How can we add data in java script, See below

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I want to add two textbox value (10,20) but it concatenate the data(1020) rather than add data(30). See code below

function add() {
           var a = document.getElementById("TextBox1").value;
           var b = document.getElementById("TextBox2").value;
           var c = (a+b);
           document.getElementById("TextBox3").value = c;

       }

<input id="Button1" type="button" value="+" onclick="add()" /></td>

So guys help me how can i add data

Posted 6-Jul-12 0:36am

Mas11

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2 solutions

Solution 2

here you are adding two vars that will concatenate two vars.
addintion is apply to Integer values so you need to convert your a and b into int and then store it into var c then display c.

best of luck.

Posted 6-Jul-12 0:51am

Raje_

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Mas11 6-Jul-12 7:10am

Thanks !! nice answer

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Raja Soosai · Accepted Answer · 2012-07-06T00:43:00

Solution 1

Hi,

use like this,

JavaScript

var c = (parseInt(a)+parseInt(b));

Thanks,
Raja S

Posted 6-Jul-12 0:43am

Raja Soosai

Updated 6-Jul-12 0:45am

v2

Comments

Mas11 6-Jul-12 6:48am

Thanks a lot bro.. It worked