Jquery variables variable

Question

There exist some concept like variables variable to print variable names or call functions dynamically:

Thanks in advance.

Jquery isn't a language, it's a library. Javascript (EcmaScript) is the language. — Topera
– Topera, Commented Sep 16, 2010 at 2:05
This question is similar to: Is there a JavaScript equivalent of PHP’s “variable variables”?. If you believe it’s different, please edit the question, make it clear how it’s different and/or how the answers on that question are not helpful for your problem. — dumbass
– dumbass, Commented Oct 10, 2024 at 10:06

Nick Craver · Accepted Answer · 2010-09-16 02:06:53Z

7

The closest JavaScript equivalent is bracket notation, for example:

var obj = { myMethod: function() { alert("Hello!"); } };
var func = "myMethod";
obj[func](); //equal to obj.myMethod();

You can test it out here, in JavaScript calling these two is equivalent:

object.property
object["property"];

And the latter allows you to use a variable, to get any property or method you want.

To be clear this is a JavaScript behavior, there's nothing specific to jQuery about it.

answered Sep 16, 2010 at 2:06

Nick Craver

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Comments

Topera · Accepted Answer · 2010-09-16 02:09:57Z

6

In javascript you can use a similar aproach.

$a = "hello";
$['hello'] = 'world';
$[$a];
alert($a + " " + $[$a]); // alerts "hello world"

answered Sep 16, 2010 at 2:09

Topera

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