Starter files for Class Exercise

burger.js

class Burger {
  #isMeatless = false;
  #isCooked = false;
  toppings = [];

  constructor(_isMeatless = false, ...toppings) {
    this.#isMeatless = _isMeatless;
    this.toppings = toppings;
  }

  get toppings() {
    return [...toppings];
  }

  isVeggie() {
    return this.#isMeatless;
  }

  static cookBurger(burger) {
    return new Promise((resolve, reject) => {
      setTimeout(() => {
        burger.#isCooked = true;
        console.log('burger is cooked');
        resolve();
      }, 2000);
    });
  }
}

export default Burger;

//Example usage of the class.
let b = new Burger(false, 'cheese', 'lettuce', 'tomato', 'onion');
console.log(b.toppings);
console.log(b.isVeggie());
Burger.cookBurger(b);

fish.js

class Fish {
  #_color;
  #_numFins;

  constructor(_color, _numFins = 3) {
    this.#_color = _color;
    this.#_numFins = _numFins;
  }

  get color() {
    return this.#_color;
  }

  get numberOfFins() {
    return this.#_numFins;
  }

  swim(_speed) {
    if (isNaN(_speed)) throw Error('Speed must be numeric');
    let output = Array(_speed).fill('Swish').join(', ');
    console.log(output);
    return output;
  }
}

export default Fish;

//Example usage of the class
let jaws = new Fish('grey', 3);
console.log(jaws.color);
console.log(jaws.numberOfFins);
jaws.swim(8);

person.js

class Person {
  #firstName;
  #lastName;

  constructor(_first, _last) {
    this.#firstName = _first;
    this.#lastName = _last;
  }

  get name() {
    return `${this.#firstName} ${this.#lastName}`;
  }

  talk(words, element) {
    //element is the elementReference or id of an element
    console.log(words);
    let ref;
    if (typeof element == 'string') {
      ref = document.querySelector(element);
    } else {
      if (typeof HTMLElement != 'undefined' && element instanceof HTMLElement) {
        ref = element;
      }
    }
    if (ref) ref.textContent = words;
  }
}

export default Person;

//Example usage of class
let bob = new Person('Bobby', 'Singer');
console.log(bob.name);
bob.talk(`Hello my name is ${bob.name}.`);

robot.js

class Robot {
  #_color;
  #isShiny = false;
  purpose = '';

  constructor(_color, _isShiny, _purpose) {
    this.#_color = _color;
    this.#isShiny = _isShiny;
    this.purpose = _purpose;
  }

  get color() {
    let str = `The robot is ${this.#_color}`;
    str += this.#isShiny ? ' and shiny.' : ' but not shiny.';
    return str;
  }

  talk(element) {
    //element is the elementReference or id of an element
    console.log('Beep');
    let ref;
    if (typeof element == 'string') {
      ref = document.querySelector(element);
    } else if (typeof HTMLElement != 'undefined' && element instanceof HTMLElement) {
      ref = element;
    } else {
      console.log('Beep');
    }
    if (ref) ref.textContent = 'Beep';
  }
}

export default Robot;

//Example usage of class
let marvin = new Robot('white', true, 'being depressed');
console.log(marvin.color);
console.log(marvin.purpose);
marvin.talk();