jQuery validator - Cannot call method 'call' of undefined error - while adding validation dynamically

Question

This is my code to update the jQuery validation dynamically. In document load i create the validation. This code is used to update the phone number validation dynamically. A

Answer 1

As a related bug, if you add a custom rule, using:

$.validator.addMethod('field-is-valid', function (val, element) { ...})

but then reference it in your rules declaration with the wrong name:

$(element).rules('add', {
    "field-valid": true
})

you'll get the same Cannot call method call of undefined.