eugenserbanescu’s gists

eugenserbanescu / tyre_calculator.js

Created September 12, 2024 17:12

	const mmInOneInch = 25.4;
	const mockRpm = 3000;

	const tyreWidthInMm = 225;
	const tyreHeightInPercentage = 45;
	const tyreRimHeightInInch = 17;

	const finalRatio = 3.38;

	const someRevs = [2000, 2500, 3000, 4500, 5000, 5500];

eugenserbanescu / arrays.js

Last active July 30, 2022 10:27

Javascript array functions

	let list = [1,2,3,4];

	let forEachCalled = 0;
	list.forEach(item => {
	// this one does something for every item in the array
	// and returns the original array
	forEachCalled++;
	});

	const mapped = list.map(item => {

eugenserbanescu / async-mapping.js

Last active April 4, 2019 08:51

async mapping

	async function waitForStuff(i) {
	return new Promise((resolve) => {
	setTimeout(() => resolve(`yay!`), 100)
	})
	}

	async function main() {
	const mapped = Promise.all([1,2,3,4].map(async (item) => {
	const res = await waitForStuff()
	return res

eugenserbanescu / naive even fill to limit

Last active March 7, 2019 15:32

eugenserbanescu / sticky-table.html

Last active November 24, 2018 13:51

A sticky table html & css. Needed for reasons - works in Edge it seems

eugenserbanescu / semicolons.js

Created July 25, 2018 12:42

Two scenarios where semicolons would prevent an error

	try {
	let obj = {a: 0}
	let a = obj
	[0,1,2].forEach(item => console.log(item))
	} catch (e) {
	console.log('First scenario', e) // throws TypeError: Cannot read property 'forEach' of undefined
	}


	try {

eugenserbanescu / get-files-recursive

Created July 18, 2018 13:16

	function getFilesInDirSync(pathToDir, files = []) {
	const dirContents = fs.readdirSync(pathToDir);
	return files.concat(dirContents.map(item => {
	const isDir = fs.statSync(pathToDir + item).isDirectory()
	return isDir ? getFilesInDirSync(`${pathToDir}/{item}`, files) : [`${pathToDir}/{item}`]
	}))
	})

eugenserbanescu / svg-path

Created July 3, 2018 16:31

X-Y svg path mover

	const PAIR_MATCHER = /([A-Z]?)([^A-Za-z,]+),(.*)/
	function moveSvg(path, x=0, y=0) {
	return path.split(' ').map(pair => {
	const matches = pair.match(PAIR_MATCHER)
	return matches === null ?
	pair :
	`${matches[1]}${parseFloat(matches[2]) + x},${parseFloat(matches[3]) + y}`
	}).join(' ')
	}

eugenserbanescu / beak.html

Created June 27, 2018 10:57

eugenserbanescu / fibonacci.js

Last active April 3, 2019 17:02

First stab at Fibonacci

	const fibonacci = (limit, list=[1, 1]) => {
	const currentIndex = list.length - 1
	const newNumber = list[currentIndex - 1] + list[currentIndex]
	if( newNumber >= limit) {
	return list
	} else {
	return fibonacci(limit, list.concat([newNumber]), currentIndex + 1)
	}
	}

Eugen Serbanescu eugenserbanescu