Debug and optimize React performance issues
MetaSoftware Engineer · Technical Screen
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This interview question evaluates requirements, scale assumptions, API/data design, architecture, trade-offs, failure modes, and rollout in a realistic interview setting. A strong answer for Debug and optimize React performance issues states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.
Question
Given a React codebase containing several bugs and performance problems, identify unnecessary re-renders, event-binding leaks, and misaligned rendering. Bonus: How would you optimize a severely laggy component?
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