Code reviewHardcr-g016

Subject Memory leaksLevel Senior–Staff~28 minCommon in Algorithms & data structures interviewsIndustries Software development

Question

Review this Go function that keeps the last few log lines from a large buffer.

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 tail(lines [][]byte) [][]byte {2	if len(lines) <= 100 {3		return lines4	}5	return lines[len(lines)-100:]6}

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