名的另一個變量

Question

字符串值之後變量假設可以有兩個變量

var variable = "paypay"; 
var value = "this is the value of paypay!"; 

通過上面的信息，有沒有一種方法，使paypay = "this is the value of paypay!"？

Answer 1

你可以把它在字典：

var obj = {}; 
obj[variable] = value; 

然後obj.paypay是一個變量，它現在是"this is the value of payday!"。

Answer 2

var variable = "paypay"; 
var value = "this is the value of paypay!"; 

一些可能性

var parent = {}; 

parent.variable = value; // this is the value of paypay! 
parent[variable] = value; // this is the value of paypay! 
parent["paypay"] = value; // this is the value of paypay! 
parent.paypay = value; // this is the value of paypay! 
var "paypay"  = value; // error Unexpected string 
var paypay  = value; // this is the value of paypay! 

Answer 3

假設你正確作用域爲關閉或以其他方式...那麼你就可以欺騙和還挺使用「本」;

實施例：

this[variable] = value; 
console.log(variable); 

Answer 4

eval("var " + variable + "=" + value); 

即即使使用eval（）函數並不總是建議的解決方案。