How to put variable value inside another variable name in Javascript

Question

I have a javascript variable

var varNameValue = "Name";

Now i want to create another variable using the value of varNameValue inside the name of the Other

var x(varNameValue)y = "abc";

So that my new variable name becomes

var xNamey = "abc";

Is there any way to do it. Please help.

score 2 · Accepted Answer · answered Dec 03 '14 at 10:35

2

Not directly in JavaScript. If you know the content in which it is run, then you can. For example, if this is in a browser, and it is in the global context (which maps to window), then you could do

window["x"+varNameValue+"y"] = "abc";

Similarly if it is on an object

var obj = {};
obj["x"+varNameValue+"y"] = "abc";

But just as a standalone var without any context? Nah.

answered Dec 03 '14 at 10:35

deitch

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this edit is so much better than the former answer. – ffflabs Dec 03 '14 at 10:37
also, this["x"+varNameValue+"y"] = "abc"; can be used. – Sampath Liyanage Dec 03 '14 at 10:40
Definitely... if `this` is correct, which is always a challenge. The bigger question is, why would you want to set the name of a `var` variably? In an object, yes, I get it; but just out there? – deitch Dec 03 '14 at 10:44

score 1 · Answer 2 · answered Dec 03 '14 at 10:37

1

var varNameValue = "Name";
eval("var x" + varNameValue + "y = 'abc';")
alert(xNamey);

answered Dec 03 '14 at 10:37

Vipul Hadiya

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score 1 · Answer 3 · answered Dec 03 '14 at 10:41

1

Try

var obj={}

var nameValue="Name";

obj["x"+ nameValue +"y"]= "abc"

Then you can access it using obj.xNamey

answered Dec 03 '14 at 10:41

KaustubhSV

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How to put variable value inside another variable name in Javascript

3 Answers3