Passing a variable inside a variable in javascript

Question

I am trying to create a variable that will include another variable.

Example:
var options_id = ...

where 'id' is created dynamically through another variable so that the result could be

var options_1 = ...
var options_2 = ...
etc.

The 'id' is declared dynamically like this:

var id = itemid;

What would be the syntax to include the 'id' variable in the variable

var options_id

?

• Kundan Singh Chouhan: You can't specify the name of variable dynamically on declaration instead of this you can crate an array and push the variable value into it.
• MimiEAM: why not use an array of options ?
• Kundan Singh Chouhan: @MimiEAM, we are on same boat :)

Answer 1

Have you thought about using an object instead? You could do:

var id = itemid;
var options = {};
options['id'] = ...;

Then access it using:

options.id

Answer 2

I suppose this is what your looking for:

window['options_' + id] = ...

Answer 3

I think, that there is an Object in JS for that purpose.

For example:

var options = new Object();
var options.id = 'foo';

or if you want to use numeric indices then you can resort to Array