<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>JS Bin</title>
</head>
<body>
<!--
adapted from https://codepen.io/yshlin/pen/ylDEk
-->
<div class="pyro">
<div class="before"></div>
<div class="after"></div>
</div>
</body>
</html>
body {
margin:0;
padding:0;
background: black;
overflow: hidden;
position: absolute;
bottom: 0;
left: 0;
right: 0;
top: 0;
}
.pyro > .before, .pyro > .after {
position: absolute;
width: 5px;
height: 5px;
border-radius: 50%;
}
@keyframes position {
0%, 19.9% {
margin-top: 10%;
margin-left: 40%;
}
20%, 39.9% {
margin-top: 40%;
margin-left: 30%;
}
40%, 59.9% {
margin-top: 20%;
margin-left: 70%
}
60%, 79.9% {
margin-top: 30%;
margin-left: 20%;
}
80%, 99.9% {
margin-top: 30%;
margin-left: 80%;
}
}
function animate(element, duration, delay, duration2) {
const particles = 50;
const height = 500;
const width = 500;
const startPos = [];
const endPos = [];
const random = n => {
return Math.floor(Math.random() * n);
};
for (let i = 0; i < particles; i++) {
const theta = random(360);
const gamma = random(360);
const r = 0.7 * width;
const xOffset = Math.floor(r * Math.cos(theta) * Math.cos(gamma));
const yOffset = Math.floor(r * Math.cos(theta) * Math.sin(gamma));
const hue = random(360);
endPos.push(`${xOffset}px ${yOffset}px hsl(${hue},100%,50%)`);
startPos.push('0 0 #fff');
}
element.style.animation =
`${duration2}s position linear infinite backwards`;
element.animate(
[
{ boxShadow: startPos.join(',') },
{ boxShadow: endPos.join(',') }
],
{
duration: duration,
delay: delay,
easing: 'ease-out',
fill: 'backwards',
iterations: Infinity
});
element.animate(
[
{ transform: 'none', opacity: 1 },
{ transform: 'translateY(200px)', opacity: 0 }
],
{
duration: duration,
delay: delay,
easing: 'ease-in',
fill: 'backwards',
iterations: Infinity
});
}
animate(document.querySelector('.before'), 1000, 1250, 5);
animate(document.querySelector('.after'), 1250, 1250, 6.25);
Output
You can jump to the latest bin by adding /latest
to your URL
Keyboard Shortcuts
Shortcut | Action |
---|---|
ctrl + [num] | Toggle nth panel |
ctrl + 0 | Close focused panel |
ctrl + enter | Re-render output. If console visible: run JS in console |
Ctrl + l | Clear the console |
ctrl + / | Toggle comment on selected lines |
ctrl + ] | Indents selected lines |
ctrl + [ | Unindents selected lines |
tab | Code complete & Emmet expand |
ctrl + shift + L | Beautify code in active panel |
ctrl + s | Save & lock current Bin from further changes |
ctrl + shift + s | Open the share options |
ctrl + y | Archive Bin |
Complete list of JS Bin shortcuts |
JS Bin URLs
URL | Action |
---|---|
/ | Show the full rendered output. This content will update in real time as it's updated from the /edit url. |
/edit | Edit the current bin |
/watch | Follow a Code Casting session |
/embed | Create an embeddable version of the bin |
/latest | Load the very latest bin (/latest goes in place of the revision) |
/[username]/last | View the last edited bin for this user |
/[username]/last/edit | Edit the last edited bin for this user |
/[username]/last/watch | Follow the Code Casting session for the latest bin for this user |
/quiet | Remove analytics and edit button from rendered output |
.js | Load only the JavaScript for a bin |
.css | Load only the CSS for a bin |
Except for username prefixed urls, the url may start with http://jsbin.com/abc and the url fragments can be added to the url to view it differently. |