optional_chaining.js

// OPTIONAL CHAINING EXAMPLE
let character = {
  name: 'Dean Winchester',
  age: 34,
  car: 'Chevy Imala (Baby)',
  enemy_demons: [ 'Abadon', 'Yellow Eyes', 'Crowley' ],
  enemy_angels: [ 'Zacharia', 'Michael', 'Lucifer' ],
  family: {
    mother: 'Mary',
    father: 'John',
    brother: 'Sam',
  }
}

const friend = character.friend?.name;

console.log(friend) // undefined