Programming Fundamentals Quiz

How can we improve the following program?

• Break down this program into more functions

• Use a for loop to repeat the move command

• Use a while loop to repeat the move command

• Fix the indentation of this program

In the following code below from the Cleanup Karel example, what is the purpose of If Statement #2?

• To move the last time

• To pick up the ball that is in the last spot

• To pick up the ball that is in the last spot, if there is one

• To take the ball from all of the positions that have a ball on them

What is the purpose of using a for loop in code?

• To do something if a condition is true

• To do something while a condition is true

• To repeat something a fixed number of times

• To make programs run faster

What makes the following command an invalid Karel command?

turnleft();

• It should end in a colon rather than a semicolon

• The l should be a capital L

• It should start with a capital T

• This command is correct

Which of the following is the correct way to define a turnRight function in Karel?

• function turnRight() {

  turnLeft();

  turnLeft();

  turnLeft();

  }

• function turnRight() { turnRight(); turnRight(); turnRight(); }

• function turnRight {

  turnLeft();

  turnLeft();

  turnLeft();

  }

• turnRight function() {

  turnLeft();

  turnLeft();

  turnLeft();

  }

Why do we use functions in Karel programs?

• Break down our program into smaller parts

• Avoid repeating code

• Make our program more readable

• All of the above

What’s wrong with this code?

• The go function is defined twice

• go is not a command that Karel understands

• The go function has a syntax error

• The go function is called twice

How many total times will Karel move in this program?

• 1

• 5

• 6

• 7

What is the proper format for a single line comment in Karel?

• # This is a comment

• // This is a comment

• /* This is a comment

• This is a comment.

A store has 20 apples in its inventory. How can you store this information in a JavaScript variable?

• var numApples == 20;

• 20 = numApples;

• var numApples = 20;

• var num apples = 20;