Use string as object name in Javascript

Question

Is it possible to access the property of a javascript object using a string?

example: I have a javascript object "obj" that contains a property 'index'.

obj.index = 4;

Now let's say I have a string whose value is the same as a property name of my object:

var str = "index";

Can I use the value of the str variable to access the 'index' property of 'obj'?

use the square bracket notation obj[str] – Quince Jan 26 '16 at 08:56 — Quince, Jan 26 '16 at 08:56

score 1 · Answer 1 · answered Jan 26 '16 at 08:55

1

Just use the following code:

obj[str]

answered Jan 26 '16 at 08:55

P. Jairaj

score 0 · Answer 2 · answered Jan 26 '16 at 08:56

0

You can use array Notation (squire bracket notation )

obj[str]

answered Jan 26 '16 at 08:56

Oxi

2 Answers2