drills-2.6.2.js

function createMyObject() {
  var obj = {
    foo: 'bar',
    answerToUniverse: 42,
    'olly olly': 'oxen free',
    sayHello: function() {
      return 'hello';
    }
  }
  return obj
}

function updateObject(obj) {
  obj.foo = 'foo';
  obj.bar = 'bar';
  obj.bizz = 'bizz';
  obj.bang = 'bang';
  return obj
}

function personMaker() {
  var person = {
    firstName: 'Paul',
    lastName: 'Jones',
    // replace `null` with a function that uses self reference to return
    // full name
    fullName: function() {return this.firstName + ' ' + this.lastName}
  };
  return person;
}

function keyDeleter(obj) {
  delete obj.foo;
  delete obj.bar;
  return obj
}