Validate site/domain via javascript

Posted by Chez on Stack Overflow See other posts from Stack Overflow or by Chez
Published on 2010-04-21T11:16:22Z Indexed on 2010/05/07 16:48 UTC
Read the original article Hit count: 221

Filed under:

JavaScript

|

input-validation

|

validation

I have a standard html form where the user can specify a website/domain:

favourite website: [ ]

I expect the user to type things like:

[www.google.com] [www.yahoo.com] [www.example.co.jp]

I want to validate the domain/site via javascript so if a user had typed something wrong:

[www...google.com] [www.-example.com]

I tell them straight away.

Can anybody post this javascript ?

Alternatively can anybody point me to a site where I can look at their javascript ?

Many Thanks

© Stack Overflow or respective owner

Related posts about JavaScript

CHAT ROOMs 7 by 6

as seen on Stack Overflow - Search for 'Stack Overflow'
I am looking for chatroom on one page with 7 loggedin users and 6+rows for say 42 users.these users will keep on adding wthnew users.Need urgent help.A PRETTY UNUSUAL Q FOR MOST OF U.What is MORE REQ new features: Usernames are unique to users currently chatting You can see a "currently chatting"… >>> More
Integrating JavaScript Unit Tests with Visual Studio

as seen on Stephen Walter - Search for 'Stephen Walter'
Modern ASP.NET web applications take full advantage of client-side JavaScript to provide better interactivity and responsiveness. If you are building an ASP.NET application in the right way, you quickly end up with lots and lots of JavaScript code. When writing server code, you should be writing… >>> More
Has Javascript developed beyond what it was originally designed to do?

as seen on Programmers - Search for 'Programmers'
I've been talking with a friend about the purpose of Javascript, when and how it should be used, etc. He quoted that: JavaScript was designed to add interactivity to HTML pages [...] JavaScript gives HTML designers a programming tool HTML authors are normally not programmers… >>> More
PHP, javascript, single quote problems with IE when passing variable from ajax post to javascript fu

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi! I have been trying to get this to work for a while, and I suspect there's an easy solution that I just can't find. My head feels like jelly and I would really appreciate any help. My main page.php makes a .post() to backend.php and fetches a list of cities which it echoes in the form of: <li… >>> More
Javascript in XSL that is loaded by Javascript

as seen on Stack Overflow - Search for 'Stack Overflow'
Is there anyway to have javascript run when a XSL sheet has been applied to an XML file by Javascript? I am using a JQuery plugin to apply the sheet to the xml but the javascript that is located inside of the XSL file will not run. I put the Javascript at the bottom of the file and it still does… >>> More

Related posts about input-validation

Good input validation loop using cin - C++

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi there, I'm in my second OOP class, and my first class was taught in C#, so I'm new to C++ and currently I am practicing input validation using cin. So here's my question: Is this loop I constructed a pretty good way of validating input? Or is there a more common/accepted way of doing it? Thanks… >>> More
php form-input validation

as seen on Stack Overflow - Search for 'Stack Overflow'
i have a html page in which i enter data which then submits and inserts in a database on a php page. how would i validate in php that the data received is not a duplicate of the data in the database? any help appreciated. >>> More
Batch File input validation - Make sure user entered an integer

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm experimenting with a DOS batch file to perform a simple operation which requires the user to enter a non-negative integer. I'm using simple batch-file techniques to get user input: @ECHO OFF SET /P UserInput=Please Enter a Number: The user can enter any text they want here, so I would like… >>> More
ASP.NET 3.5 User Input Validation Basics

as seen on ASP Free - Search for 'ASP Free'
User input validation is an essential and a requirement for any web application deployed on the Internet. This is because on the Internet no can be sure that the user will enter the required inputs in the correct format type and values. This is especially true for a confused web application user… >>> More
jQuery AJAX Validation Using The Validity Plugin

as seen on ASP.net Weblogs - Search for 'ASP.net Weblogs'
Input validation is one of those areas that most developers view as a necessary evil. We know that it is necessary and we really do want to ensure that we get good input from our users. But most of us are lazy (me included) and input validation is one of those things that gets done but usually is… >>> More