StarWars3.js

(() => {
  class Person {
    constructor({
      firstname = '',
      lastname = '',
      spaceship = '',
      job = '',
      gender = '',
      retired = false
    } = {}) {
      Object.assign(this, {
        firstname,
        lastname,
        spaceship,
        job,
        gender,
        retired
      });
    }
  }
  const han = new Person({
    firstname: 'Han',
    lastname: 'Solo',
    spaceship: 'Falcon'
  });
  const luke = new Person({
    firstname: 'Luke',
    lastname: 'Skywalker',
    job: 'Jedi'
  });
  const leia = new Person({
    firstname: 'Leia',
    lastname: 'Organa',
    gender: 'female'
  });
  const obi = new Person({
    firstname: 'Obi',
    lastname: 'Wan',
    retired: true
  });
  const yoda = new Person({ lastname: 'Yoda' });
  const people = [
    han,
    luke,
    leia,
    obi,
    yoda,
    luke,
    leia,
    obi
  ];
  const getName = person => person.lastname;
  console.time('engine');
  for (var i = 0; i < 1000 * 1000 * 1000; i++) {
    getName(people[i & 7]);
  }
  console.timeEnd('engine');
})();