CodeHS Unit 1 Quiz

Which of these is a valid Karel command?

• A) move;

• B) MOVE

• C) move();

• D) move()

If Karel is facing North and the code runs; which direction is Karel facing now? turnLeft(); turnLeft();

• North

• South

• East

• West

How many times should Karel turn left in order to turn right?

• 4

• 2

• 1

• 3

What can be used to teach Karel to turn right?

• Variable

• Function

• Dog Treats

• Karel can already turn right.

Which function will teach Karel how to spin in a circle one time?

• function spin() { turnRight();}

• function spin() { turnLeft(); turnLeft(); turnLeft(); turnLeft();}

• function spin() { turnLeft(); turnLeft();}

• function spin() { move(); move(); move(); move();}

How many times should the start function be defined in a program?

• 1

• 2

• 0

• However many you would like

Why do we use functions in programming?

• Break down our program into smaller parts

• Avoid repeating code

• Make our program more readable

• All of the above

What is a code comment?

• A) A way to teach Karel a new word

• B) A message to your teacher in code

• C) A way to give notes to the reader to explain what your code is doing

• D) A place to write whatever you want in your code

What is the BEST way for Karel to move 10 times?

• move(); move(); move(); move(); move(); move(); move(); move(); move(); move;

• move(10);

• move10();

• for (var i = 0; i < 10; i++) { move(); }

Why do we use if statements in JavaScript?

• To do something only if a condition is true

• To break out of some block of code

• To repeat something for a fixed number of times

• To do something while a condition is not true