Kyle Cooper WDI Week 2 Assessment

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Congratulations on your second week of WDI!

To help us track your progress from the last week, please answer the following questions to the best of your ability:

1. DOM

# Write a line of code that will create a button:
var button = document.createElement('button);

# Write a line of code that will append that button to the document body:
body.appendChild(button);

# Write a line of code that will give the button a class of 'clicked':
button.setAttribute('class','clicked);

# Write code that will give the button a click handler and log 'hello'
# to the console when it is clicked:
button.onclick = function(event){
  console.log("hello");
}

# Write code that will give the button a click handler and log **this** button 
# object to the console when it is clicked:
button.onclick = function(event){
  console.log(this);
}


# If you type 'this' straight into the console, you will get an object called
# Window. Explain in one sentence what this object is:
'this' refers to the object it is being called in, so when called inside of the console this is only inside of the window.

2. CALLBACKS

# A fellow student shows you this code.  When he runs it, he expects it to
# wait three seconds, then write "Ding!" to the console.  Instead, it writes
# "Ding!" immediately.  Find the bug and fix it.

function writeDing() {
  console.log('Ding!');
}

var dingHandle = setTimeout(function(){ (writeDing();
  }, 3000);

Write your answer here:
3. MISC - ARRAYS AND OBJECTS

# Given the following multi-dimensional array, write the code that will log
# "Eddard" to the console:

var gameOfThrones = [["Joffrey", "Stannis", "Renly"], ["Arya", "Sansa", "Eddard"]];
console.log(gameOfThrones[1][2];

# Given the following object, write the code that will log "Ramsay" to the 
# console:

var gameOfThrones2 = { boltons: ["Roose", "Ramsay"], 
             greyjoys: ["Balon", "Theon"]}
             
console.log(gameOfThrones2.boltons[1]);

# Write the code that will change "Theon" within the gameOfThrones2 object to "Reek":
gameOfThrones2.greyjoys[1] = "Reek";