delay method

Future<void> delay([
  1. FutureOr<void> callback()?
])

Utility to delay some callback (or code execution). to stop it.

Sample:

void main() async {
  print('+ wait for 2 seconds');
  await 2.delay();
  print('- 2 seconds completed');
  print('+ callback in 1.2sec');
  1.delay(() => print('- 1.2sec callback called'));
  print('currently running callback 1.2sec');
}

Implementation

Future<void> delay([FutureOr<void> Function()? callback]) async =>
    Future.delayed(
      Duration(milliseconds: (this * 1000).round()),
      callback,
    );