CodeHS Programming Review

Front

Which of the following commands is a valid Karel command? move, move;, move();, move()

Back

move();

Front

Why is the following command an invalid Karel command? turnleft();

Back

The l should be a capital L

Front

Which of the following is the correct way to define a turnRight function in Karel? Options: function turnRight() { turnLeft(); turnLeft(); turnLeft(); }, function turnRight() { turnRight(); turnRight(); turnRight(); }, function turnRight { turnLeft(); turnLeft(); turnLeft(); }, turnRight function() { turnLeft(); turnLeft(); turnLeft(); }

Back

function turnRight() { turnLeft(); turnLeft(); turnLeft(); }

Front

Why do we use functions in Karel programs?

Back

Break down our program into smaller parts, Avoid repeating code, Make our program more readable, All of the above

Front

If Karel starts at Street 1 and Avenue 1, facing East, where will Karel be, and what direction will Karel be facing after running the following code? (Assume the world is 10x10 in size)

Back

Street 1, Avenue 3, Facing North

Front

Karel starts at Street 1 and Avenue 1, facing East. After calling the stairStep function twice, where will Karel be and what direction will Karel be facing?

Back

Street 3, Avenue 3, Facing East

Front

In this code, how many times is the dance function called and how many times is it defined? Options: Called 1 time, defined 1 time; Called 1 time, defined 3 times; Called 3 times, defined 1 time; Called 3 times, defined 3 times

Back

Called 3 times, defined 1 time

Front

What’s wrong with this code?

Back

The go function has been defined twice

Front

How many total times will Karel move in this program?

Back

6

Front

What is wrong with this for loop? for (var i = 0, i < 10, i + 1) { move(); } I. The for loop uses commas instead of semicolons II. It should say i++ instead of i + 1

Back

I and II