakSet, source, mapFn, thisArg); | |
}; |