solution-objects-this-chuck.js

// TODO: write the methods getAge, addFriend and getRandomFriend

const chuck = {
  firstName: 'Chuck',
  lastName: 'Norris',
  birthDate: new Date('1940-03-10'),
  friends: [
    'Alvaro',
    'Luis'
  ],
  displayInfo() {
    console.log(
      `My name is ${this.firstName} ${this.lastName} and I have ${this.friends.length} friends.`
    );
  },
  getAge() {
    let age = Math.floor((new Date() - this.birthDate) / 1000 / 60 / 60 / 24 / 365.25);
    return age;
  },
  addFriend(name) {
     this.friends.push(name);
  },
  getRandomFriend() {
    let randomIndex = Math.floor(Math.random() * this.friends.length);
    return this.jokes[randomIndex];
  }
};

chuck.displayInfo();

console.log('getAge', chuck.getAge()); // Should return 80 if you are in 2020

chuck.addFriend('Jorge');
console.log('getRandomFriend', chuck.getRandomFriend());
chuck.addFriend('Helena');
console.log('getRandomFriend', chuck.getRandomFriend());
chuck.addFriend('Manish');
console.log('getRandomFriend', chuck.getRandomFriend());

chuck.displayInfo();