What are the dependencies in useEffect in React Native?

What are the dependencies in useEffect in React Native?

In React Native, dependencies in useEffect determine when the effect runs. If you pass an empty array, it runs once after the initial render.

Can you give me an example of how to use it?

Sure! If you want to fetch data when a component mounts, you can do this:

useEffect(() => {
  fetchData();
}, []);

What happens if I include variables in the dependency array?

If you include variables, the effect will run whenever those variables change. For example:

useEffect(() => {
  fetchData(id);
}, [id]);

Is it possible to have multiple dependencies?

Yes, you can include multiple dependencies in the array. The effect will run if any of them change:

useEffect(() => {
  fetchData(id, user);
}, [id, user]);