swavkulinski

void main() {
  var result = <int>[];
  for (var (int x,int y) = (0,1); y < 100; (x+=y,y+=x)){
    result.add(x);
    result.add(y);
  }
  print (result);
}

swavkulinski

void main() {
  f(A1('1'));
  f(A2(2));
  // f(A3()); // Abstract classes cannot be instantiated
  f(A31('A3',31));
  f(A32('A3',32));
  f(A33('A3','33'));
}

void f(A x) {

swavkulinski

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

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

/// This sample demonstrates the difference between Ref.read() and Ref.watch()

/// This sample is broken to show that despite repoProvider is updated there is no update in the UI

// This is where our state is stored

swavkulinski

main (){}

abstract class A {
 
  void listen({
    bool isOk,
    required String isBad,
  });
}

swavkulinski

rules_version = '2';
service cloud.firestore {
  match /databases/{database}/documents {
    
    function isAuthorised() {
      return request.auth != null;
    }

    function isAuthorisedWithId(id) {
       

swavkulinski

import 'package:flutter/material.dart';

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

final data = [0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,20]
  .map((x) => {'name':' Dart $x'}).toList();

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

swavkulinski

void main() {
  
}

enum Moves {
  FORWARD,
  BACK,
  LEFT,
  RIGHT,
  JUMP,

swavkulinski

void main() {
  
  // an array is a collection of objects
  var dance = [Moves.LEFT,Moves.RIGHT,Moves.JUMP,];
  
  print('${dance[0]}');

  for (var move in dance) {
    print('$move');
  }

swavkulinski

void main() {
  var breakfast = Breakfast(
    tea: Tea(
      milk: Milk(),
    ),
  );

  print('$breakfast was ${breakfast.getCalories()} calories');
}

swavkulinski

void main(){
  var breakfast = Breakfast();
  
  print('$breakfast');
  
}

class Breakfast {
  
}