Colin Howells colinhowells

Note

Hi, everyone. I've been putting in a lot of work on this over the last few ~~weeks~~ months (sob) and i'm currently underemployed! If you'd like to hire me to do CMS-based work (i focus on Craft and ExpressionEngine but i do some WordPress work as well), please reach out! Alternatively, if you'd like to chip in toward bills & groceries, that's a big help right now!

Updates (Most Recent First)

13 February 2025
8 February 2025
7 February 2025
6 February 2025
23 January 2025

V8

V8 is Google’s open source high-performance JavaScript and WebAssembly engine, written in C++. It is used in Chrome and in Node.js, among others. It implements ECMAScript and WebAssembly, and runs on Windows 7 or later, macOS 10.12+, and Linux systems that use x64, IA-32, ARM, or MIPS processors. V8 can run standalone, or can be embedded into any C++ application.

SpiderMonkey

SpiderMonkey is Mozilla’s JavaScript and WebAssembly Engine, used in Firefox, Servo and various other projects. It is written in C++, Rust and JavaScript. You can embed it into C++ and Rust projects, and it can be run as a stand-alone shell. It can also be [compiled](https://bytecodealliance.org/articles/making-javascript-run-fast-on

Cheat sheet: JavaScript Array methods

Deriving a new Array from an existing Array:

['■','●','▲'].slice(1, 3)          ⟼ ['●','▲']
['■','●','■'].filter(x => x==='■') ⟼ ['■','■']
    ['▲','●'].map(x => x+x)        ⟼ ['▲▲','●●']
    ['▲','●'].flatMap(x => [x,x])  ⟼ ['▲','▲','●','●']

	from subprocess import run
	import os
	import json
	from datetime import datetime

	# path to input JSON
	in_path = os.path.join(os.environ['HOME'], 'Downloads/notes/source/notes.json')

	# path to output directory. it must exist.
	out_path = os.path.join(os.environ['HOME'], 'Downloads/for-bear')

	<?php

	// Add this to your functions.php for example...

	add_action( 'init', 'rkn_clean_slate__init' );

	/**
	* WP has a lot of initial...err...stuff even with a completely blank theme. Let's remove quite a bit
	* of that.
	*

	/*
	This svelte store is a reference to make super quick live and interactive pieces of code.
	See its announcement at https://www.youtube.com/watch?v=A8jkJTWacow&t=18579s
	*/

	type Options<T> = {
	validator: (data: T) => void;
	};

	export function live<T>(path: string, initialValue: T, options?: Options<T>) {

	This gist aims to show you how to use KV datastore using Cloudflare pages. The reason I created this quick guide is it took
	me almost 2 weeks to get it working, mainly because it is very new and the documentation is not up fully fleshed out yet

	https://developers.cloudflare.com/workers/runtime-apis/kv
	https://developers.cloudflare.com/pages/platform/functions
	https://blog.cloudflare.com/wrangler-v2-beta/

	Steps:

	Install wrangler 2

	sudo yum update

	# Installing ZSH
	sudo yum -y install zsh

	# Check ZSH has been installed
	zsh --version

	# Install "util-linux-user" because "chsh" is not available by default
	# See https://superuser.com/a/1389273/599050