Explain the purpose of the async keyword in Flutter's Dart code.
- Declares a function as a synchronous operation
- Designates a function as asynchronous
- Enables multi-threading in Dart
- Marks a function as non-blocking
The 'async' keyword in Flutter's Dart code is used to designate a function as asynchronous. Asynchronous functions allow non-blocking execution, enabling the program to continue executing other tasks while waiting for asynchronous operations to complete. This is crucial for building responsive and performant Flutter applications, especially when dealing with time-consuming tasks like network requests. Understanding how to use 'async' is fundamental for effective asynchronous programming in Flutter.
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