How do I handle side effects in React using useEffect?

How do I handle side effects in React using useEffect?

You can handle side effects in React by using the useEffect hook. It allows you to perform side effects in function components.

Can you give me an example of a side effect?

Sure! A common side effect is fetching data from an API. You can use useEffect to call the API when the component mounts.

What if I want to clean up after the side effect?

You can return a cleanup function from useEffect. This function will run when the component unmounts or before the effect runs again.

How do I specify dependencies for useEffect?

You can pass an array of dependencies as the second argument to useEffect. The effect will only run when these dependencies change.