Dart main() function

To initialize a Future<Type>, see the following example: Future<String> myFutureString = Future(() => “Future String”); Here “Future String” is a String and so the code above returns an instance of Future<String>.

A Future is defined exactly like a function in Dart, but instead of Void you use Future . If you want to return a value from Future, then you pass it a Type.

The future class allows us to run asynchronous code and we can also avoid the callback hell with the help of it . A future mainly represents the result of an asynchronous operation. In Dart, there are many standards library calls that return a future, some of them are − http.get. SharedPreference.getInstance()

The future for Dart is bright, indeed! The Dart team has spent the last year making it the premier language for client-side development with the AngularDart framework for web and the Flutter framework for cross-platform, native mobile apps.