How do I debug a React application?

I'm having trouble debugging my React app. Where should I start?

Start by checking the console for any error messages. They often provide clues about what's going wrong.

I see a warning about a missing key prop in a list. What does that mean?

The warning indicates that you need to provide a unique 'key' prop to each element in a list to help React identify which items have changed.

How can I add these keys in my code?

You can add a 'key' prop to your list items, like this: <li key={item.id}>{item.name}</li>.

Thanks! What if I still can't find the issue?

You can use React Developer Tools to inspect your components and their state, which can help you identify issues.