Question

I have a string format like “firstname lastname(email)” and I want to validate the entered value according to this format using jQuery. Hows it is possible? I have tried many things but those are not working properly.

Answer 1

try this regular expression

DEMO

/^([a-zA-Z]+ )+([a-zA-Z])+([\(])+([0-9a-zA-Z]+([_.-]?[0-9a-zA-Z]+)*@[0-9a-zA-Z]+[0-9,a-z,A-Z,.,-]*(.){1}[a-zA-Z]{2,4})+(\))+$/

$.validator.addMethod("username_email",function(value,element){
   return this.optional(element) || /^([a-zA-Z]+ )+([a-zA-Z])+([\(])+([0-9a-zA-Z]+([_.-]?[0-9a-zA-Z]+)*@[0-9a-zA-Z]+[0-9,a-z,A-Z,.,-]*(.){1}[a-zA-Z]{2,4})+(\))+$/i.test(value); 
},"enter firstname lastname(email)");

Jquery Validation with Regular Expressions