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我有一種情況,當我設置過期日期對象。在改變'過期'後,'object.created'在不應該改變時改變。爲什麼'object.created'被改變?謝謝!Javascript:更改日期對象
let expire = object.created; // object.created: Wed Mar 02 2016
expire.setDate(12);
console.log(expire); // Wed Mar 12 2016
console.log(object.created); //Wed Mar 12 2016 <-- WHY?!