Nicky Meuleman NickyMeuleman

🏎️

When not coding, I'm simracing

NickyMeuleman / fromCSV.js

Created October 5, 2022 21:52

objects to CSV and CSV to objects

	async function fromCSV({ ctx }) => {
	const { filePaths } = await dialog.showOpenDialog({
	filters: [{ name: "Comma seperated values", extensions: ["csv"] }],
	});

	const csv = fs.readFileSync(filePaths[0], { encoding: "utf-8" });
	const lines = csv.split("\n");
	const keys = lines.shift()?.split(",");

	for (const line of lines) {

NickyMeuleman / index.jsx

Created August 22, 2022 15:38

Tailwind animate-ping inline in a button, play once

	<button className="flex content-center items-center justify-center rounded-full border-2 border-transparent bg-sky-800 py-2 px-3 text-base leading-normal text-sky-100 outline-none hover:bg-opacity-80 focus:ring-1 focus:ring-offset-2 active:ring-0 active:ring-offset-0 disabled:cursor-not-allowed disabled:bg-opacity-50">
	<span className="mx-1">Alle</span>
	<span className="relative inline-flex">
	<span className="mr-1 flex rounded-full bg-sky-500 px-2 py-1 text-xs font-bold uppercase">
	{filtercount}
	</span>
	<span
	className="absolute inline-flex h-full w-full animate-ping rounded-full bg-sky-400 opacity-75"
	style={{
	animationIterationCount: 1,

NickyMeuleman / index.html

Created June 4, 2022 20:00

File System Access API append to file

	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<meta http-equiv="X-UA-Compatible" content="IE=edge">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Document</title>
	</head>
	<body>
	<button id="choose-file">choose a file to write to</button>

NickyMeuleman / destructure_array.rs

Created July 22, 2021 15:23

Rust: accessing elements in vectors

	use std::convert::TryFrom;

	fn main() {
	let names = vec!["Daniel", "Max", "Lewis"];

	let [daniel, max, lewis] = <[&str; 3]>::try_from(names).ok().unwrap();

	dbg!(daniel, max, lewis);
	// daniel = "Daniel"
	// max = "Max"

NickyMeuleman / main.rs

Created July 19, 2021 14:31

Rust enum impl block

NickyMeuleman / lib.rs

Created July 17, 2021 18:15

alphametics

	let permutations = (0u8..10u8).permutations(letters.len());
	<!-- 105s -->
	let possible_dicts: Vec<BTreeMap<char, u8>> = permutations
	.filter_map(\|permutation\| {
	let dict: BTreeMap<char, u8> = letters.iter().copied().zip(permutation).collect();
	if dict.iter().any(\|(c, &n)\| leading.contains(c) && n == 0) {
	None
	} else {
	Some(dict)
	}

NickyMeuleman / lib.rs

Created July 8, 2021 15:34

exercism.io Rust nucleotide-count

	use std::collections::HashMap;

	const VALID: [char; 4] = ['A', 'C', 'G', 'T'];

	pub fn count(nucleotide: char, dna: &str) -> Result<usize, char> {
	if !VALID.contains(&nucleotide) {
	return Err(nucleotide);
	}
	match dna.chars().find(\|c\| !VALID.contains(c)) {
	Some(c) => Err(c),

NickyMeuleman / lib.rs

Created July 8, 2021 15:17

Rust .collect() an iterator into a HashMap

	use std::collections::{HashMap, HashSet};

	fn count_occurrences(message: &str) -> HashMap<char, usize> {
	let unique: HashSet<char> = message.chars().collect();
	unique
	.iter()
	.map(\|&c\| (c, message.matches(c).count()))
	.collect()
	}

NickyMeuleman / lib.rs

Created July 3, 2021 14:46

exercism.io isbn-verifier

	/// Determines whether the supplied string is a valid ISBN number
	pub fn is_valid_isbn(isbn: &str) -> bool {
	let numbers: Vec<u32> = isbn
	.chars()
	.filter_map(\|c\| match c {
	'X' if Some('X') == isbn.chars().last() => Some(10),
	_ => c.to_digit(10),
	})
	.collect();
	if numbers.len() != 10 {

NickyMeuleman / lib.rs

Created June 25, 2021 15:06

Check if a number is an Armstrong number

	pub fn is_armstrong_number(num: u32) -> bool {
	let digits: Vec<_> = num
	.to_string()
	.chars()
	.filter_map(\|n\| n.to_digit(10))
	.collect();
	let num_digits = digits.len() as u32;
	num == digits.iter().map(\|n\| n.pow(num_digits)).sum()
	}