PlugFox

/*
 * Long Polling example
 * https://gist.github.com/PlugFox/51038cb6f587332f6e803790a7d991e5
 * https://dartpad.dev?id=51038cb6f587332f6e803790a7d991e5
 * Matiunin Mikhail <plugfox@gmail.com>, 29 October 2023
 */

// ignore_for_file: avoid_print

import 'dart:async';

PlugFox

/*
 * Polling example
 * https://gist.github.com/PlugFox/b6e5bbbbfe79157c8229f1ba4808fbe9
 * https://dartpad.dev?id=b6e5bbbbfe79157c8229f1ba4808fbe9
 * Matiunin Mikhail <plugfox@gmail.com>, 29 October 2023
 */

// ignore_for_file: avoid_print

import 'dart:async';

PlugFox

/*
 * Пример обмена данными между клиентом и сервером по протоколу TCP/IP
 * https://gist.github.com/PlugFox/9cc2adb1d8df24fae2164e95dba6a911
 * https://dartpad.dev?id=9cc2adb1d8df24fae2164e95dba6a911
 * Matiunin Mikhail <plugfox@gmail.com>, 29 October 2023
 */

// ignore_for_file: avoid_print, lines_longer_than_80_chars

import 'dart:async';

PlugFox

import 'dart:async';

import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';

/// {@template text_measure}
/// TextMeasure widget.
/// {@endtemplate}
class TextMeasure extends StatefulWidget {

PlugFox

import 'dart:isolate';

void main() async {
  final toMainIsolate = ReceivePort();
  final stream = toMainIsolate;

  void fn(ITargetAction action) => action.handleAction();

  final worker = Worker<ITargetAction>(
    port: toMainIsolate.sendPort,

PlugFox

Benchmark Results

Technology	Time taken for tests (sec)	Complete requests	Failed requests	Requests per second (mean)	Time per request (ms)	Time per request (concurrent ms)	Transfer rate (Kbytes/sec)
CivetWeb	40.100	100,000	129	2493.77	400.999	0.401	136.21
Dart + Shelf	12.758	100,000	0	7837.96	127.584	0.128	2005.42
Node.js	10.457	100,000	0	9562.88	104.571	0.105	1055.28

PlugFox

import 'dart:convert';

import 'package:crypto/crypto.dart';
import 'package:meta/meta.dart';

/// {@template jwt}
/// A JWT token consists of three parts: the header,
/// the payload, and the signature or encryption data.
/// The first two elements are JSON objects of a specific structure.
/// The third element is calculated based on the first two

PlugFox

import 'dart:convert';

void main() {
  final jsonRaw = '{"items": [1, 2, 3]}';
  final json = jsonDecode(jsonRaw) as Map<String, Object?>; // good
  try {
    //final items = (json['items'] as List<Object?>).cast<int>().toList(); // good
    final items = json['items'] as List<int>; // bad
    print(items);
  } on Object catch (err) {

PlugFox

import 'package:flutter/widgets.dart';
import 'sizer.dart';

class AdaptiveWidget extends StatefulWidget {
  const AdaptiveWidget({
    required this.compactChild,
    required this.extendedChild,
    this.alignment = Alignment.center,
    super.key,
  });

PlugFox

/// Dependencies
abstract interface class Dependencies {
  /// The state from the closest instance of this class.
  factory Dependencies.of(BuildContext context) => InheritedDependencies.of(context);

  /// App metadata
  abstract final AppMetadata appMetadata;

  /// Database
  abstract final Database database;