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Christian Petersen fnky

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ryanflorence / $post.edit.tsx
Last active March 9, 2022 22:50
The Anatomy of a Remix Route
View $post.edit.tsx
* The Anatomy of a Remix Route
import { parseFormBody, json, redirect } from "@remix-run/data";
import {
} from "@remix-run/react";
bvaughn /
Last active November 9, 2023 07:13
Advanced example for manually managing subscriptions in an async-safe way using hooks

The MIT License (MIT)

Copyright © <year> <copyright holders>

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

fnky /
Last active February 22, 2024 14:57
ANSI Escape Codes

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

  • Ctrl-Key: ^[
  • Octal: \033
  • Unicode: \u001b
  • Hexadecimal: \x1B
  • Decimal: 27
cprovatas / Data+PrettyPrint.swift
Created May 23, 2018 15:52
Pretty print JSON string from Data in Swift 4.1 (especially useful printing to Xcode console)
View Data+PrettyPrint.swift
import Foundation
extension Data {
var prettyPrintedJSONString: NSString? { /// NSString gives us a nice sanitized debugDescription
guard let object = try? JSONSerialization.jsonObject(with: self, options: []),
let data = try? object, options: [.prettyPrinted]),
let prettyPrintedString = NSString(data: data, encoding: String.Encoding.utf8.rawValue) else { return nil }
return prettyPrintedString

In this tutorial we're going to build a set of parser combinators.

What is a parser combinator?

We'll answer the above question in 2 steps.

  1. What is a parser?
  2. and, what is a parser combinator?

So first question: What is parser?

acdlite /
Last active March 20, 2022 12:27
Demo: Coordinating async React with non-React views

Demo: Coordinating async React with non-React views

tl;dr I built a demo illustrating what it might look like to add async rendering to Facebook's commenting interface, while ensuring it appears on the screen simultaneous to the server-rendered story.

A key benefit of async rendering is that large updates don't block the main thread; instead, the work is spread out and performed during idle periods using cooperative scheduling.

But once you make something async, you introduce the possibility that things may appear on the screen at separate times. Especially when you're dealing with multiple UI frameworks, as is often the case at Facebook.

How do we solve this with React?

tmslnz /
Last active March 20, 2023 07:07
Setting up dnsmasq on OS X

Install dnsmasq

Via brew or other method

Set up DNS resolver order

In order to work on every connection and on any TLD, dnsmasq needs to be the first DNS resolver receving the query.

And since dnsmasq is a local process, all DNS queries need to go to

On macOS, /etc/resolv.conf is automaticaly created, depending on a variety of things (network settings, etc), so it cannot be edited.

Rich-Harris /
Last active February 21, 2024 13:48
Stuff I wish I'd known sooner about service workers

Stuff I wish I'd known sooner about service workers

I recently had several days of extremely frustrating experiences with service workers. Here are a few things I've since learned which would have made my life much easier but which isn't particularly obvious from most of the blog posts and videos I've seen.

I'll add to this list over time – suggested additions welcome in the comments or via

Use Canary for development instead of Chrome stable

Chrome 51 has some pretty wild behaviour related to console.log in service workers. Canary doesn't, and it has a load of really good service worker related stuff in devtools.


@kangax's ES6 quiz, explained

@kangax created a new interesting quiz, this time devoted to ES6 (aka ES2015). I found this quiz very interesting and quite hard (made myself 3 mistakes on first pass).

Here we go with the explanations:

Question 1:
(function(x, f = () =&gt; x) {
sigsegv-mvm / CSGO_SavedBy.cpp
Created October 16, 2015 05:13
Reverse-engineered logic for CS:GO's "X just saved Y by killing Z" feature
View CSGO_SavedBy.cpp
// CS:GO "saved" player logic
// based on the 20151008 version of the CS:GO Linux dedicated server
// reverse engineering by sigsegv
// from x86 assembly to C++ with the help of a disassembler and the Source SDK
// (please don't sue me)
// terminology:
// "enemy" player who was just killed by savior