What are some examples of using async and await in Dart?

Can you explain how async and await work in Dart?

Sure! In Dart, async and await are used to handle asynchronous operations. The 'async' keyword is used to mark a function as asynchronous, allowing it to perform non-blocking operations. The 'await' keyword is used to pause the execution of the function until the awaited operation completes.

Can you provide some code examples?

Absolutely! Here's a simple example:

Future<void> fetchData() async {
  var data = await getDataFromApi();
  print(data);
}

In this example, getDataFromApi() is an asynchronous function that returns a Future.

What happens if I don't use await?

If you don't use 'await', the function will not wait for the asynchronous operation to complete, and it will continue executing the next lines of code immediately. This can lead to unexpected behavior if the subsequent code depends on the result of the async operation.

Are there any best practices for using async and await?

Yes! Some best practices include:

1. Always use 'await' when calling async functions to avoid unhandled futures.
2. Keep your async functions short and focused.
3. Handle exceptions using try-catch blocks to manage errors gracefully.