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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>
</div>
<div data-key="83" class="key">
<kbd>S</kbd>
<span class="sound">hihat</span>
</div>
<div data-key="68" class="key">
<kbd>D</kbd>
<span class="sound">kick</span>
</div>
<div data-key="70" class="key">
<kbd>F</kbd>
<span class="sound">openhat</span>
</div>
<div data-key="71" class="key">
<kbd>G</kbd>
<span class="sound">boom</span>
</div>
<div data-key="72" class="key">
<kbd>H</kbd>
<span class="sound">ride</span>
</div>
<div data-key="74" class="key">
<kbd>J</kbd>
<span class="sound">snare</span>
</div>
<div data-key="75" class="key">
<kbd>K</kbd>
<span class="sound">tom</span>
</div>
<div data-key="76" class="key">
<kbd>L</kbd>
<span class="sound">tink</span>
</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>
const keyEls = document.querySelectorAll('div.key')
function makeDrumBeat(keyEl) {
keyEl.classList.add('playing')
const keyCode = keyEl.getAttribute('data-key')
const audioEl = document.querySelector(`audio[data-key='${keyCode}']`)
audioEl.currentTime = 0
audioEl.play()
}
// for the entire window, add an event listener for keyboard down
window.addEventListener('keydown', event => {
const keyEl = document.querySelector(
`div[data-key='${event.keyCode}']`)
if (keyEl) {
makeDrumBeat(keyEl)
}
})
// for each of the keys, add an event listener for clicks
// and for the end of the CSS transition
keyEls.forEach(keyEl => {
keyEl.addEventListener('mousedown', () => {
makeDrumBeat(keyEl)
})
keyEl.addEventListener('transitionend', event => {
if (event.propertyName === 'transform') {
keyEl.classList.remove('playing')
}
})
})
</script>
</body>
</html>