Dynamic variables in JavaScript

Question

Can I attach this value to a TextField?

var data = "testVariable";
eval("var temp_" + data + "=123;");
alert(temp_testVariable);

Why not use the slightly more acceptable window['temp_' + data] = '123';? — josh.trow
– josh.trow, Commented Jun 14, 2011 at 12:42
@josh.trow I'd say that that's a lot more than "slightly" more acceptable :-) — Pointy
– Pointy, Commented Jun 14, 2011 at 13:01

Quentin · Accepted Answer · 2011-06-14 12:39:19Z

6

What is the use of Dyanmic variables? Any Scenarious

For when people haven't heard of objects or arrays.

Can i attach this value to a TextField?

Yes.

answered Jun 14, 2011 at 12:39

Quentin

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Comments

Community · Accepted Answer · 2017-05-23 11:52:27Z

6

The answer to 2) is 'yes you can'.

However for 1), and overall, you probably shouldn't be using eval: Why is using the JavaScript eval function a bad idea?

As another comment and the currently upvoted answer says - either use arrays or a map.

CommunityBot

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answered Jun 14, 2011 at 12:41

Andras Zoltan

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