3.30

linwenling

2023-03-30 0498034d98a44e2de9ae3f68aba75e3903f687a6

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