CodeHS 2.10 While Loops

A way to repeat code in your program.

• loop

• condition

• selection

• counter

• fencepost

What lets us repeat code as long as something is true?

• while loop

• iteration

• edge case

• counter

• bagels

What is code that you put inside an if statement or while loop?

• condition

• iteration

• immersion

• fencepost

• counter

What lets us change the flow of the code? (choose three)

• control structure

• if statement

• while loop

• sequence

• counter

What is a problem in your code that only occurs in extreme situations?

• edge case

• iteration

• counter

• while loop

• condition

What is the fencepost problem better known as?

• off-by-one error

• farmer's dilemma

• Duff's device

• iterative design

• counter

What was the last thing Mr. Pavao posted on the #comp-sci-general channel in the Discord server?

• a bitmoji

• an emoji

• a gif

• the answers to this quiz

• a dad joke

How would you describe a while loop?

• Check the condition; if it is true, then run a code block. Otherwise, run a different code block.

• Check whether the condition is true; if it is true, then keep repeating until the condition is false.

• Run a block of code and then check the condition; if the condition is true, then repeat the block of code.

Answer explanation

A `while` loop keeps repeating a block of code as long as the condition evaluates to a true value.

What kind of program structure is a while loop?

• infinite look

• iterative

• sequential

• selection

Why would we use a while loop instead of a for loop?

• we don't know how many times we want to run the loop

• we know how many times we want to run the loop

• It's a structure that is more efficient to code and execute

• it's best practicies