// Map, filter, and reduce in Swift, explained with emoji
// https://gist.github.com/AccordionGuy/61716adbf706801e2a496a12ff19526e
// http://devhumor.com/media/map-filter-reduce-explained-with-emoji-s
// http://unicodey.com/emoji-data/table.htm

// Map
function cook(item) {
  let cookupTable = {
    '🐮': '🍔', // Cow face -> burger
    '🐄': '🍔', // Cow -> burger
    '🐂': '🍖', // Ox -> meat on bone
    '🐷': '🍖', // Pig face -> meat on bone
    '🐽': '🍖', // Pig nose -> meat on bone
    '🐖': '🍖', // Pig -> meat on bone
    '🐑': '🍖', // Sheep -> meat on bone
    '🐐': '🍖', // Goat -> meat on bone
    '🐔': '🍗', // Chicken -> poultry leg
    '🦃': '🍗', // Turkey -> poultry leg
    '🐸': '🍗', // Frog  -> poultry leg (no frog leg emoji...yet)
    '🐟': '🍣', // Fish -> sushi
    '🐠': '🍣', // Tropical fish -> sushi
    '🐡': '🍣', // Blowfish -> sushi
    '🐙': '🍣', // Octopus -> sushi
    '🍠': '🍟', // (Sweet) potato -> French fries
    '🌽': '🍿', // Corn -> popcorn
    '🌾': '🍚', // Rice -> cooked rice
    '🍓': '🍰', // Strawberry -> shortcake
    '🍂': '🍵', // Dried leaves -> tea
  };
  if (cookupTable[item] != undefined) {
    return cookupTable[item];
  } else {
    return '🍽'; // Empty plate
  }
}

let cookedFood = ['🐮', '🍠', '⚽️', '🐔', '🌽'].map(item => cook(item));
console
  .log(cookedFood) // ["🍔", "🍟", "🍽", "🍗", "🍿"]

  [('🌽', '🐮', '🐔')].map(item => cook(item)); // [ 🍿 , 🍔 , 🍳 ]

// Filter
function isVegetarian(item) {
  let vegetarianDishes = [
    '🍟', // French fries
    '🍿', // Popcorn
    '🍚', // Cooked rice
    '🍰', // Shortcake
    '🍵', // Tea
  ];
  return vegetarianDishes.includes(item);
}

let meatFree = ['🍔', '🍖', '🍟', '🍽', '🍗', '🍿', '🍰'].filter(item => isVegetarian(item));
console
  .log(meatFree) // ["🍟", "🍿", "🍰"]

  [('🍿', '🍔', '🍳')].filter(item => isVegetarian(item)); // [🍿, 🍳]

// Reduce
function eat(previous, current) {
  let qualifyingFood = [
    '🍔', // Burger
    '🍖', // Meat on bone
    '🍗', // Poultry leg
    '🍣', // Sushi
    '🍟', // French fries
    '🍿', // Popcorn
    '🍚', // Cooked rice
    '🍰', // Shortcake
  ];
  if ((previous == '' || previous == '💩') && qualifyingFood.includes(current)) {
    return '💩'; // Poop
  } else {
    return '';
  }
}

let aftermath = ['🍔', '🍟', '🍗', '🍿'].reduce((previous, current) => eat(previous, current));
console
  .log(aftermath) // "💩"

  [('🍿', '🍳')].reduce((previous, current) => eat(previous, current)); // 💩

// http://nomadev.com.br/javascript-emoticons-emojis/
// :man-heart-man:
// :man-woman-boy:
// :man-woman-girl-boy:
'👨‍❤️‍👨'.replace(/👨/, 'JS'); // "JS‍❤️‍👨"
'👨‍❤️‍👨'.match(/./gu); // ["👨", "‍", "❤", "️", "‍", "👨"]
'👩‍❤️‍👩'.match(/./gu); // ["👩", "‍", "❤", "️", "‍", "👩"]
'👨‍❤️‍👨'.replace(/👨/, '👩'); // "👩‍❤️‍👨"
'👨‍❤️‍👨'.replace(/👨/g, '👩'); // "👩‍❤️‍👩"
'👨‍👩‍👧‍👦'.match(/./gu); // ["👨", "‍", "👩", "‍", "👧", "‍", "👦"]
'👨‍👩‍👧‍👦'.replace(/👨/g, '👩'); // "👩‍👩‍👧‍👦"