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Last change
on this file since ceaed42 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
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initial commit
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Property mode
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100644
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File size:
616 bytes
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| 1 | var has = require('../internals/has');
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| 2 | var ownKeys = require('../internals/own-keys');
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| 3 | var getOwnPropertyDescriptorModule = require('../internals/object-get-own-property-descriptor');
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| 4 | var definePropertyModule = require('../internals/object-define-property');
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| 5 |
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| 6 | module.exports = function (target, source) {
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| 7 | var keys = ownKeys(source);
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| 8 | var defineProperty = definePropertyModule.f;
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| 9 | var getOwnPropertyDescriptor = getOwnPropertyDescriptorModule.f;
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| 10 | for (var i = 0; i < keys.length; i++) {
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| 11 | var key = keys[i];
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| 12 | if (!has(target, key)) defineProperty(target, key, getOwnPropertyDescriptor(source, key));
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| 13 | }
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| 14 | };
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