<html>
<head>
<meta charset=utf-8 />
<title>JS Bin</title>
</head>
<body>
<canvas id="canvas" width="500px" height="500px"></canvas>
</body>
</html>
canvas {
border: 1px solid black;
}
/*
Inspired by a fiddle from @seb_ly
http://jsfiddle.net/sebleedelisle/Uer2g/
Written by @alawatthe
*/
var canvas = document.getElementById('canvas'),
ctx = canvas.getContext('2d'),
t = 0,
length = 200,
factor = Math.sqrt(0.5),
draw, tree;
ctx.setTransform(1, 0, 0, -1, 250, 500);
tree = function (angle, gen) {
ctx.save();
ctx.rotate(angle);
ctx.beginPath();
ctx.moveTo(0, 0);
ctx.translate(0, length*Math.pow(factor, gen));
ctx.lineTo(0, 0);
ctx.stroke();
if (gen <= 10) {
tree( t, gen+1);
tree(-t, gen+1);
}
ctx.restore();
};
draw = function () {
t += 0.005;
ctx.clearRect(-250, 0, 500, 500);
tree(0, 1);
};
setInterval(draw, 33);
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. |