Question

I’m using jQuery’s validation plugin to validate form text fields.
I’m trying to validate a price field by only allowing currency symbols, letters and numbers but no other special characters.

I have tried this but it’s allowing other special characters such as ; ” :

^[a-zA-Z 0-9 € £]+$

What am I doing wrong?
Thanks!

EDIT:

Code in document.ready function:

 jQuery.validator.addMethod("acceptPrice", function(value, element, param) {
            return value.match(new RegExp(param + "$"));
         });

    $("#editForm").validate({
          onkeyup: false,
    rules: {


        priceField: { acceptPrice: "^[a-zA-Z0-9€£]+$" },


        }

Answer 1

You should use regex pattern ^[a-zA-Z0-9€£]+$

Even your wrong pattern does not allow characters such as ;, " or :. You must have some error in your code, not just in regex pattern.

UPDATE [1]

If you want to allow also space character, then use regex pattern ^[ a-zA-Z0-9€£]+$

UPDATE [2]

If you want to allow also decimal numbers, you need to allow dot as well: ^[. a-zA-Z0-9€£]+$

UPDATE [3]

JavaScript Form Validation

<form name="myForm" action="form.php" onsubmit="return validateForm()" method="post">

…with script:

function validateForm()
{
  // if error return false;
  // if okay  return true;
}