Karel's For Loops and Comments DRILL

What is the purpose of a for loop in Karel the Dog's programming environment?

• To repeat a set of commands a specific number of times

• To make Karel move in random directions

• To stop Karel from moving

• To change Karel's color

Which of the following is a correct way to write a comment in CodeHS?

• `// This is a comment`

• `/* This is a comment */`

• `# This is a comment`

• ``

In Karel's world, how would you use a for loop to make Karel move forward 5 times?

• `for (let i = 0; i < 5; i++) { move(); }`

• `repeat(5) { move(); }`

• `while (frontIsClear()) { move(); }`

• `if (frontIsClear()) { move(); }`

Why is it important to use comments in your code?

• To make the code run faster

• To help others understand what the code does

• To make the code look longer

• To confuse other programmers

Consider the following code snippet in Karel's world: for (let i = 0; i < 3; i++) { move(); putBall(); } ``` What will Karel do after this code is executed?

• Move forward 3 times and put down 3 balls

• Move forward 6 times and put down 3 balls

• Move forward 3 times and put down 6 balls

• Move forward 6 times and put down 6 balls