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.
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.
Concurrent rendering is easier to reason about when you see it as interruptible preparation with an atomic commit—not as background threads for components.