Question

We can call variables by their names like this :

var name="a";
var a=4;
eval("alert("+name+")");//this will alert 4

But I heard that eval is not recommended. Is there a way to call variables by their names without eval ?

Answer 1

If the variables are global, you can do window[name], but otherwise, no you cannot that. “Variable variables” is a PHP thing.

If you want to do this, change your program, so that your variables are stored in an object.

var vars = {
    a: 4
};
var name = "a";

alert(vars[name]);