how to validate number in javascript

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Hi,
I have text box which will not allow a number starting with "0" in first and second positions number length is 3.

for example
if 01 entered it should give alert.
if 001 entered also it should give alert.

Thanks in advance.

Posted 16-Mar-14 20:12pm

Member 10667008

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Ehsan Skardu · Answer 1 · 2014-03-16T20:21:00

Solution 1

Hi
You can do by this,

JavaScript

function IsNumeric(data)
{
if (data === parseInt(data))
            alert("data is integer")
        else
            alert("data is not an integer")
}

Posted 16-Mar-14 20:21pm

Ehsan Skardu

Updated 16-Mar-14 20:58pm

v2

Comments

Member 10667008 17-Mar-14 2:44am

Thanks for your reply.

Krunal Rohit 17-Mar-14 2:45am

What is it, anyway ??

-KR

Krunal Rohit · Answer 2 · 2014-03-16T20:21:00

Solution 2

Looks like Homework. So I'm gonna give you one in return ;)

Read this first : Learn Regular Expressions (RegEx) with Ease[^]

-KR

Posted 16-Mar-14 20:21pm

Krunal Rohit

Comments

Member 10667008 17-Mar-14 2:44am

Thank you very much.
I think this link will help JavaScript beginners like me.

NvsYazilim 17-Mar-14 12:22pm

Nice one :)

Krunal Rohit 17-Mar-14 13:24pm

Thanks :)

-KR