There is no difference from a rendering perspective. But if you are going to be looking in the future for these required elements, it helps to have a value to test for. Required This attribute specifies that the user must fill in a value before submitting a form. It cannot be used when the type attribute is hidden, image, or a button type (submit, reset, or button). The :optional and :required ...
Find out how to make a field required in HTML forms using the "required" attribute and ensure proper validation for user inputs.
How do I make a field required in HTML? - Stack Overflow
Explains how to use the "required" attribute in HTML forms for input validation, including examples and best practices.
As per the documentation (the listing and bold is mine) The required attribute is a boolean attribute. When specified, the user will be required to select a value before submitting the form. If a select element has a required attribute specified, does not have a multiple attribute specified, and has a display size of 1 (do not have SIZE=2 or more - omit it if not needed); and if the value of ...
Explora cómo solucionar problemas con el atributo "required" en formularios HTML5 y encuentra métodos alternativos para campos requeridos.
How can I use the HTML5 required attribute on this group of checkboxes? (Since only one of the checkboxes needs to be checked, I can't put the required attribute on each and every checkbox) ps. I am using simple_form, if that matters. UPDATE Could the HTML 5 multiple attribute be helpful here?