JSFiddle - React, Tailwind, and code Playground

by Roman Fedytskyi

HTML

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

<div class="validation"></div>

JavaScript

$(function() {

    $("#field").bind("keyup", function(event) {
        var regex = /^[a-zA-Z\s]+$/;
        if (regex.test($("#field").val())) {
            $('.validation').html('valid');
        } else {
            $('.validation').html("FAIL regex");
        }
    });
});