Pare雲代碼getHours（）更改所有變量

Question

我正在使用Parse Open Source的雲代碼編寫node.js函數。然而，出於某種原因，改變一個變量的小時數會改變其他變量？！

var beforeTime = item.get("date") 
var afterTime = item.get("date") 
console.log("before " + beforeTime.getHours()) 
console.log("after " + afterTime.getHours()) 
original.log("original " + item.get("date").getHours()) 

/* 
All off these print out the same (i.e. 15) 
*/ 

beforeTime.setHours(beforeTime.getHours() - request.params.hours) 

console.log("before " + beforeTime.getHours()) 
console.log("after " + afterTime.getHours()) 
original.log("original " + item.get("date").getHours()) 

/* 
All off these ALSO print out the same (i.e. 14) !!!??? 
*/ 

Answer 1

beforeTime和afterTime都設置爲同一對象的實例。

嘗試var afterTime = new Date(item.get("date").toString());