Core code:
<script>
function removeTransition(event) {
if ( !== 'transform') return; // Filter one of the events ('playing'); // Remove the highlighted style }
function playSound(event) {
const audio = (`audio[data-key="${}"]`); // Obtain the corresponding audio according to the key code of the trigger button const key = (`div[data-key="${}"]`); // Get the corresponding button DIV element of the page if (!audio) return; // Handle invalid key event
('playing'); // Change the style = 0; // After each playback, the audio playback progress is reset to zero (); // Play the corresponding sound effects }
const keys = (('.key')); // Get all button elements on the page (key => ('transitionend', removeTransition)); // Add transition event listening ('keydown', playSound);
</script>
Full code in Chinese version:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>JS Drum Kit</title>
<link rel="stylesheet" href="" 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="sounds/"></audio>
<audio data-key="83" src="sounds/"></audio>
<audio data-key="68" src="sounds/"></audio>
<audio data-key="70" src="sounds/"></audio>
<audio data-key="71" src="sounds/"></audio>
<audio data-key="72" src="sounds/"></audio>
<audio data-key="74" src="sounds/"></audio>
<audio data-key="75" src="sounds/"></audio>
<audio data-key="76" src="sounds/"></audio>
<script>
function removeTransition(event) {
if ( !== 'transform') return; // Filter one of the events ('playing'); // Remove the highlighted style }
function playSound(event) {
const audio = (`audio[data-key="${}"]`); // Obtain the corresponding audio according to the key code of the trigger button const key = (`div[data-key="${}"]`); // Get the corresponding button DIV element of the page if (!audio) return; // Handle invalid key event
('playing'); // Change the style = 0; // After each playback, the audio playback progress is reset to zero (); // Play the corresponding sound effects }
const keys = (('.key')); // Get all button elements on the page (key => ('transitionend', removeTransition)); // Add transition event listening ('keydown', playSound);
</script>
</body>
</html>
English version complete code:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>JS Drum Kit</title>
<link rel="stylesheet" href="" 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="sounds/"></audio>
<audio data-key="83" src="sounds/"></audio>
<audio data-key="68" src="sounds/"></audio>
<audio data-key="70" src="sounds/"></audio>
<audio data-key="71" src="sounds/"></audio>
<audio data-key="72" src="sounds/"></audio>
<audio data-key="74" src="sounds/"></audio>
<audio data-key="75" src="sounds/"></audio>
<audio data-key="76" src="sounds/"></audio>
<script>
/** GOAL: When a user opens this page and presses a key that corresponds with
* one of our div elements, we should play the audio clip associated with
* the keypress, add a class to the specific element that matches with the keypress,
* and then remove that class in order to reset the element to it's original state.
*/
(()=> {
const playSound = (e) => {
const soundclip = (`audio[data-key="${}"]`);
const keyelement = (`.key[data-key="${}"]`);
if (!soundclip) return undefined; // Stop function from running if key pressed doesn't match up with our elements
('playing');
// Ensures that the sound clip always plays from the beginning. Otherwise,
// if the 'a' key is pressed twice rapidly, the soundclip will only play through
// once.
= 0;
(); // Play sound
}
const removeTransition = (e) => {
// skip if it's not a transform event
if ( !== 'transform') return undefined;
('playing');
}
// Find all elements in the document with a class 'key'
const keys = ('.key');
// Listen for any `keydown` events that occur on this browser window instance (this page)
// When a `keydown` event is observered, trigger the `playSound` function, passing in the
// `keydown` event as the argument (e)
('keydown', playSound);
(key =>
(
'transitionend',
(e) => (key, e)
));
})();
</script>
</body>
</html>
Online demonstration address:http://demo./js/2017/JavaScript30/JavaScriptDrumKit/
Please check the effect in the chrome browser.