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@mewset
mewset / playwright-arch-linux-fix.md
Created January 5, 2026 19:59
Playwright on Arch Linux - use system Chromium instead of bundled

Playwright on Arch Linux - just use system Chromium

So you're on Arch and Playwright is being a pain? Yeah, same. Here's what happens:

$ npm init playwright@latest
BEWARE: your OS is not officially supported by Playwright; installing dependencies for ubuntu24.04-x64 as a fallback.
Installing dependencies...
sh: line 1: apt-get: command not found
Failed to install browsers
@frankiesardo
frankiesardo / core.cljs
Created February 7, 2020 15:17
stop.worry/love-js
(ns stop-worry.core
(:require ["react" :as react :rename {createElement $}]
["react-dom" :as dom]
[goog.object :as obj]
[cljs.core.async :as async]))
(extend-type object
ILookup
(-lookup
([o k] (obj/get o (name k)))
@bvaughn
bvaughn / useSubscription-and-useMutableSource.md
Last active December 29, 2021 02:12
`useSubscription` and `useMutableSource` tearing and deopt behavior.

useSubscription and useMutableSource1 tearing and deopt behavior.

Mounting a new tree

The tree below represents a React application mounting. During mount, two components read from an external, mutable source. The first one (List) reads version 1 of that data and the second one (Item) reads version 2.

Deopt

useSubscription (legacy mode)

N/A.

@carlolars
carlolars / .wsl-git.md
Last active May 25, 2026 13:31
HOWTO: Use WSL and its Git in a mixed development environment

How to setup a development environment where Git from WSL integrates with native Windows applications, using the Windows home folder as the WSL home and using Git from WSL for all tools.

Note if using Git for Windows, or any tool on the Windows side that does not use Git from WSL then there will likely be problems with file permissions if using those files from inside WSL.

Tools

These are the tools I use:

  • git (wsl) - Command line git from within WSL.
  • Fork (windows) - Git GUI (must be used with wslgit)
  • wslgit - Makes git from WSL available for Windows applications. Important! Follow the installation instructions and do (at least) the first optional step and then the Usage in Fork instructions.
@Jessidhia
Jessidhia / react-scheduler.md
Last active June 11, 2024 10:48
Implementation notes on react's scheduling model as of (shortly before) 16.8.0

Implementation notes on react's scheduling model as of (shortly before) 16.8.0

While the public API intended for users to use is the scheduler package, the reconciler currently does not use scheduler's priority classes internally.

ReactFiberScheduler has its own internal "mini-scheduler" that uses the scheduler package indirectly for its deadline-capable scheduleCallback.

This is kind of a documentation of implementation details that I suppose will be gone by the end of the year, but what can you do.

@fasiha
fasiha / no-hackerrank.md
Last active August 7, 2023 11:47
A prospective employer invited me to do a HackerRank test. Here's my proposed alternative.

Well, that was unexpected. In the following, I’m trying to follow Jon Evans’ advice from “The Terrible Technical Interview”.


To: recruitment@EmployerABC.com
From: Ahmed Fasih
Subject: Re: Programming Test Invitation

Hi there! Thanks for offering to let me take a HackerRank test for ABC, I appreciate the vote of confidence.

@bvaughn
bvaughn / eager-prefetching-async-data-example.js
Last active November 28, 2024 00:44
Advanced example for eagerly prefetching async data in a React component.
// This is an advanced example! It is not intended for use in application code.
// Libraries like Relay may make use of this technique to save some time on low-end mobile devices.
// Most components should just initiate async requests in componentDidMount.
class ExampleComponent extends React.Component {
_hasUnmounted = false;
state = {
externalData: null,
};
@timvisee
timvisee / falsehoods-programming-time-list.md
Last active August 16, 2026 05:48
Falsehoods programmers believe about time, in a single list

Falsehoods programmers believe about time

This is a compiled list of falsehoods programmers tend to believe about working with time.

Don't re-invent a date time library yourself. If you think you understand everything about time, you're probably doing it wrong.

Falsehoods

  • There are always 24 hours in a day.
  • February is always 28 days long.
  • Any 24-hour period will always begin and end in the same day (or week, or month).
@joepie91
joepie91 / genius-programmer.md
Last active July 6, 2025 15:25
The One Secret Trick To Becoming A Genius Programmer

The One Secret Trick To Becoming A Genius Programmer

Okay, the title of this post is a bit of a lie. There's no one secret trick to becoming a genius programmer - there are two, and they're more habits than tricks. Nevertheless, these kind of 'secret tricks' seem to resonate with people, so I went for this title anyway.

Every once in a while, a somewhat strange thing happens to me. I'll be helping somebody out on IRC - usually a beginner - answering a number of their questions in rapid succession, about a variety of topics. Then after a while, they call me a "genius" for being able to answer everything they're asking; either directly, or while talking about me to somebody else.

Now, I don't really agree with this "genius" characterization, and it can make me feel a bit awkward, but it shows that a lot of developers have a somewhat idealistic and nebulous notion of the "genius programmer" - the programmer that knows everything, who can do everything, who's never stumped by a problem, and of which ther

@qtrfeast
qtrfeast / sexp-cheat-sheet
Created September 13, 2017 19:21 — forked from dylanmcdiarmid/sexp-cheat-sheet
vim sexp mappings for normal people cheat sheet
.vimrc
" Map leader to comma
let maplocalleader=","
" Toggle this for vim-sexp to not go into insert mode after wrapping something
let g:sexp_insert_after_wrap = 0
" Toggle this to disable automatically creating closing brackets and quotes
let g:sexp_enable_insert_mode_mappings = 1
Vocab