Zustand Patterns for React Problem Statement Zustand's simplicity hides important timing details. is synchronous, but React re-renders are batched. escapes stale closures. Async actions in stores need careful handling. Understanding these internals prevents subtle bugs. --- Pattern: set() is Synchronous, Renders are Batched Problem: Assuming state is "ready" for React immediately after . Key insight: - updates the store synchronously - immediately reflects the new value - React components re-render asynchronously (batched) When this matters: - Chaining multiple state updates - Validating stat…