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398 BJavaScriptView Raw
1'use strict';
2// TODO: remove from `core-js@4`
3var $ = require('../internals/export');
4var IS_PURE = require('../internals/is-pure');
5var $upsert = require('../internals/map-upsert');
6
7// `WeakMap.prototype.upsert` method (replaced by `WeakMap.prototype.emplace`)
8// https://github.com/tc39/proposal-upsert
9$({ target: 'WeakMap', proto: true, real: true, forced: IS_PURE }, {
10 upsert: $upsert
11});