Number Validation Script

This javascript will help you to validate the textbox in a form. This java script function helps you to check whether the given value in the textbox is number or integer value.

Features

You can validate the textbox with an integer value.
You can validate form using this javascript.
Just copy the given free javascript code and use it.

Preview

Enter value:

Downloads

Javascript Code

/* Created on : Dec 1,2007 Javascript for validating a rounded integer value.
This script validates the given input and returns true or false.
You have to just call the function with the input as argument.
Eg:var d = isInteger(3); returns true;var e = isInteger(4.4); returns false;*/
<script type="text/javascript">
function isInteger(s)
{
var i;s = s.toString();
for (i = 0; i < s.length; i++)
{
var c = s.charAt(i);
if (isNaN(c))
{
alert("Given value is not a number");return false;
}
}return true;}</script>

HTML Code

<form name=test>
<input type=text name=en onKeyup="isInteger(this.value)">
<input type=button name=cc value="Check" >
</form>

Release Date - 01-12-2007
Get free version without ©copyright link for just $10/-
For customization of this script or any script development, mail to support@hscripts.com

Usage

Here we have explained with a form

Creating a form by copying the html code to the

 <body> tag

<form name=test>
<input type=text name=en onKeyup="isInteger(this.value)">
<input type=button name=cc value="Check">
</form>

Copy the javascript code into the
```
 <head> tag 
```
of your page.
If user enters value in the textbox, the function "isInteger(this.value)" is called to check whether the entered value is number. If given value is number, textbox will accept it orelse an alert message will appear.