React performance: measure renders before memoizing
Before adding memoization, identify whether the real problem is repeated rendering, expensive rendering, a costly commit, or something outside React entirely.
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Deep dives and practical notes across the full software stack.
Before adding memoization, identify whether the real problem is repeated rendering, expensive rendering, a costly commit, or something outside React entirely.
Caching becomes a system-design problem the moment a second copy of data can outlive the request that created it. Start with acceptable staleness, not Redis.