JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" value="t" id="txt" />

JavaScript

$(document).on("keyup", function(e) {
  if ($('#txt').is(":focus")) {
    var code = (e.keyCode ? e.keyCode : e.which);
    if (code == 9) {
      alert('I was tabbed!');
    } else {
      alert('not tabbed');
    }
  }
});