title: Pointers in JavaScript?
body: <p>Can we pass a reference of a variable that is immutable as argument in a function?</p>
  
  <p>Example:</p>
  
  <pre><code>var x = 0;
  function a(x)
  {
      x++;
  }
  a(x);
  alert(x); //Here I want to have 1 instead of 0
  </code></pre>