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index.html
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index.html
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<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Digital Clock</title>
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Open+Sans:wght@800&display=swap" rel="stylesheet">
</head>
<body>
<style>
* {
margin: 0;
padding: 0;
box-sizing: border-box;
font-family: 'Open Sans', sans-serif;
}
body{
background: #000000;
}
.clock {
display: flex;
position: absolute;
left: 0;
right: 0;
top: 0;
bottom: 0;
justify-content: center;
align-items: center;
gap: .25rem;
color: #ff0000;
font-size: 32vw;
letter-spacing: 1vw;
}
</style>
<div class="clock">
<div class="hour"></div>
<div>:</div>
<div class="minute"></div>
</div>
<script src="https://richtr.github.io/NoSleep.js/dist/NoSleep.min.js" type="text/javascript"></script>
<script>
var noSleep = new NoSleep();
var wakeLockEnabled = false;
var toggleEl = document.body;
var elem = document.documentElement;
/* View in fullscreen */
function openFullscreen() {
if (elem.requestFullscreen) {
elem.requestFullscreen();
} else if (elem.webkitRequestFullscreen) { /* Safari */
elem.webkitRequestFullscreen();
} else if (elem.msRequestFullscreen) { /* IE11 */
elem.msRequestFullscreen();
}
}
/* Close fullscreen */
function closeFullscreen() {
if (document.exitFullscreen) {
document.exitFullscreen();
} else if (document.webkitExitFullscreen) { /* Safari */
document.webkitExitFullscreen();
} else if (document.msExitFullscreen) { /* IE11 */
document.msExitFullscreen();
}
}
toggleEl.addEventListener('click', function () {
openFullscreen();
if (wakeLockEnabled) return;
noSleep.enable();
wakeLockEnabled = true;
console.log('wake lock is enabled!');
}, false);
function pad(num, size) {
num = num.toString();
while (num.length < size) num = "0" + num;
return num;
}
const hourEl = document.querySelector('.clock .hour');
const minuteEl = document.querySelector('.clock .minute');
function updateTime() {
const date = new Date();
const hours = date.getHours()
const minutes = date.getMinutes();
var paddedHour = pad(hours, 2);
var paddedMinutes = pad(minutes,2);
if(hourEl.innerHTML != paddedHour) hourEl.innerHTML = paddedHour;
if(minuteEl.innerHTML != paddedMinutes) minuteEl.innerHTML = paddedMinutes;
}
updateTime();
setInterval(() => {
updateTime();
}, 1000);
</script>
</body>
</html>