JSFiddle - React, Tailwind, and code Playground

by cuzzea

HTML

<input type="text" id="a1" />

<pre id="log"></pre>

JavaScript

var input = document.getElementById("a1")
var log = document.getElementById("log")

a1.addEventListener('keydown', logKey);

function logKey(e) {
if(!e.repeat)
  log.textContent = `REPEAT: ${e.repeat} ; KEY: ${e.key} ; SHIFT: ${e.shiftKey}\n`+log.textContent;
}