Question

I have the following validation code wherein it filters only alpha numeric + white space text… But upon testing two alpha numeric words with whitespace, it fails…

$.validator.addMethod("alphaNumeric", function(value, element) {
    $(element).val(value.replace(/^\s+|\s+$/g,''));
    return /^[a-zA-Z0-9 ]*$/.test(value);
}, " AlphaNumeric Only!");

What is wrong with my code?

Answer 1

you change the input value but its not the value you are checking on your validation:

$.validator.addMethod("alphaNumeric", function(value, element) {
    value = value.replace(/^\s+|\s+$/g,'');
    $(element).val(value); //element.value = value
    return /^(?:(?:[a-zA-Z0-9]+ *)+)$/.test(value);
}, " AlphaNumeric Only!");

I don´t know of the replacement/trim method should be in a validation rule. But this should work.