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Merged
merged 1 commit into from
Oct 24, 2024
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add code and knowledge summary for js01 #1

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81 changes: 81 additions & 0 deletions 01 - JavaScript Drum Kit/index-MINE.html
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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">
<link rel="icon" href="https://fav.farm/🔥" />
</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>
window.addEventListener('keydown', (event) => {
const keyCode = event.keyCode;
const keyDiv = document.querySelector(`.key[data-key="${keyCode}"]`);
const audio = document.querySelector(`audio[data-key="${keyCode}"]`);

audio.currentTime = 0;
audio.play();
keyDiv.classList.add('playing');
});

const keys = document.querySelectorAll('.key');
keys.forEach(key => key.addEventListener('transitionend', (event) => {
if (event.propertyName != 'transform') return;
key.classList.remove('playing');
}));

</script>


</body>
</html>
36 changes: 36 additions & 0 deletions 01 - JavaScript Drum Kit/summary.md
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# Knowledge Summary
## JS

## Html
- kbd tag for semantic reading
- audio tag

## CSS
- background
```css
background-size: cover;
background: url('./background.jpg') bottom center;
```
- flex
```css
display: flex;
flex: 1;
align-items: center;
justify-content: center;
```
- vh unit is relative to viewport
- unit
- vh is relative to viewport
- rem is relative to the font size of the root element(html)
- transition and transform
```css
transition: all .07s ease;
transform: scale(1.1);
```
- box shadow
```css
box-shadow: 0 0 1rem #ffc600;
```