Code reviewMediumcr-g277

Subject Null handlingLevel Mid–Senior~15 minCommon in Code quality & review interviewsIndustries Software development

Question

Review this Go rate-limit counter increment.

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.

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Code to reviewgo

1type Limiter struct {2    counts map[string]*int3}4 5func (l *Limiter) Hit(key string) int {6    c := l.counts[key]7    *c++8    return *c9}

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