How should I structure React code in a time-limited interview?
Start simple, split by visible component, keep state local initially, avoid premature abstraction, and use clear names. Do not pre-structure for an imagined future in a 90-minute round. A working app beats a well-architected half-built one.
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Only when it directly helps you build the next feature faster. Do not refactor for its own sake. Each refactor costs time, and in a 90-minute round, time is your scarcest resource.
Split by visible UI boundaries: header, sidebar, list, modal. Visible splits are easy to reason about and help you keep state in the right place, without elaborate architecture.
Start with local state. Use Context or lift to a parent only when multiple components need the same data. Do not reach for Redux or global state up front; that adds setup time you may not have.
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