JSFiddle - React, Tailwind, and code Playground

by bmartinelle

HTML

<form name="kForm" onsubmit="return kValForm()">Name:
    <input type="text" name="kName" placeholder="Khalifa"></input>
    <br/>...
    <br/>
    <input type="submit"/>
</form>

JavaScript

function kValForm() {
    var n = document.forms["kForm"]["kName"].value;

    if (n == null || n == " " || n =="") {
        alert("Please fill in your name.");
        return false;
    }
}