Code reviewMediumcr-g459

Subject Boundary conditionsLevel Entry–Mid~14 minCommon in Databases & SQL · Algorithms & data structures interviewsIndustries Software development

Question

Review this Go helper that returns the parent directory of a path by trimming after the last slash.

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

1func parentDir(path string) string {2    i := strings.LastIndex(path, "/")3    return path[:i]4}

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