es.date.to-primitive.js 547 B

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