MoienTajik

Regex For Iranian Phone Numbers

This regex supports all kinds of Iranian mobile phone numbers :

^(\+98|0)?9\d{9}$

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bradtraversy

Node.js Deployment

Steps to deploy a Node.js app to DigitalOcean using PM2, NGINX as a reverse proxy and an SSL from LetsEncrypt

1. Sign up for Digital Ocean

If you use the referal link below, you get $10 free (1 or 2 months) https://m.do.co/c/5424d440c63a

2. Create a droplet and log in via ssh

I will be using the root user, but would suggest creating a new user

ali-master

// Find theoretical sum of the consecutive numbers using a variation of Gauss Sum.
// Formula: [(N * (N + 1)) / 2] - [(M * (M - 1)) / 2];
// N is the upper bound and M is the lower bound

function missingNumber(n) {
    let upperBound = 0;
    let lowerBound = 99999999;
    let sum = 0;

    for (let i = 0; i < n.length; i++) {

ali-master

/**
 * Redux
 * - getState()
 * - subscribe()
 * - dispatch() -> ui -> state
 * - combineReducer
 *
 *
 * - replaceReducer
 * - injectReducer

arvinall

function createPromise () {
  let resolve, reject

  // eslint-disable-next-line promise/param-names
  const promise = new Promise((...args) => ([resolve, reject] = args))

  return { promise, resolve, reject }
}

const remove = (a, y) => (