JSFiddle - React, Tailwind, and code Playground

by Alexandr Loginov

JavaScript

$('#js-start-form').submit(e=> {
		let $form = $(e.target),
			$input = $form.find('.validate');
		for (let i = $input.length - 1; i >= 0; i--) {
			let val = $($input[i]).val();
			if (val === '' || val.indexOf('@') === -1) {
				$input[i].focus();
				return false;
			} else {
				e.target.submit();
			}
		}
	});