Magento 2 – Form Validation

A StackExchange post that contains most (all?) of the CSS classes that can control Magento 2’s form validation. Magento seems to apply the validation rules on all form submits – although I haven’t dug too deeply into that one so caveat emptor etc.

Also, a bonus for folks who read these Tumblr desciptions — here’s a quick bit of javascript that will take M1 style HTML and make all the fields required in an M2 context.

require(['jquery'], function($){
    $('.required-entry').each(function(key, element){
        $(element).attr('required','required');
    });        
});

Useful if you have a complex form built with a combination of raw HTML, PHP in phtml, and PHP in class files (i.e. – if you don’t want to track down and change ever class="require-entry" to required=required)