Skip to content

Instantly share code, notes, and snippets.

View danwdart's full-sized avatar
💻
Available for hire

Dan Dart danwdart

💻
Available for hire
View GitHub Profile
@serras
serras / advent-haskell-2020.md
Created December 15, 2020 09:04
Advent of Haskell 2020

Talking about Toys

Every year Santa 🎅 brings joy (and presents 🎁) to all the kids in the world. Well, not when I was a child! Following the usual Spanish traditions, the Three Reyes Magos brought me presents in their camels 🐫 following the Star 💫 Nowadays, it's Sinterklaas who puts pepernoten in my shoes 👞. Because in fact there's not one, but a group of present-bringing people, distributed across the globe 🌐, each with their own part of the world to cover (or you really thought just one man and eight reindeers could do it all by their own?)

In order to communicate, they need a way to exchange information about presents. Since they are all very wise, they've agreed to use Haskell, so this information is represented using algebraic data types. Here are some types related to building blocks:

data Block = Block BlockBrand String Color
data BlockBrand = LegoKNex
@evanjs
evanjs / linbox.sh
Created July 14, 2020 15:39
winbox script/expression for nix
#!/usr/bin/env nix-shell
#! nix-shell -p wine -i sh
wine ~/bin/winbox.exe
# non nix (dependencies) version
@colemickens
colemickens / amiibo-emulation-with-linux-vm.md
Last active March 23, 2024 03:37
amiibo-emulation-with-linux-vm.md

Easy Amiibo Emulation - https://bit.ly/2z0m09k

(^ that's a short-link to this page, so you can open it in Linux)

Some users are discussing this guide in #hacking on the JoyConDroid Discord: https://discord.gg/SQNEx9v.

DO NOT ask for, or share links to, Amiibo bins in the comments! They will be removed. Thank you for understanding.

(Windows|Linux PC) + JoyControl + Bluetooth = AMIIBO EMULATION

@chrisdone
chrisdone / Intro.md
Last active April 10, 2023 06:33
Statically checked overloaded strings

Statically checked overloaded strings

This gist demonstrates a trick I came up with which is defining IsString for Q (TExp a), where a is lift-able. This allows you to write $$("...") and have the string parsed at compile-time.

On GHC 9, you are able to write $$"..." instead.

This offers a light-weight way to enforce compile-time constraints. It's basically OverloadedStrings with static checks. The inferred return type

@myshov
myshov / function_invocation.js
Last active January 21, 2024 15:14
11 Ways to Invoke a Function
console.log(1);
(_ => console.log(2))();
eval('console.log(3);');
console.log.call(null, 4);
console.log.apply(null, [5]);
new Function('console.log(6)')();
Reflect.apply(console.log, null, [7])
Reflect.construct(function(){console.log(8)}, []);
Function.prototype.apply.call(console.log, null, [9]);
Function.prototype.call.call(console.log, null, 10);
@Avaq
Avaq / combinators.js
Last active May 1, 2024 09:38
Common combinators in JavaScript
const I = x => x
const K = x => y => x
const A = f => x => f (x)
const T = x => f => f (x)
const W = f => x => f (x) (x)
const C = f => y => x => f (x) (y)
const B = f => g => x => f (g (x))
const S = f => g => x => f (x) (g (x))
const S_ = f => g => x => f (g (x)) (x)
const S2 = f => g => h => x => f (g (x)) (h (x))
<?php
function compileCPP(string $sourcePath, string $binaryPath): bool {
$descriptorspec = [
0 => ['pipe', 'r'],
1 => ['pipe', 'w'],
2 => ['pipe', 'w']
];
$cwd = '/tmp';
@naholyr
naholyr / 0.github-backed-comments.md
Last active August 25, 2022 17:44
Git(Hub)-backed comments system

General context

  • A static website using a generator (like Jekyll)
  • Comments are in a folder, one comment = one JSON file (attached to article based on path + filename)
  • website is versionned using git, repository hosted by github (cool for pull-requests)

Posting a new comment

OK here we need some dynamism ;)

@leostratus
leostratus / webkit-pseudo-elements.md
Created September 21, 2012 01:44
Webkit Pseudo-Element Selectors (Shadow DOM Elements)

An ongoing project to catalogue all of these sneaky, hidden, bleeding edge selectors as I prepare my JSConf EU 2012 talk.

Everything is broken up by tag, but within each the selectors aren't particularly ordered.

I have not tested/verified all of these. Have I missed some or got it wrong? Let me know. - A

A friendly reminder that you may need to set this property on your target/selected element to get the styling results you want:

-webkit-appearance:none;

@TooTallNate
TooTallNate / bbs.js
Created March 16, 2012 22:42
Running a node.js REPL over `curl`
/**
* Requires node v0.7.7 or greater.
*
* To connect: $ curl -sSNT. localhost:8000
*/
var http = require('http')
, repl = require('repl')
, buf0 = new Buffer([0])