JS：JavaScript Drum Kit
使用按键控制 audio 标签发出声音。
键盘按下去的时候，获取到按键的 keycode，在获取到对应的标签。
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
</head>
<body>
<div>
<audio src="assets/drumroll.mp3" data-key="65"></audio>
<audio src="assets/drumroll.mp3" data-key="83"></audio>
<audio src="assets/drumroll.mp3" data-key="68"></audio>
<audio src="assets/drumroll.mp3" data-key="70"></audio>
</div>
<script>
window.addEventListener("keydown", function (e) {
// console.log(e.key);
console.log(e.keyCode);
const audio = document.querySelector(`audio[data-key="${e.keyCode}"]`);
console.log(audio);
if (!audio) {
return;
}
audio.currentTime = 0; // rewind the start
audio.play();
});
</script>
</body>
</html>code github site wesbos/javascript30
video site javascript30
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