Question

I am creating a signup form in my website. I want to implement some checkup with username, which are

• username can’t have any space,
• username can’t have any special characters other than dot (.) as gmail is doing in thier signup form.

I am using jQUERY in my app, can anyone tell me how to implement above listed two checkups using jquery ?? I remember these two main checkups for username please suggest if you knows any other?

Thanks

Answer 1

I tried out following jquery script by studying the links (this one) given by @Dror to check for wrong characters in username,

if (!$('#uname').val().match("^[a-z0-9'.\s]{1,50}$")) {
    //not a correct username
}

Thanks