Top Answers

1. What's the difference between errors.Wrapf(), errors.Errorf(), and fmt.Errorf()?
   54 votes
2. Why using `chan struct{}` when wait something done not `chan interface{}`?
   42 votes
3. Package name containing hyphen
   30 votes
4. Is there a difference in Go between a counter using atomic operations and one using a mutex?
   24 votes
5. Mocking os.GetEnv("ENV_VAR")
   22 votes