What makes Dart fast and efficient for executing tasks?

Dart provides high speed and efficiency thanks to several key features:

• JIT and AOT compilation: During development, JIT (Just-In-Time) compilation is used for rapid iteration, while for release — AOT (Ahead-Of-Time) compilation, which converts code into native machine code, speeding up execution.

• Optimized garbage collector: Dart uses an efficient low-latency garbage collector that minimizes pauses and enhances performance.

• Asynchrony and isolates: Dart supports asynchronous programming with Future and async/await, as well as isolates — lightweight threads that do not share memory, simplifying parallel execution.

• Optimized runtime for UI: In Flutter, Dart works directly with rendering, reducing overhead and increasing interface responsiveness.

Example of using async/await for an asynchronous operation:

Future<String> fetchData() async {
  await Future.delayed(Duration(seconds: 2));
  return 'Data loaded';
}

void main() async {
  print('Starting load');
  String data = await fetchData();
  print(data);
}