Object Drills

Deleting Keys

function keyDeleter(obj) {

  delete obj.foo;
  delete obj.bar;
  return obj;
}


var sampleObj = {
  foo: 'foo',
  bar: 'bar',
  bizz: 'bizz',
  bang: 'bang'
};

Object Creator

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

Object Updater

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

Self Reference

function personMaker() {
  const 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;
}