Andrew Wong w0ng

I heard some points of criticism to how React deals with reactivity and it's focus on "purity". It's interesting because there are really two approaches evolving. There's a mutable + change tracking approach and there's an immutability + referential equality testing approach. It's difficult to mix and match them when you build new features on top. So that's why React has been pushing a bit harder on immutability lately to be able to build on top of it. Both have various tradeoffs but others are doing good research in other areas, so we've decided to focus on this direction and see where it leads us.

I did want to address a few points that I didn't see get enough consideration around the tradeoffs. So here's a small brain dump.

"Compiled output results in smaller apps" - E.g. Svelte apps start smaller but the compiler output is 3-4x larger per component than the equivalent VDOM approach. This is mostly due to the code that is usually shared in the VDOM "VM" needs to be inlined into each component. The tr

If you use server rendering, keep in mind that neither useLayoutEffect nor useEffect can run until the JavaScript is downloaded.

You might see a warning if you try to useLayoutEffect on the server. Here's two common ways to fix it.

Option 1: Convert to useEffect

If this effect isn't important for first render (i.e. if the UI still looks valid before it runs), then useEffect instead.

function MyComponent() {

Step 1 - Make a Discord Webhook

Find the Discord channel in which you would like to send commits and other updates
In the settings for that channel, find the Webhooks option and create a new webhook. Note: Do NOT give this URL out to the public. Anyone or service can post messages to this channel, without even needing to be in the server. Keep it safe!

Step 2 - Set up the webhook on Github

Navigate to your repository on Github, and open the Settings

What forces layout / reflow

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.

Element APIs

Getting box metrics

elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent

Encoding Video

Installing

Install FFmpeg with homebrew. You'll need to install it with a couple flags for webm and the AAC audio codec.

brew install ffmpeg --with-libvpx --with-libvorbis --with-fdk-aac --with-opus

	use framework "Foundation"
	use scripting additions

	-- https://forum.latenightsw.com/t/reading-json-data-with-nsjsonserialization/958/2
	on readJSON(strJSON)
	set ca to current application
	set {x, e} to ca's NSJSONSerialization's JSONObjectWithData:((ca's NSString's stringWithString:strJSON)'s dataUsingEncoding:(ca's NSUTF8StringEncoding)) options:0 \|error\|:(reference)
	if x is missing value then
	error e's localizedDescription() as text
	else

	on alfred_script(q)
	do shell script "/Applications/Kitty.app/Contents/MacOS/kitty @ --to unix:/tmp/mykitty new-window --new-tab"
	tell application "kitty" to activate
	tell application "System Events" to keystroke q
	tell application "System Events"
	key code 36 -- enter key
	end tell
	end alfred_script

	(* 2019-06-07: Added nohup and output redirection to fix a bug with "Open Terminal here" feature.
	Thanks to @fools-mate for bringing the issue to my attention. *)
	on alfred_script(q)
	do shell script "cd ~; nohup /Applications/kitty.app/Contents/MacOS/kitty /bin/bash -c \"source ~/.bashrc && " & q & ";/bin/bash\" > /dev/null 2>&1 &"
	end alfred_script

	#!/bin/bash

	web_service='nginx'
	config_file="/usr/local/etc/le-renew-webroot.ini"

	le_path='/opt/letsencrypt'
	exp_limit=30;

	if [ ! -f $config_file ]; then
	echo "[ERROR] config file does not exist: $config_file"

	'''
	Easy Mac
	Copyright (2015) Sean Beck
	Licensed under Creative Commons Attribution-ShareAlike 4.0 International
	See: https://creativecommons.org/licenses/by-sa/4.0/

	Easily change your MAC address on Linux using `ifconfig`
	'''
	#!/usr/bin/python2.7