How do I implement render props in a React app?

How do I implement render props in a React app?

Render props is a technique for sharing code between React components using a prop that is a function. You can create a component that takes a function as a prop and calls it to render UI.

Can you give me an example of how to use render props?

Sure! Here's a simple example: You can create a DataFetcher component that fetches data and uses a render prop to pass the data to its children.

What does the DataFetcher component look like?

The DataFetcher component might look like this:

const DataFetcher = ({ render }) => {
  const [data, setData] = React.useState(null);

  React.useEffect(() => {
    fetch('https://api.example.com/data')
      .then(response => response.json())
      .then(data => setData(data));
  }, []);

  return render(data);
};

You can use it like this:

<DataFetcher render={data => <div>{data ? data.name : 'Loading...'}</div>} />

Are there any downsides to using render props?

Yes, one downside is that it can lead to 'wrapper hell' if overused, making the component tree harder to read. It's important to use it judiciously.