memo-strategy

Guides precise, justified memoization decisions in React — covering when NOT to memoize as much as when to.

Phase 1 — Discover

Before recommending anything, establish:

• Is the re-render actually measured as slow? (profiler, not intuition)
• What triggers the re-render? (parent re-render, context change, state change)
• Are the props stable across renders? (objects/arrays/functions created inline = never stable)
• Is the expensive computation inside render, or just a prop lookup?

Skip this phase only if the user is asking a conceptual question, not debugging a specific component.