Name of a variable as string, how to get value?

Question

A javascript newbie question:

Let's say, there is a variable defined as follows:

var var1 = "Something"

On the other hand, I generate such strings (simplified):

var nmbr = "1"
var varname = "var" + nmbr

Now I have to get the value of a variable with such a name (varname as string).

document.write([???varname???])

should write 'Something'.

How to do this?

you can get it from the current scope, i.e. `this[varname]` or `window[varname]` — Panama Prophet, Jan 15 '17 at 20:25
@PanamaProphet— *this* is not the "current scope", it may not even be an object. You can't reference execution records (i.e. the "current scope"), it's not allowed by the specification. — RobG, Jan 15 '17 at 20:28
@Panama Prophet -- Thank you!!! `this[varname]` works fine for me! — newbieforever, Jan 15 '17 at 21:26
@RobG yes, thanks for correction, you are right. what i mean was a context, not scope — Panama Prophet, Jan 15 '17 at 21:57

score 0 · Answer 1 · edited Jan 15 '17 at 20:33

0

console.log(variable_name);

will print the variable in the console.

edited Jan 15 '17 at 20:33

Ouroborus

answered Jan 15 '17 at 20:26

Kostas Bastas

1 Answers1