Janis Pritzkau janispritzkau
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| import { dirname, extname, resolve } from "https://deno.land/std/path/mod.ts"; | |
| const MODE_EVAL = 0; | |
| const MODE_ESCAPED = 1; | |
| const MODE_RAW = 2; | |
| interface Range { | |
| source: [number, number]; | |
| code: [number, number]; | |
| } |
janispritzkau
/ analytics.js
Last active
April 5, 2022 17:51
Minimal Google Analytics Script (677 bytes minified)
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| ((document, location, navigator) => { | |
| const domain = location.hostname.split(".") | |
| const match = document.cookie.match(/(^|; ?)_ga=GA1\.\d\.(\d+\.\d+)(;|$)/) | |
| // use existing client id or generate one | |
| const cid = match ? match[2] : ~~(2147483648 * Math.random()) + "." + ~~(Date.now() / 1000) | |
| // set cookie at highest possible domain level | |
| for (let i = domain.length; i--;) { | |
| const cookie = `_ga=GA1.${domain.length - i}.${cid}` |
janispritzkau
/ index.html
Last active
November 1, 2019 16:28
Rendering area chart with WebGL (1 million points)
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| <!DOCTYPE html> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | |
| <title>WebGL Chart</title> | |
| <span id="fps">Loading</span> | |
| <canvas></canvas> | |
| <style> | |
| body { |
janispritzkau
/ webgl-example.js
Last active
June 15, 2023 08:35
Simple WebGL example with basic error handling
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| const canvas = document.querySelector("canvas") | |
| canvas.width = 800, canvas.height = 600 | |
| canvas.style.width = `${canvas.width / devicePixelRatio}px` | |
| const gl = canvas.getContext("webgl") | |
| const vertexShader = gl.createShader(gl.VERTEX_SHADER) | |
| const fragmentShader = gl.createShader(gl.FRAGMENT_SHADER) | |
| gl.shaderSource(vertexShader, ` |
janispritzkau
/ game-of-life.html
Last active
August 21, 2019 18:42
Code golf: Game of Life (286 bytes)
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| <canvas id="c"><script>t=c.getContext("2d"),s=150,a=[];for(i=s*s;i--;)a[i]=Math.random()<.1;setInterval(_=>{b=[],t.clearRect(0,0,s,s);for(i=s*s;i--;){n=0;for(j=9;j--;)n+=a[(~~(i/s)+s+j%3-1)%s*s+(i+s+~~(j/3)-1)%s];b[i]=n==3||n-a[i]==3,a[i]&&t.fillRect((i%s),~~(i/s),1,1)}a=b},s)</script> |
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