title: How to get local variable by its name in JS?
body: <p>Working example with global var:</p>
  
  <pre>
  var example_var = 'global var example';
  
  var x = function(){
      var var_name = 'example_var';
      alert('Global var value is: ' + window[var_name]);
  }
  </pre>
  
  <p>How can I do same thing with a local variable? Like this (not working example):</p>
  
  <pre>
  var x = function(){
      var example_var = 'Local var example';
      var var_name = 'example_var';
      alert('Local var value is: ' + window[var_name]);
  }
  </pre>