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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>JS Drum Kit</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div class="layer">
<h1>#JavaScript30 Drum Example</h1>
<div class="drums">
<div class="drumkit">
<div class="drum" data-key="65">
<div class="drum-note">A</div>
<div class="drum-sound">Clap</div>
</div>
<div class="drum" data-key="83">
<div class="drum-note">S</div>
<div class="drum-sound">HiHat</div>
</div>
<div class="drum" data-key="68">
<div class="drum-note">D</div>
<div class="drum-sound">Kick</div>
</div>
<div class="drum" data-key="70">
<div class="drum-note">F</div>
<div class="drum-sound">OpenHat</div>
</div>
<div class="drum" data-key="71">
<div class="drum-note">G</div>
<div class="drum-sound">Boom</div>
</div>
<div class="drum" data-key="72">
<div class="drum-note">H</div>
<div class="drum-sound">Ride</div>
</div>
<div class="drum" data-key="74">
<div class="drum-note">J</div>
<div class="drum-sound">Snare</div>
</div>
<div class="drum" data-key="75">
<div class="drum-note">K</div>
<div class="drum-sound">Tom</div>
</div>
<div class="drum" data-key="76">
<div class="drum-note">L</div>
<div class="drum-sound">Tink</div>
</div>
</div>
</div>
</div>
<audio data-key="65" src="sounds/clap.wav"></audio>
<audio data-key="83" src="sounds/hihat.wav"></audio>
<audio data-key="68" src="sounds/kick.wav"></audio>
<audio data-key="70" src="sounds/openhat.wav"></audio>
<audio data-key="71" src="sounds/boom.wav"></audio>
<audio data-key="72" src="sounds/ride.wav"></audio>
<audio data-key="74" src="sounds/snare.wav"></audio>
<audio data-key="75" src="sounds/tom.wav"></audio>
<audio data-key="76" src="sounds/tink.wav"></audio>
<script>
// keydown listener
window.addEventListener('keydown', drummer);
function removeTransition(e) {
// if propertyName is not a transform end function
if (e.propertyName !== 'transform') return;
// add remove class of playing on the elem that called it
this.classList.remove('playing');
}
function drummer(e) {
// sets up constants
const audio = document.querySelector(`audio[data-key="${e.keyCode}"`);
const drum = document.querySelector(`div[data-key="${e.keyCode}"`);
// if not an audio tag end function
if (!audio) return;
// reset play time to 0
audio.currentTime = 0;
// play corresponding audio tag
audio.play();
// add playing class for css effect
drum.classList.add('playing');
}
//drum loop and transitionend key
const drums = document.querySelectorAll('.drum');
drums.forEach(drum => drum.addEventListener('transitionend', removeTransition));
</script>
</body>
</html>