addClassWhenEmail: Hide the Submit Button for Email Forms
Hate when users submit a form with an email address that just does not work? This little tool — addClassWhenEmail — solves that problem.
The tool works in a loop so that you can have multiple newsletter subscription forms on the page and each one will be served using this tool. If you need different configurations for each form, you can do that as well.
This tool can be installed in the form of a plugin or with the code. Both options are available in the documentation. The tool is also super-small and lightweight, so you won’t have to worry about it bogging down your website.