代码初始化

jiangping

2025-04-22 55b98737d5c4240b8035914a15e6975a9a71b447

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'use strict';
// TODO: remove from `core-js@4`
var $ = require('../internals/export');
var upsert = require('../internals/map-upsert');
 
// `WeakMap.prototype.upsert` method (replaced by `WeakMap.prototype.emplace`)
// https://github.com/tc39/proposal-upsert
$({ target: 'WeakMap', proto: true, real: true, forced: true }, {
  upsert: upsert
});