| 1 | var createNonEnumerableProperty = require('../internals/create-non-enumerable-property');
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| 2 | var dateToPrimitive = require('../internals/date-to-primitive');
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| 3 | var wellKnownSymbol = require('../internals/well-known-symbol');
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| 4 |
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| 5 | var TO_PRIMITIVE = wellKnownSymbol('toPrimitive');
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| 6 | var DatePrototype = Date.prototype;
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| 7 |
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| 8 | // `Date.prototype[@@toPrimitive]` method
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| 9 | // https://tc39.es/ecma262/#sec-date.prototype-@@toprimitive
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| 10 | if (!(TO_PRIMITIVE in DatePrototype)) {
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| 11 | createNonEnumerableProperty(DatePrototype, TO_PRIMITIVE, dateToPrimitive);
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| 12 | }
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