enhancedObjectLiteral.md

[JavaScript] - ES6 Enhanced Object Literal

SOURCE

const weekdays = ['mon', 'tue', 'wed', 'thu', 'fri', 'sat', 'sun'];

const openingHours = {
  // Object keys can be dynamically assigned in ES6 by placing an expression in square brackets []
  [weekdays[3]]: { 
    open: 12,
    close: 22,
  },
  [weekdays[4]]: {
    open: 11,
    close: 23,
  },
  [`day-${2 + 4}`]: {
    open: 0,
    close: 24,
  },
};

const restaurant = {
  name: 'Classico Italiano',
  location: 'Via Angelo Tavanti 23, Firenze, Italy',
  categories: ['Italian', 'Pizzeria', 'Vegetarian', 'Organic'],
  starterMenu: ['Focaccia', 'Bruschetta', 'Garlic Bread', 'Caprese Salad'],
  mainMenu: ['Pizza', 'Pasta', 'Risotto'],

  // ES6 enhanced object literal
  openingHours,

  // function is also shorter
  order(starterIndex, mainIndex) {
    return [this.starterMenu[starterIndex], this.mainMenu[mainIndex]];
  },
};