Validators for HTML form fields.
Validators check if form fields have an acceptable value. They check both client side and server side if the input fields are valid. n
When an input field has been verified then it is available to Erlang programs via the function z_context:get_q_validated/2.
When a client side input field does not validate on the server side then the complete form submit is refused.
See also
listing of all Validators, and the validate scomp.