chrisdothtml

[
  {
    "key": "cmd+y",
    "command": "redo",
    "when": "editorTextFocus && !editorReadonly"
  },
  {
    "key": "shift+alt+down",
    "command": ""
  },

chrisdothtml

{
  "iterations": 100
}

chrisdothtml

/**
 * Generate Set of prime numbers up to `maxPrime`
 * https://en.wikipedia.org/wiki/Sieve_of_Eratosthenes
 * 
 * @param {Number} maxPrime
 * @returns {Set}
 */
function getPrimes (maxPrime) {
  const sieve = new Map
  const result = new Set

chrisdothtml

/**
 * Generate fibonacci sequence up to `maxNum`
 * https://en.wikipedia.org/wiki/Fibonacci_number
 *
 * @param {number} maxNum
 */
function fibonacci (maxNum) {
  const result = [0, 1]
  let newNum, index

chrisdothtml

/**
 * Generate Recamán sequence up to `maxNum`
 * https://youtu.be/FGC5TdIiT9U
 *
 * @param {Number} maxNum
 * @returns {Set}
 */
function recaman (maxNum) {
  const result = new Set([0])
  let current, hop

chrisdothtml

/**
 * Get all factors of a number
 * 
 * @param {Number} num
 * @returns {Set}
 */
function getFactors (num) {
  const numRoot = Math.sqrt(num)
  const isEven = num % 2 === 0
  const incr = isEven ? 1 : 2

chrisdothtml

/**
 * Indicates whether the sum of the factors of a number
 * are equal to the number
 * https://en.wikipedia.org/wiki/Perfect_number
 * 
 * @param {Number} num
 * @returns {Boolean}
 */
function isPerfectNumber (num) {
  const numRoot = Math.sqrt(num)

chrisdothtml

/*
 * Calculate the persistence of a number;
 * based on Numberphile video:
 * https://www.youtube.com/watch?v=Wim9WJeDTHQ
 */
function calculatePersistence (num) {
  let result = 1
  while ((num = multiplyItems(getDigits(num))) > 0)
    result++
  return result

chrisdothtml

function getPipedInput () {
  return new Promise(resolve => {
    let result = ''

    process.stdin.resume()
    process.stdin.setEncoding('utf8')
    process.stdin.on('data', chunk => (result += chunk))
    process.stdin.on('end', () => resolve(result))
  })
}

chrisdothtml

Setup

1. Download script

curl https://gist.githubusercontent.com/chrisdothtml/509fdbe3bfec1a11bbc346e4b44c3604/raw/switch-npmrc.js > "$HOME/switch-npmrc.js"

2. Add alias to .bash_profile or similar