use-update-effect

About

An useEffect that does not run on first render

Installation

npm install --save @rooks/use-update-effect

Importing the hook

import useUpdateEffect from "@rooks/use-update-effect";

Usage

function Demo() {

const [userID, setUserID] = useState();

const [hasUpdated, setHasUpdated] = useState({ userID, updated: false });

useUpdateEffect(() => {

API.subscribe(userID);

setHasUpdated({ userID, updated: true });

() => {

API.unsubscribe(userID);

setHasUpdated({ userID, updated: false });

};

}, [value]);

return (

<>

<button onClick={() => setUserID(Math.random())}>user ID is {userID}</button>

<p>Has updated for userID - {hasUpdated.toString()}</p>

</>

);

}

render(<Demo />);

Join Bhargav's discord server

You can click on the floating discord icon at the bottom right of the screen and talk to us in our server.