/* eslint-disable */

// Refactor the following code to use the specified ES6 features.
// There are no automated tests.
// To make sure the code still works you can run this file using `node es6.js` from inside `/src`.

//----------------
// const, =>, default parameters, arrow functions default return statements using ()

// var food = 'pineapple';
//
// var isMyFavoriteFood = function(food) {
//   food = food || 'thousand-year-old egg'; //This sets a default value if `food` is falsey
//   return food === 'thousand-year-old egg';
// };
//
// var isThisMyFavorite = isMyFavoriteFood(food);

// ----------------

const food = 'pineapple';

const isMyFavoriteFood = (food = 'thousand-year-old egg') => (food === 'thousand-year-old egg');

const isThisMyFavorite = isMyFavoriteFood(food);

//----------------
//const, =>, class, template literals, enhanced object literals (foo: foo, -> foo,)

// var User = function(options) {
//   this.username = options.username;
//   this.password = options.password;
//   this.sayHi = function() {
//     return this.username + ' says hello!';
//   };
// }
//
// var username = 'JavaScriptForever';
// var password = 'password';
//
// var me = new User({
//   username: username,
//   password: password,
// });

// ----------------

class User {
  constructor(options) {
    this.username = options.username;
    this.password = options.password;
  }
  sayHi() {
    return `${this.username} says hello!`;
  }
}

const username = 'JavaScriptForever';
const pasword = 'password';

const me = new User({
  username,
  password,
});

// ----------------
// let, const, =>, ... (spread operator)

// var addArgs = function () {
//   var sum = 0;
//   for (var i = 0; i < arguments.length; i++) {
//     sum += arguments[i];
//   }
//   return sum;
// };
//
// var argsToCb = function (cb) {
//   var args = Array.prototype.slice.call(arguments);
//   return cb.apply(null, args.splice(1));
// };
//
// var result = argsToCb(addArgs, 1, 2, 3, 4, 5); //result should be 15

// ----------------

const addArgs = (...args) => (args.reduce((memo, val) => (memo + val)));

const argsToCb = (cb, ...args) => (cb(...args));

const result = argsToCb(addArgs, 1, 2, 3, 4, 5);
/* eslint-enable */