JSFiddle - React, Tailwind, and code Playground

by basarat

HTML

<div></div>

JavaScript

function validateEmail(emailAddress) {
        var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
        return reg.test(emailAddress);
    }

alert(validateEmail("[email protected]"));