Question

Working example with global var:

var example_var = 'global var example';

var x = function(){
    var var_name = 'example_var';
    alert('Global var value is: ' + window[var_name]);
}

How can I do same thing with a local variable? Like this (not working example):

var x = function(){
    var example_var = 'Local var example';
    var var_name = 'example_var';
    alert('Local var value is: ' + window[var_name]);
}

Answer 1

You don’t want to use eval; a locally scoped object might be your best option:

var x = function(){
    var self = {};
    self.example_var = 'Local var example';

    var var_name = 'example_var';

    alert('Local var value is: ' + self[var_name]);
}