Simple addition in javascript

by krish

HTML

<html>
<body>
    
    value of a: <input type="text" id="val_a"/>
    value of b: <input type="text" id="val_b"/>
    <input type="button" id="addbutton" value="Add">
    
    
    </body>
</html>

JavaScript

$('#addbutton').click(function(){

var a=$('#val_a').val();
  var a=parseInt(a); 
var b=$('#val_b').val();
   var b=parseInt(b);
var c=a+b;
alert('The addition value is'+c);
});