Adding Numbers in JavaScript

It is not that simple to add numbers in javascript. When we have two textboxes and enter two numbers and try to add we get the numbers merged like strings not added.

<input type="text" id="textBox1"/><br/>
<input type="text" id="textBox2"/><br/>
<input type="button" value="ADD" id="addNumbers"/>

var tempVariable ='';
$("#addNumbers").click(function(){
var a = $("#textBox1").val();
    var b = $("#textBox2").val();
    tempVariable = parseInt(a)+parseInt(b);
alert(tempVariable);
});

For the demo you can check the fiddle below:

http://jsfiddle.net/SurajMindfire/t8kzo7k0/

Here the parseInt does the trick, try now adding without parseInt then see the difference.

This will be of sure help I hope.

Thanks