JSFiddle - React, Tailwind, and code Playground

by jfriend00

HTML

<input id="test"><button id="go">Check</button><br>
<div id="result"></div>

CSS

body {margin: 10px;}

JavaScript

var re = /^[a-zA-Z ]+$/;

$("#go").click(function() {
    var val = $("#test").val();
    var out = val.match(re) ? "passed" : "failed";
    $("#result").html(out);
});