responses for codequiz 4: http://www.codequizzes.com/topics/26/quizzes/88

quiz4.js

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


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


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


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


What does the following code print to the console?
var walking_dead = {
  topic: "zombie apocalypse"
}
console.log(walking_dead["main_character"]);
ans: undefined


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


What does the following code print to the console?
var yao = {
  self: function () { return this }
}
console.log(yao === yao.self());
ans: true


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();
ans: '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());
ans: 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());
ans: 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));
ans: ReferenceError: customer_message is not defined


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());
ans: 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);
ans: 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);
ans: 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);
ans: undefined


Describe the value that the zombie variable is assigned to.
var zombie = new Object();
ans: zombie is assigned to an empty object. so zombie = {};


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 );
ans: false


What does the following code print to the console?
var lyric = { lyric: "right now, aight" };
console.log(lyric === lyric);
ans: true


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


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


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


Add a real_name property to the following dmx object with the value "Earl Simmons".
var dmx = {
  occupation: "rapper"
}
ans: 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
}
ans: circle.circumference = function(){ return 2 * Math.PI * this.radius };