The plain-English version
A function that connects React components to features such as state or effects.
Why it matters
Hooks have usage rules; effects need careful handling of dependencies and cleanup.
The docs behind it
Documentation links checked .
Editorial review · October 28, 2026
Supported: Read the full explanation, examples, and pitfalls; no material factual error identified. References are supporting reading, not a sentence-by-sentence source concordance.