Question : JS Object Key Variable?

var tool = 'something'

stack = { tool : 'data'}

it always returns key as "tool" instead of the value of "tool" which is "something"

im trying to accomplish the following in JS but here is a PHP example
$tool = "something";
$stack[$tool] = data;

i know its not pretty.....

Answer : JS Object Key Variable?

use :

1: 2: 3: 4:

var stack = {}; var tool = 'something'; stack[tool] = 'data'; //alert(stack.something);