ss

jiangping

2025-07-10 056c73b0e86e76faa08b627c0cebfa244a7b399a

1
2
3
4
5
6
7
8
9
10
'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
});