ardeshireshghi

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

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

  if (
    isSelectorClass(selector) ||

ardeshireshghi

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

function animateScrollToEl(targetEl, duration, easing) {
  var easings = {
    easeInOutExpo: function (t, b, c, d) {
      t /= d/2;
      if (t < 1) return c/2 * Math.pow( 2, 10 * (t - 1) ) + b;
      t--;
      return c/2 * ( -Math.pow( 2, -10 * t) + 2 ) + b;
    }
  };

ardeshireshghi

import { createHash, randomBytes } from "crypto";

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

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

ardeshireshghi

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

ardeshireshghi

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

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

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

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

ardeshireshghi

'''Cache class for LRU'''

KEY_NOT_EXIST_VALUE = 'key-not-exist'


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

ardeshireshghi

import psycopg2

connection = psycopg2.connect("dbname=name-of-db user=prod password=xxxx host=somehost sslmode=verify-full sslrootcert=/usr/local/share/ca-certificates/ca-2019-root.pem")

ardeshireshghi

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;
  }