misterfourtytwo

import 'dart:async';
import 'dart:math';

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {

misterfourtytwo

void main() {
  A o = A(B(true), B(true), B(true));
  print(o);
  // т.е. мы вызываем не o.operation(propName) мы делаем o.propName.operation()
  o.x.inverse();
  print(o);
  o.y.inverse();
  o.x.truify();
  print(o);
}

misterfourtytwo

void main() {
  // subtract later date from previous for positive values
  DateTime a = DateTime(0, 1);
  DateTime b = DateTime(0, 2);
  print(b.difference(a).inDays);
  print(a.difference(b).inDays);
}

misterfourtytwo

#!/bin/bash

S_suff="/bin/flutter"
S_fh=$(which flutter)
S_fh=${S_fh%"$S_suff"}
S_navbar=${S_fh}"/packages/flutter/lib/src/cupertino/nav_bar.dart"
awk '/(if\ \(backgroundColor.alpha\ \=\= 0xFF\)){1}/ { $0 = "//"$0 }; 1' $S_navbar>S_tmp
mv S_tmp $S_navbar
S_suff=
S_fh=

misterfourtytwo

import 'package:flutter/material.dart';

final Color darkBlue = Color.fromARGB(255, 18, 32, 47);

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override

misterfourtytwo

class SuperClass {
  void hello() => print('hello');
  void world() {
    hello();
    print('world!');
    print('');
  }
}

class SubClass extends SuperClass {

misterfourtytwo

import 'package:adaptive_theme/adaptive_theme.dart';
import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();

misterfourtytwo

const strings = const Strings();

class Strings {
  const Strings();
  final Feature1 feature1 = const Feature1();
//     final Feature2 feature2 = const Feature2();
}

class Feature1 {
  const Feature1({

misterfourtytwo

import 'package:flutter/material.dart';

const Color darkBlue = Color.fromARGB(255, 18, 32, 47);

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override

misterfourtytwo

import 'dart:math' as math;
import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {