Unit 6 - Lists Quiz

How do you create an empty list?

• var my_list = {};

• var my_list = [];

• var my_list = ();

• var my_list = [None];

What will this code print out?

var innerPlanets = ["mercury", "venus", "earth", "mars"];

console.log(innerPlanets[0])

• 0

• "mercury"

• ["mercury", "venus", "earth", "mars"]

• "venus"

wordList is a list of words that currently contains the values ["tree", "rock", "air"]

Which of the following lines will result in the list containing the values ["air", "rock", "air"]

• wordList[0] = wordList[2]

• wordList[2] = wordList[0]

• insertItem(wordList, 0, "air")

• removeItem(wordList,0)

What will be displayed in the console when this program runs?

var inventory = ["key","coin","coin","backpack"];

console.log(inventory[inventory.length-1]);

• coin

• 4

• 3

• backpack

What will be displayed when this program finishes running?

var numbersList = [20, 10, 5]

removeItem(numbersList,1)

insertItem(numbersList, 0, 30)

console.log(numbersList.length)

• 2

• 3

• 4

• 5

What will be displayed when this program finishes running?

var groceryList = ["milk","eggs","cheese"]

appendItem(groceryList , "takis")

insertItem(groceryList ,2,"tortillas")

removeItem(groceryList ,1)

console.log(groceryList)

• ["milk","cheese","takis",2,"tortillas"]

• ["milk","tortillas","takis"]

• ["milk","eggs","tortillas","cheese","takis"]

• ["milk","tortillas","cheese","takis"]