MarcoWorms

const R = new LaRamda()

/**
 * A subset of custom implementations of functions from
 * the Ramda library. (all in Lamda form)
 * - thanks to @xgrommx for uniq, intersection, where, evolve,
 *   applySpec, defaultTo, both, either, cond, zipWith
 */
function LaRamda () {
  const I = x => x

MarcoWorms

Imutabilide

Marco Guaspari Worms - Pagar.me & Catnigiri

// Jupyter notebook é massa
{
 var obj = {

MarcoWorms

alias fuck-docker docker-compose down --remove-orphans; and docker rm $(docker ps -a -q) -f; and docker containers prune; and docker system prune

MarcoWorms

JS native immutable array methods

Reduced from https://gist.github.com/rauschma/f7b96b8b7274f2e2d8dab899803346c3

Methods

concat(...items: (T | Array<T>)[]): T[] ^ES3

Returns a new array that is the concatenation of this and all items. Non-array parameters are treated as if they were arrays with single elements.

MarcoWorms

const thisIsADeck = [
  'this is a card',
  3464562456, // this is also a card,
  { attack: `i'm a property of a card!` }, // another card
  [
   `I'm an element inside a card.`,
   `I'm not a card because I'm not in the root level`,
   `The card in this case is the whole array containing these phrases`,
  ],
]

MarcoWorms

const thisIsADeck = [
  'this is a card',
  3464562456, // this is also a card,
  { attack: `i'm a property of a card!` }, // another card
  [
   `I'm an element inside a card.`,
   `I'm not a card because I'm not in the root level`,
   `The card in this case is the whole array containing these phrases`,
  ],
]

MarcoWorms

const deck = [
  { name: 'Fireball', damage: 6, cost: 2 },
  { name: 'Thunderstorm', damage: 10, cost: 3 },
  { name: 'Ice Razors', damage: 30, cost: 7 },
]

MarcoWorms

const { without } = require('ramda')

const card = deck[0] // 1. Card
const newDeck = without([card], deck) // 2. Remaining deck

MarcoWorms

const without = (element, array) => array.filter(e => e !== element)
// Watch out because on this one the "element" is not an array like the Ramda function.

MarcoWorms

const draw = (cardPicker, deck) => {
  // 1. We want to know what card we drew
  const card = cardPicker(deck)
  // 2. We want the new deck without the drawn card
  const newDeck = without(card, deck)
  return { card, newDeck }
}