JSFiddle - React, Tailwind, and code Playground

by kougiland

HTML

<input id=email type='text' />

CSS

input{
   border:none 
   background:silver;
}

JavaScript

$('input#email').blur(function() {
    var testEmail = /^[A-Z0-9._%+-]+@([A-Z0-9-]+\.)+[A-Z]{2,4}$/i;
    if (testEmail.test(this.value)) alert('valid email adresse');
    else alert('invalid email adresse');
});