JSFiddle - React, Tailwind, and code Playground

by padma rubhan

HTML

<input type="text" id="nospace" onkeydown="call(event)" />

JavaScript

function call(e) {
        if (document.getElementById('nospace').value.length == 0) {
            if (e.keyCode == 32) {
                e.preventDefault();
            }
        }
}