Studying all day long)
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var hasOwn = require('../internals/has-own-property');
var defineBuiltIn = require('../internals/define-built-in');
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.es/ecma262/#sec-date.prototype-@@toprimitive
if (!hasOwn(DatePrototype, TO_PRIMITIVE)) {
defineBuiltIn(DatePrototype, TO_PRIMITIVE, dateToPrimitive);
}