Python Loop Control with break and continue

All flashcards

What does break do inside a loop?

It immediately exits the nearest enclosing for or while loop. Execution resumes after that loop.

What does continue do inside a loop?

It skips the rest of the current iteration and proceeds to the next iteration.

When is break useful in a search?

When the target has been found and checking more items is unnecessary.

How can break stop a while True loop?

Use a reachable condition inside the loop that executes break when the loop should stop.

What should you check when using continue in a while loop?

Make sure necessary updates still occur so the loop can reach its stopping condition.

Quiz questions

1. What does a break statement do when it executes inside nested loops?Answer: It exits the nearest enclosing loop, then execution continues after that loop.
2. What happens after continue executes inside a loop?Answer: The rest of the current iteration is skipped, and the loop proceeds to its next iteration.
3. A Python loop scans a string character by character and should stop after finding a space. Which statement should it use after recording the match?Answer: Use break to exit the loop after the space is found.
4. What does this code print? ```python counter = 1 while True: if counter >= 10: break print(counter) counter += 1 ```Answer: The integers from 1 through 9.
5. What does this code print? ```python for number in range(6): if number % 2 == 0: continue print(number) ```Answer: The integers 1, 3, and 5.