Ardeshir Eshghi ardeshireshghi

Being in the world

7 followers · 30 following

eArdi
ardeshireshghi.github.io

View GitHub Profile

Recently created

Least recently created

Recently updated

Least recently updated

ardeshireshghi / css-specificity.js

Last active January 25, 2024 00:10

This function takes the CSS selector text and calculates specificity. It does not take into account inline style and important specificity rules and only relies on the `selectorText`

	function updateSpecificity(selector, currentSpecificity) {
	const newSpecificity = [...currentSpecificity];

	if (isSelectorId(selector)) {
	newSpecificity[0] += 1;
	return newSpecificity;
	}

	if (
	isSelectorClass(selector) \|\|

ardeshireshghi / ScoreSortedSet.ts

Last active November 1, 2023 03:37

This is a simple implementation of a sorted set based on score and unique values

	function findScoreIndexOrClosest<T>(
	arr: [score: number, value: T][],
	score: number,
	): [matched: boolean, index: number] {
	if (arr.length === 1) {
	return arr[0][0] === score
	? [true, 0]
	: arr[0][0] > score
	? [false, 0]
	: [false, 1];

ardeshireshghi / consistent-hashing.ts

Created December 16, 2022 01:24

	import { createHash, randomBytes } from "crypto";

	interface INode<T = any> {
	id: number;
	data: Map<string, T>;
	hash: string;
	}

	interface IHashRing {
	nodes: INode<any>[];

ardeshireshghi / random-hex.sh

Created December 15, 2022 20:16

Create a random hex string 8 chars

cat /dev/urandom | head -1 | shasum | awk '{print $1}' | cut -c 1-8

ardeshireshghi / priority-queue.js

Created November 8, 2022 12:37

	function PriorityQueue() {
	this.collection = [];
	}

	PriorityQueue.prototype = {
	enqueue([item, priority]) {
	let indexToBePlacedAt = -1;
	for (let i = 0; i < this.collection.length; i++) {
	const [, itemPriority] = this.collection[i];
	const isNewItemHigherPriority = priority < itemPriority;

ardeshireshghi / app-container.js

Created October 18, 2022 16:29

A very naive solution for Dependency Injection

	function createAppContainer() {
	const bindingsMap = new Map();

	const appContainer = {
	bind(abstractClass, concreteClassOrFn) {
	bindingsMap.set(abstractClass, concreteClassOrFn);
	},

	make(ClassToCreate, ...constructorArgs) {
	const argTypes = ClassToCreate.argTypes \|\| [];

ardeshireshghi / cache.py

Created August 3, 2022 14:58

LRU cache

	'''Cache class for LRU'''

	KEY_NOT_EXIST_VALUE = 'key-not-exist'


	class LRUCache:
	'''
	Least recently used cache
	'''

ardeshireshghi / WorkerPool.ts

Last active February 27, 2022 19:05

	import EventEmitter from 'events';
	import { Worker } from 'worker_threads';

	class CustomWorker extends Worker {
	public isReady: boolean;
	constructor(...args: ConstructorParameters<typeof Worker>) {
	super(...args);
	this.isReady = true;
	}

ardeshireshghi / sidebar-component.js

Last active February 15, 2022 14:14

	/**
	* Sidebar UI component
	*
	* Example:

	const sidebar = new Sidebar({
	direction:
	window.innerWidth <= 400
	? Sidebar.direction.BOTTOM
	: Sidebar.direction.LEFT,

ardeshireshghi / inheritence.js

Created August 24, 2021 09:54

	// Old school classic inheritence

	function Shape(name) {
	this.name = name;
	}

	Shape.prototype.getName = function() {
	return this.name;
	}

NewerOlder