| /* | |
| Copy this into the console of any web page that is interactive and doesn't | |
| do hard reloads. You will hear your DOM changes as different pitches of | |
| audio. | |
| I have found this interesting for debugging, but also fun to hear web pages | |
| render like UIs do in movies. | |
| */ | |
| const audioCtx = new (window.AudioContext || window.webkitAudioContext)() |
| #!/usr/bin/env bash | |
| LOG_PATH="/home/$(whoami)/log/speedtest.log" | |
| if result=$(/usr/bin/speedtest --simple); then | |
| parsed_result=$(printf "${result}\"" | sed ':a;N;$!ba;s/\n/" /g' | sed 's/: /="/g') | |
| printf "[$(date)] ${parsed_result}\n" >> "${LOG_PATH}" | |
| else | |
| printf "[$(date)] error\n" >> "${LOG_PATH}" | |
| exit 1 |
All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.
Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.
elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent
These rules are adopted from the AngularJS commit conventions.