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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="keys">
<div data-key="65" class="key">
<kbd>A</kbd>
<span class="sound">clap</span>
<audio src="sounds/clap.wav"></audio>
</div>
<div data-key="83" class="key">
<kbd>S</kbd>
<span class="sound">hihat</span>
<audio src="sounds/hihat.wav"></audio>
</div>
<div data-key="68" class="key">
<kbd>D</kbd>
<span class="sound">kick</span>
<audio src="sounds/kick.wav"></audio>
</div>
<div data-key="70" class="key">
<kbd>F</kbd>
<span class="sound">openhat</span>
<audio src="sounds/openhat.wav"></audio>
</div>
<div data-key="71" class="key">
<kbd>G</kbd>
<span class="sound">boom</span>
<audio src="sounds/boom.wav"></audio>
</div>
<div data-key="72" class="key">
<kbd>H</kbd>
<span class="sound">ride</span>
<audio src="sounds/ride.wav"></audio>
</div>
<div data-key="74" class="key">
<kbd>J</kbd>
<span class="sound">snare</span>
<audio src="sounds/snare.wav"></audio>
</div>
<div data-key="75" class="key">
<kbd>K</kbd>
<span class="sound">tom</span>
<audio src="sounds/tom.wav"></audio>
</div>
<div data-key="76" class="key">
<kbd>L</kbd>
<span class="sound">tink</span>
<audio src="sounds/tink.wav"></audio>
</div>
</div>
<script>
let keySounds = [];
const soundElements = document.getElementsByClassName('key');
Array.prototype.forEach.call(soundElements, function(element) {
keySounds[element.dataset.key] = element;
});
window.addEventListener('keydown', function(event){
const soundElement = keySounds[event.keyCode];
if (!soundElement) { return };
const audioElement = soundElement.getElementsByTagName('audio')[0];
if (!audioElement) { return };
showSoundIsPlayingOn(soundElement);
playAudioElement(audioElement)
});
function showSoundIsPlayingOn(soundElement) {
soundElement.classList.add('playing');
soundElement.addEventListener('transitionend', function(event) {
if (event.propertyName != 'transform') { return; }
event.currentTarget.classList.remove('playing');
});
}
function playAudioElement(audioElement) {
audioElement.currentTime = 0;
audioElement.play();
}
</script>
</body>
</html>