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emillind wants to merge 3 commits into from
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Pull recent changes #41

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4f57364
First done.
emillind Dec 11, 2016
2c480df
2nd done.
emillind Dec 11, 2016
3306d98
3rd done.
emillind Dec 12, 2016
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14 changes: 14 additions & 0 deletions 01 - JavaScript Drum Kit/index-START.html
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Original file line number Diff line number Diff line change
Expand Up @@ -58,7 +58,21 @@
<audio data-key="76" src="sounds/tink.wav"></audio>

<script>
const keys = document.querySelectorAll('.key');
// Remove playing class from key after transition has ended.
keys.forEach(key => key.addEventListener('transitionend', function(e) {
this.classList.remove('playing');
}));

// Listens for keystrokes and querys the corresponding button and audio.
window.addEventListener("keydown", function(e) {
var audio = document.querySelector(`audio[data-key="${e.keyCode}"]`);
if (!audio) return;
var key = document.querySelector(`.key[data-key="${e.keyCode}"]`);
key.classList.add('playing')
audio.currentTime = 0; //Does not work in Safari
audio.play();
})
</script>


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19 changes: 19 additions & 0 deletions 02 - JS + CSS Clock/index-START.html
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Expand Up @@ -61,12 +61,31 @@
background:black;
position: absolute;
top:50%;
transform: rotate(90deg);
transition-timing-function: ease-in-out;
transform-origin: 100%;
transition-duration: 0.1s;
}

</style>

<script>
const secondHand = document.querySelector(`.second-hand`);
const minuteHand = document.querySelector(`.min-hand`);
const hourHand = document.querySelector(`.hour-hand`);
function time() {
var date = new Date();
var seconds = 90 + date.getSeconds()*6
secondHand.style.transform = `rotate(${seconds}deg)`;

var minutes = 90 + date.getMinutes()*6
minuteHand.style.transform = `rotate(${minutes}deg)`;

var hours = 90 + date.getHours()*30
hourHand.style.transform = `rotate(${hours}deg)`;
}

setInterval(time, 1000);

</script>
</body>
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22 changes: 22 additions & 0 deletions 03 - CSS Variables/index-START.html
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Expand Up @@ -22,6 +22,21 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>

<style>

:root {
--base: yellow;
--spacing: 10px;
--blur: 10px;
}

img {
padding: var(--spacing);
background: var(--base);
filter: blur(var(--blur));
}

.hl {
color: var(--base);
}
/*
misc styles, nothing to do with CSS variables
*/
Expand Down Expand Up @@ -53,6 +68,13 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
</style>

<script>
function change() {
var suffix = this.dataset.sizing || '';
document.documentElement.style.setProperty(`--${this.name}`, (this.value+suffix));
}

const inputs = document.querySelectorAll(`.controls input`);
inputs.forEach(input => input.addEventListener('input', change));
</script>

</body>
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