rk
3 天以前 5e671e7b8ee27f043baa6a84fe5893d6c0d686b9
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'use strict';
var $ = require('../internals/export');
var WeakMapHelpers = require('../internals/weak-map-helpers');
var createCollectionFrom = require('../internals/collection-from');
 
// `WeakMap.from` method
// https://tc39.github.io/proposal-setmap-offrom/#sec-weakmap.from
$({ target: 'WeakMap', stat: true, forced: true }, {
  from: createCollectionFrom(WeakMapHelpers.WeakMap, WeakMapHelpers.set, true)
});