JSFiddle - React, Tailwind, and code Playground
HTML
<div id="eventlog">
</div>
JavaScript
var eventLog = $("#eventlog");
var konamiCode = [38,38,40,40,37,39,37,39,66,65]
var keyIndex = 0;
$(document).bind('keydown', function(e){
var key = e.which;
if (konamiCode[keyIndex] == key){
keyIndex++;
}else{
keyIndex = 0;
}
if (keyIndex == konamiCode.length){
//code entered successfully
alert("A winnar is you!");
keyIndex = 0;
}
});