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Last change
on this file since b738035 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
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initial commit
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580 bytes
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| 1 | var $ = require('../internals/export');
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| 2 | var getCompositeKeyNode = require('../internals/composite-key');
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| 3 | var getBuiltIn = require('../internals/get-built-in');
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| 4 | var create = require('../internals/object-create');
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| 5 |
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| 6 | var initializer = function () {
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| 7 | var freeze = getBuiltIn('Object', 'freeze');
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| 8 | return freeze ? freeze(create(null)) : create(null);
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| 9 | };
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| 10 |
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| 11 | // https://github.com/tc39/proposal-richer-keys/tree/master/compositeKey
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| 12 | $({ global: true }, {
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| 13 | compositeKey: function compositeKey() {
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| 14 | return getCompositeKeyNode.apply(Object, arguments).get('object', initializer);
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| 15 | }
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| 16 | });
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