nested-generators-in-dart.dart

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import 'dart:developer' as devtools show log;

extension Log on Object {
  void log() => devtools.log(toString());
}

Iterable<String> maleNames() sync* {
  yield 'John';
  yield 'Peter';
  yield 'Robert';
}

Iterable<String> femaleNames() sync* {
  yield 'Mary';
  yield 'Patricia';
  yield 'Linda';
}

Iterable<String> allNames() sync* {
  yield* maleNames();
  yield* femaleNames();
}

void testIt() {
  // (John, Peter, Robert, Mary, Patricia, Linda)
  allNames().log();
}