JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" id="vat_id" />

JavaScript

jQuery(function($) {
    $('#vat_id').on('keydown', function(event) {
		var reg = /^[0-9A-Za-z\+\*\.]{1,10}$/;
		if(reg.test($('#vat_id').val()) === false) {
			return false;
		}
	});
});