What are common errors when using JavaScript promises?

What are common errors when using JavaScript promises?

Common errors include not returning a promise, forgetting to handle rejections, and chaining promises incorrectly.

Can you explain how to handle promise rejections?

You can handle promise rejections using the .catch() method or by using try...catch with async/await.

What happens if I don't handle a promise rejection?

If you don't handle a rejection, it can lead to unhandled promise rejections, which may crash your application.

Are there best practices for using promises?

Yes, always return promises, use .catch() for error handling, and avoid nesting promises to keep your code clean.