JavaScript Drum Kit 指南(纯 JS 模拟敲鼓效果)

(编辑：jimmy 日期: 2024/11/17 浏览：3 次 )

核心代码：

<script>
 function removeTransition(event) {
  if (event.propertyName !== 'transform') return; // 过滤其中一种事件
  event.target.classList.remove('playing'); // 移除高亮的样式
 }

 function playSound(event) {
  const audio = document.querySelector(`audio[data-key="${event.keyCode}"]`); // 根据触发按键的键码，获取对应音频
  const key = document.querySelector(`div[data-key="${event.keyCode}"]`); // 获取页面对应按钮 DIV 元素
  if (!audio) return; // 处理无效的按键事件

  key.classList.add('playing'); // 改变样式
  audio.currentTime = 0; // 每次播放之后都使音频播放进度归零
  audio.play(); // 播放相应音效
 }

 const keys = Array.from(document.querySelectorAll('.key')); // 获取页面所有按钮元素
 keys.forEach(key => key.addEventListener('transitionend', removeTransition)); // 添加 transition 事件监听
 window.addEventListener('keydown', playSound);
</script>

中文版本完整代码：

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>JS Drum Kit</title>
 <link rel="stylesheet" href="style.css" rel="external nofollow" rel="external nofollow" >
</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="/UploadFiles/2021-04-02/clap.wav">

英文版本完整代码：


<!DOCTYPE html>
<html lang="en">

<head>
 <meta charset="UTF-8">
 <title>JS Drum Kit</title>
 <link rel="stylesheet" href="style.css" rel="external nofollow" rel="external nofollow" >
</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="/UploadFiles/2021-04-02/clap.wav">

在线演示地址：http://demo.jb51.net/js/2017/JavaScript30/JavaScriptDrumKit/index-FINISHED.html
请在chrome浏览器下查看效果。

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