Null integer silently becomes zero
Review this Go code computing an average rating from rows.
What a strong answer looks like
Separate real bugs from style. Rank issues by severity, point at the root cause rather than the symptom, and suggest a concrete fix, specific and kind.
0:00 of about 25 min
Mark a line and say what kind of problem it is.0 findings
1type Review struct{ Rating sql.NullInt64 }
2
3func avgRating(reviews []Review) float64 {
4 var sum int64
5 for _, r := range reviews {
6 sum += r.Rating.Int64
7 }
8 return float64(sum) / float64(len(reviews))
9}
Which questions mattered is sealed until you submit. Telling you now would just be handing over the edge cases.
Run or narrate your approach, then ask the coach.