Design Patterns · Junior · Question 59 of 75

What should you do with dead code (unused functions, unreachable branches)?

✓Correct answer: Delete it - version control keeps the history if it's ever needed
2Comment it out "just in case"
3Leave it; it doesn't affect anything

Explanation

Dead code confuses readers, gets "maintained" for nothing and can be bundled to users.

Further reading

Refactoring.Guru: Dead Code ↗

Test yourself

Take the Design Patterns · Junior quiz: questions and options are shuffled, and you get a review of your mistakes at the end.