jquery form validate not allow space for username field?

Question

I have used http://bassistance.de/jquery-plugins/jquery-plugin-validation/

my form validate :

$(\"#form_person\").validate({
    rules: {


        u         


        

Answer 1

$.validator.addMethod("validUsername", function (value, element) {
    return /^[a-zA-Z0-9_.-]+$/.test(value);
}, "Please enter a valid username");

Add this method in validation

$("form").validate({
   rules: {
      name: {
          validUsername: true
      }
   }
});