Javascript code for add two number

Question

1.00/5 (1 vote)

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Hi Everyone
I want to add add two number that are in two textbox and transfer its value in third textbox using javascript. i am implement this code but addition of thes two number not automatic display in third textbox. please can you tell me where am i worg. can you wright code.

XML

<script type="text/javascript">
//<![CDATA[
var total = (parseInt($('#<%= txtmaxmarks.ClientID %>').val()) + parseInt($('#<%= txtmarks.ClientID %>').val())) * parseInt($('#<%= txtper.ClientID %>').val()); ct100_BodyContent_txtTotalOrder.initialvalue = total;
//]]>
</script>

i am using this code
thanks in advance

Posted 6-Jan-12 23:10pm

ManavGuru

Updated 23-Dec-16 5:28am

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3 solutions

Solution 3

JavaScript Operators

x = 5, y = 2, calculate z = x + y, and display z:

var x = 5;
var y = 2;
var z = x + y;
document.getElementById("demo").innerHTML = z;

Posted 23-Dec-16 5:28am

Member 12919486

Comments

Richard MacCutchan 23-Dec-16 13:01pm

Why are you posting here? This question is nearly 5 years old.

Solution 4

function hi(){
var x=document.getElementById("f").value;
var y=document.getElementById("ff").value;
alert("x ="+x+"y ="+y);
var z=x+y;
alert("z = "+z);// here i getting the answer 56 if the value of x=5 and y=6
document.getElementById("fff").innerHTML=z;

}

Posted 26-Feb-18 18:09pm

Member 13698506

Comments

Richard Deeming 27-Feb-18 11:56am

Your inability to correctly copy the code from the accepted solution, which was posted SIX YEARS AGO, does not qualify as a new "solution".

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Sridhar Patnayak · Accepted Answer · 2012-01-06T23:15:00

Solution 1

Code for adding 2 numbers.

<html>
  <head>
        <title>Input tutorial</title>
        <script language="javascript">
                function addNumbers()
                {
                        var val1 = parseInt(document.getElementById("value1").value);
                        var val2 = parseInt(document.getElementById("value2").value);
                        var ansD = document.getElementById("answer");
                        ansD.value = val1 + val2;
                }
        </script>
  </head>
  <body>
        value1 = <input type="text" id="value1" name="value1" value="1"/>
        value2 = <input type="text" id="value2" name="value2" value="2"/>
        <input type="button" name="Sumbit" value="Click here" onclick="javascript:addNumbers()"/>
        Answer = <input type="text" id="answer" name="answer" value=""/>
  </body>
</html>

Thanks

Posted 6-Jan-12 23:15pm

Sridhar Patnayak

Comments

Amir Mahfoozi 7-Jan-12 5:46am

+5

Sridhar Patnayak 7-Jan-12 5:47am

Thanks Amir

Sergey Alexandrovich Kryukov 7-Jan-12 6:00am

All right, a 5.
--SA

Sridhar Patnayak 7-Jan-12 6:05am

Thanks SAKryukov

Member 8445148 7-Mar-14 6:29am

thank u for ur support

Pranav-BiTwiser 15-Mar-14 2:46am

what if i want to take asp.net controls instead of html??

Pranav-BiTwiser 15-Mar-14 2:55am

i want to show output on label...

Sridhar Patnayak 17-Mar-14 6:43am

Check this

protected void Button1_Click(object sender, EventArgs e)
{
int a = Convert.ToInt32(TextBox1.Text);
int b = Convert.ToInt32(TextBox2.Text);
c=a + b;
label1.Text = Convert.ToString(c);
}