| var createNonEnumerableProperty = require('../internals/create-non-enumerable-property'); |
| var dateToPrimitive = require('../internals/date-to-primitive'); |
| var wellKnownSymbol = require('../internals/well-known-symbol'); |
| |
| var TO_PRIMITIVE = wellKnownSymbol('toPrimitive'); |
| var DatePrototype = Date.prototype; |
| |
| // `Date.prototype[@@toPrimitive]` method |
| // https://tc39.github.io/ecma262/#sec-date.prototype-@@toprimitive |
| if (!(TO_PRIMITIVE in DatePrototype)) { |
| createNonEnumerableProperty(DatePrototype, TO_PRIMITIVE, dateToPrimitive); |
| } |