<!doctype html>
<html>
<head>
<title>2D Context</title>
<script>
window.onload = setup2d;
function setup2d()
{
const canvas = document.getElementById("my-canvas");
const context = canvas.getContext('2d');
context.fillStyle = random_rgba();
context.fillRect (10, 10, 100, 100);
context.fillStyle = random_rgba();
context.fillRect (120, 120, 100, 100);
context.fillStyle = random_rgba();;
context.fillRect (120, 10, 100, 100);
context.fillStyle = random_rgba();
context.fillRect (10, 120, 100, 100);
}
function random_rgba() {
var o = Math.round, r = Math.random, s = 255;
return 'rgba(' + o(r()*s) + ',' + o(r()*s) + ',' + o(r()*s) + ',' + r().toFixed(1) + ')';
}
</script>
<style>
#my-canvas {
background-color: yellow;
}
</style>
</head>
<body>
<p>Jarosław Gryczan</p>
<p>47184</p>
<canvas id="my-canvas" width="230" height="230">
</canvas>
</body>
</html>
{"html5":"htmlmixed","css":"css","javascript":"javascript","php":"php","python":"python","ruby":"ruby","lua":"text\/x-lua","bash":"text\/x-sh","go":"go","c":"text\/x-csrc","cpp":"text\/x-c++src","diff":"diff","latex":"stex","sql":"sql","xml":"xml","apl":"apl","asterisk":"asterisk","c_loadrunner":"text\/x-csrc","c_mac":"text\/x-csrc","coffeescript":"text\/x-coffeescript","csharp":"text\/x-csharp","d":"d","ecmascript":"javascript","erlang":"erlang","groovy":"text\/x-groovy","haskell":"text\/x-haskell","haxe":"text\/x-haxe","html4strict":"htmlmixed","java":"text\/x-java","java5":"text\/x-java","jquery":"javascript","mirc":"mirc","mysql":"sql","ocaml":"text\/x-ocaml","pascal":"text\/x-pascal","perl":"perl","perl6":"perl","plsql":"sql","properties":"text\/x-properties","q":"text\/x-q","scala":"scala","scheme":"text\/x-scheme","tcl":"text\/x-tcl","vb":"text\/x-vb","verilog":"text\/x-verilog","yaml":"text\/x-yaml","z80":"text\/x-z80"}