Variable Variable in JS

Question

I need to create a variable variable name in JS...

obj = {};
obj.fooonex = {};
obj.fooonex.start = 1;
obj.fooonex.end = 2;

a = "foo";
b = "one";
c = "x";

test = a + b + c;

alert(obj.test.start);

I want the result to be "1"

fiddle here: http://jsfiddle.net/mR6BH/

Answer 1

You need to do:

alert(obj[test].start);