| 1 | var redefine = require('../internals/redefine');
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| 2 |
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| 3 | var DatePrototype = Date.prototype;
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| 4 | var INVALID_DATE = 'Invalid Date';
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| 5 | var TO_STRING = 'toString';
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| 6 | var nativeDateToString = DatePrototype[TO_STRING];
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| 7 | var getTime = DatePrototype.getTime;
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| 8 |
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| 9 | // `Date.prototype.toString` method
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| 10 | // https://tc39.github.io/ecma262/#sec-date.prototype.tostring
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| 11 | if (new Date(NaN) + '' != INVALID_DATE) {
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| 12 | redefine(DatePrototype, TO_STRING, function toString() {
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| 13 | var value = getTime.call(this);
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| 14 | // eslint-disable-next-line no-self-compare
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| 15 | return value === value ? nativeDateToString.call(this) : INVALID_DATE;
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| 16 | });
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| 17 | }
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