View split.sh
| convert image.png -colorspace YUV -sampling-factor 4:2:2 -separate \ | |
| \( -clone 0 \) \ | |
| \( -clone 1 -fill black -colorize 100% \) \ | |
| \( -clone 1 -negate \) \ | |
| \( -clone 1 \) \ | |
| image_b_temp.png | |
| convert image_b_temp-4.png image_b_temp-5.png image_b_temp-6.png -channel RGB -combine image_b.png | |
| convert image.png -colorspace YUV -sampling-factor 4:2:2 -separate \ |
View async-decoding.html
| <html> | |
| <body> | |
| <div class="jank-detector"> | |
| Random numbers, to highlight jank: | |
| <span class="rand"></span> | |
| </div> | |
| <script> | |
| const rand = document.querySelector(".rand"); | |
| function randFrame() { | |
| rand.textContent = Math.random(); |
inian
/ image-decode-promise.js
Last active Jun 13, 2019
View image-decode-promise.js
| const img = new Image(); | |
| img.src = "cat.png"; | |
| img.decode().then(() => { | |
| // image fully decoded and can be safely rendered on the screen | |
| const orig = document.getElementById("orig"); | |
| orig.parentElement.replaceChild(img, orig); | |
| }); |
View network-aware-sw.js
| function modifyURL(url) { | |
| // ect can be 'slow-2g', '2g', '3g', or '4g'. | |
| const connectionType = navigator.connection.effectiveType; | |
| if (connectionType === "slow-2g" || connectionType === "2g") { | |
| return url + "?opt=aggressive"; | |
| } else if (connectionType === "4g") { | |
| return url + "?opt=mild"; | |
| } else { | |
| return url + "?opt=default"; | |
| } |
View hapi.js
| var fs = require('fs'); | |
| var Hapi = require('hapi'); | |
| var http2 = require('http2'); | |
| var options = { | |
| key: fs.readFileSync('./selfsigned.key'), | |
| cert: fs.readFileSync('./selfsigned.crt'), | |
| }; | |
| var server = new Hapi.Server(); |
inian
/ http2-compatibility-api.js
Last active Nov 4, 2017
Creating a zero-dependency Node.js static file server
View http2-compatibility-api.js
| const http2 = require('http2'); | |
| const fs = require('fs'); | |
| const options = { | |
| key: fs.readFileSync('./selfsigned.key'), | |
| cert: fs.readFileSync('./selfsigned.crt'), | |
| allowHTTP1: true | |
| } | |
| const server = http2.createSecureServer(options, (req, res) => { |
View unregister.js
| try { | |
| navigator.serviceWorker.getRegistrations().then(function(registrations) { | |
| registrations.forEach(function(registration) { | |
| if (registration.active && registration.active.scriptURL.includes("dexecure")) { | |
| console.log('removing registration', registration); | |
| registration.unregister(); | |
| } | |
| }) | |
| }) | |
| } catch (e) { |
View brotli-sw.js
| // MIT License | |
| // Copyright (c) 2016 Dexecure | |
| // Permission is hereby granted, free of charge, to any person obtaining a copy | |
| // of this software and associated documentation files (the "Software"), to deal | |
| // in the Software without restriction, including without limitation the rights | |
| // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
| // copies of the Software, and to permit persons to whom the Software is | |
| // furnished to do so, subject to the following conditions: |
View swapon.sh
| sudo fallocate -l 2G /swapfile | |
| sudo chmod 600 /swapfile | |
| sudo mkswap /swapfile | |
| sudo swapon /swapfile |
View download.sh
| wget -E -H -k -K -p -t 2 -T 30 --user-agent="Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36" -e robots=off http://example.com |
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