http://www.codequizzes.com/topics/26/quizzes/88

js-quiz-intro-to-objs

What does the following code print to the console?
var person = {
  name: "Joe Camel",
  age: 42,
  status: "dead"
}
console.log(typeof person);
  object

What does the following code print to the console?
var hat = {
  size: "large",
  color: "orange"
}
console.log(hat.size);
  large

What does the following code print to the console.
var teddy_bear = {
  texture: "fluffy"
}
console.log(teddy_bear["texture"]);
  fluffy

What does the following code print to the console?
var fat_joe = {
  crew: "Terror Squad"
}
fat_joe.crew = "something";
console.log(fat_joe.crew);
  something

What does the following code print to the console?
var pen = {};
pen.ink = "blue";
console.log(pen.ink);
  blue

What does the following code print to the console?
var walking_dead = {
  topic: "zombie apocalypse"
}
console.log(walking_dead["main_character"]);
  undefined // we queried a non-existing property from the obj

What does the following code print to the console?
var bottle = {
  contents: function () { return "some fine bubbly" },
  color: "green"
}
console.log(bottle.contents());
  some fine bubbly

What does the following code print to the console?
var yao = {
  self: function () { return this }
}
console.log(yao === yao.self());
  true // self funciton returns this, which is yao

What does the following code print to the console?
var lebron = {
  occupation: "basketball",
  introduction: function () {
    return "My name is LeBron and I play " + this.occupation
  }
}
lebron.introduction();
  My name is LeBron and I play basketball

What does the following code print to the console?
var square = {
  side_length: 4,
  area: function () { 
    return this.side_length * this.side_length;
  }
}
console.log(square.area());
  16

What does the following code print to the console?
var me = {
  first_name: "Matthew",
  last_name: "Powers",
  full_name: function () {
    return this.first_name + " " + this.last_name;
  }
}
console.log(me.full_name());
  Matthew Powers

What does the following code print to the console?
var mug = {
  capacity: "10 fluid ounces",
  customer_message: function (desired_size) {
    if (desired_size > 10) { return "This mug is not large enough for you" };
  }
}
console.log(customer_message(13));
  customer_message not defined // it's w/in mug which we didnt call. if we wrote console.log(mug.customer_message(13)); it would work

What does the following code print to the console?
function global_function () { return "I can be called anywhere" };
var an_obj = {
  something: global_function
}
console.log(an_obj.something());
  I can be called anywhere

What does the following code print to the console?
var person = {
  age: 32,
  address: {
    city: "New York",
    state: "NY"
  }
}
console.log(person.address.city);
  New York

What does the following code print to the console?
var golf = {
  type: "sport",
  clubs: {
    high_end: "taylor made",
    low_end: "rusty basement clubs"
  }
}  
golf.clubs.high_end = "callaway";
console.log(golf.clubs.high_end);
  callaway

What does the following code print to the console?
var ideal_scene = {
  status: "chillin'",
  location: "somewhere with good waves",
  thoughts: "bling bling"
}
delete ideal_scene.thoughts
console.log(ideal_scene.thoughts);
  undefined

Describe the value that the zombie variable is assigned to.
var zombie = new Object();
  zombie is equal to {}. between those curly braces is where the properties of the variable would go.

What does the following code print to the console?
var game = { title: "tic tac toe" };
var same_game = { title: "tic tac toe" };
console.log(game === same_game );
  false // bc they are not the same object

What does the following code print to the console?
var lyric = { lyric: "right now, aight" };
console.log(lyric === lyric);
  because lyric IS equal to lyric. lyric.lyric is not the same as lyric, though.

What does the following code print to the console?
var ruff_ryders = {
  dmx: {
    birthplace: "Mount Vernon, NY"
  }
}
console.log(ruff_ryders.lox.birthplace);
  Cannot read property 'birthplace' of undefined

What does the following code print to the console?
var ruff_ryders = {
  dmx: {
    birthplace: "Mount Vernon, NY"
  }
}
console.log(ruff_ryders.lox && ruff_ryders.lox.birthplace);
  undefined

What does the following code print to the console?
var a = {
  x: "y"
}
console.log("x" in a);
  true

What does the following code print to the console?
var abc = {
  zz: "ll"
}
console.log(abc.hasOwnProperty("zz"));
  true

Add a real_name property to the following dmx object with the value "Earl Simmons".
var dmx = {
  occupation: "rapper"
}
  dmx.real_name = "Earl Simmons";

Add a circumference method to the following circle object that returns the circumference of the circle (Pi equals Math.PI).
var circle = {
  radius: 10
}
  circle.circumference = function() {
    return this.radius * Math.PI * 2;
  }