2

Let's say that be have two variables

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

With the info above, is there a way to make paypay = "this is the value of paypay!"?

Julian Avar
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4 Answers4

2

You can put it in a dictionary:

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

Then obj.paypay is a variable which is now "this is the value of payday!".

ergonaut
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  • `window[variable]=value;` will also work without the need of an object. so you can use `paypay` without having `obj.`paypay – NewToJS Nov 04 '15 at 02:28
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var variable = "paypay";
var value = "this is the value of paypay!";

Some possibilities 

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!
Scott Stensland
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1

Assuming that you are properly scoped into a closure or otherwise... then you can cheat and kinda use the "this";

Example:

this[variable] = value;
console.log(variable);
Nick Sharp
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  • But in seriousness, I'd go with ergonaut's suggestion, and stuff it into an object, probably safer than playing with "this" if you're at your current Javascript comfort level. – Nick Sharp Nov 04 '15 at 02:14
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eval("var " + variable + "=" + value);

that is a solution even if using eval() function is not always recommended.

Damien DUPRAZ
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