Marcell Mazuh

👨‍💻

Code Summoner

Frustrated inventor.

Mazuh / chained-promises.js

Created July 31, 2024 12:47

Chained promises example

	const delayedPrint = (content) => new Promise(r => setTimeout(() => r() & console.log(content), 1000));

	await ["João", "Maria", "todo mundo"].reduce(
	(chained, n) => chained.then(() => delayedPrint(`Oi, ${n}!`)),
	Promise.resolve()
	);

Mazuh / balanced_octopus.ex

Created April 22, 2024 16:15

Checa se delimitadores em uma string estão balanceados.

	defmodule BalancedOctopus do
	@opening_to_closing %{"(" => ")", "[" => "]", "{" => "}"}
	@closing_to_opening %{")" => "(", "]" => "[", "}" => "{"}

	def balanced?(text, stack \\ [])
	def balanced?("", []), do: true
	def balanced?(_text, :error), do: false
	def balanced?("", _pending_stack), do: false

	def balanced?(text, stack) do

Mazuh / equals-pm.ex

Created April 16, 2024 12:06

Elixir example of pattern matching for equal values

	defmodule Comp do
	def equals?(same, same), do: true
	def equals?(one, another), do: false
	end

	IO.inspect Comp.equals?(4, 2)
	# false

	IO.inspect Comp.equals?(42, 42)
	# true

Mazuh / maybe.py

Created January 23, 2024 03:14

Maybe in Python.

	class Maybe:
	condition_fn = None
	then_fn = None
	otherwise_fn = None

	def __init__(self, condition_fn):
	self.condition_fn = condition_fn

	def then(self, then_fn):
	self.then_fn = then_fn

Mazuh / opfs.ts

Created January 23, 2024 00:09

Basic OPFS adapter in TS.

	interface OpfsAdapter<T> {
	persist: (data: T) => Promise<void>;
	retrieve: () => Promise<T \| null>;
	}

	export async function makeOpfsAdapter<T>(filename: string): Promise<OpfsAdapter<T>> {
	const opfsRoot = await navigator.storage.getDirectory();

	const directoryHandle = await opfsRoot.getDirectoryHandle("my_pretty_stuff", {
	create: true,

Mazuh / .zshrc

Created August 13, 2023 19:45

"NVM use" after entering each directory

	# Run 'nvm use' automatically every time there's
	# a .nvmrc file in the directory. Also, revert to default
	# version when entering a directory without .nvmrc
	#
	enter_directory() {
	if [[ $PWD == $PREV_PWD ]]; then
	return
	fi

	PREV_PWD=$PWD

Mazuh / find_node_modules.sh

Created July 11, 2022 12:03

Scripts to clean multiple node_modules recursively.

find . -name 'node_modules' -type d -prune

Mazuh / isp.tsx

Created February 28, 2021 20:42

	function getBgColor(variant) {
	if (variant === "primary") {
	return "blue";
	}

	if (variant === "danger") {
	return "red";
	}

	if (variant === "warning") {

Mazuh / liskov-abuse.tsx

Last active April 4, 2021 20:51

	interface User {
	name: string;
	age: number;
	}

	interface AuthorizedUser extends User {
	token: string;
	}

	type UserDisplayProps = { user: User };

Mazuh / single-responsibilty-broken.js

Created February 28, 2021 01:38

	import { useState } from "react";

	export default function App() {
	const [people, setPeople] = useState([]);

	const handleSubmit = (event) => {
	event.preventDefault();
	setPeople([...people, event.target.person.value]);
	event.target.reset();
	};