UseMemo

Custom hooks look like plain functions, but they carry hidden performance costs. Here's how beginner-level hook code differs from the patterns experienced React developers reach for.

React Compiler promises to eliminate manual useMemo and useCallback calls. Here is a practical, step-by-step look at how it works and how to adopt it safely.

These two hooks are often confused, but they solve fundamentally different problems. Here is the practical distinction based on real profiling.