collection_iteramble_vs_map.dart

import 'package:benchmark_harness/benchmark_harness.dart';

final list = List.generate(100000, (index) => index);

class CollectionForBenchmark extends BenchmarkBase {
  const CollectionForBenchmark() : super('CollectionFor');

  static void main() {
    CollectionForBenchmark().report();
  }

  // The benchmark code.
  @override
  void run() {
    [for (final e in list) e + e];
  }
}

class MapBenchmark extends BenchmarkBase {
  const MapBenchmark() : super('Map');

  static void main() {
    MapBenchmark().report();
  }

  // The benchmark code.
  @override
  void run() {
    list.map((e) => e + e).toList();
  }
}

void main(List<String> arguments) {
  // dart <file>
  // CollectionFor(RunTime): 14212.148936170213 us.
  // Map(RunTime): 11609.630057803468 us.

  // ./<file>
  // CollectionFor(RunTime): 12459.814814814816 us.
  // Map(RunTime): 15028.320895522387 us.

  CollectionForBenchmark.main();
  MapBenchmark.main();
}