title: How to get numeric value from a prompt box?
body: <p>I was trying to do some simple mathematical calculations in HTML and jQuery and JavaScript, so I wanted to get input from user.<br>
  For input I tried doing this :</p>
  
  <pre><code> var x = prompt("Enter a Value","0");
   var y = prompt("Enter a Value", "0");
  </code></pre>
  
  <p>But I am not able to perform any kind of calculations as these values are strings.<br>
  Please, can any one show me how to convert them into integers.     </p>