airbnb-sample.js

var foo = 1;
var bar = foo;

bar = 9;

function doStuff() {
  var fullName;
  var item = {};
  var items = [];

  items.push(item);
  itemsCopy = items.slice();
  
  if (!itemsCopy.length) {
    return;
  }
  
  if (item.name === 'Bob') {
    fullName = 'Bob ' + items[0];
  }
}

var errorMessage = 'This is a super long error that was thrown because ' +
  'of Batman. When you stop to think about how Batman had anything to do ' +
  'with this, you would get nowhere fast.';
  
var test;
var currentUser = {
  jedi: true,
  isGreat: function () {
    return false;
  },
  
  'creative-thinker': false,
};

if (currentUser) {
  var isJedi = currentUser.jedi;
  
  test = function test(prop) {
    console.log(isJedi);
    console.log(currentUser[prop]);
  };
  
  if (currentUser.name !== 'Bob') {
    console.log(currentUser.name);
  }
}

(function(age) {
  var name = 'Skywalker';
  var hasAge = !!age;
  
  return name;
})(12);

// Can use constructor function or object.create
function Person(name) {
  var _this = this;
  this._firstName = name;
}

Person.prototype.setAge = function(age) {
  this._age = age;
};

Person.prototype.getAge = function() {
  return this._age;
};

Person.prototype.toString = function toString() {
  return 'Jedi - ' + this.getAge();
};




// es6
let count = 1;
const b = 2;

const items = [];
const itemsCopy = [...items];

const atom = {
  value: 1,

  addValue(value) {
    return atom.value + value;
  },
};

function getFullName({ firstName, lastName }) {
  return `${firstName} ${lastName}`;
}

const [first, second] = arr;