Hook

noun / verb /hʊk/

In React, a function that lets you manage state and side effects inside a functional component (e.g. useState, useEffect). More broadly, a hook is a callback invoked at a specific point in a lifecycle.

"The useEffect hook fetches the user profile when the component mounts and cleans up the subscription on unmount."

Frequently Asked Questions

What does "Hook" mean in IT?

In React, a function that lets you manage state and side effects inside a functional component (e.g. useState, useEffect). More broadly, a hook is a callback invoked at a specific point in a lifecycle.

Is "Hook" an acronym?

No — "Hook" is not an acronym or abbreviation. It's used as a standalone term (noun / verb) in IT conversations and documentation.

How do you pronounce "Hook"?

"Hook" is pronounced /hʊk/. Use the "Listen" button above to hear it spoken aloud.