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