Form validation is a crucial thing in web applications and making them sometimes requires hard work. Here’s a form validation script that is very easy to use. It has a number of tests built-in but is extensible to include your custom validation checks. Here’s the list of tests available to add to your field elements:
-
not blank – required -
a valid number -
digits only -
letters only -
only letters and numbers -
a valid date value -
a valid email address -
a valid URL -
a date formatted as; dd/mm/yyyy -
a valid dollar value -
first option e.g. ‘Select one…’ is not selected option -
At least one textbox/radio element must be selected in a group
Here is a demo of the field validation.
