kranfix

// based on: https://www.youtube.com/watch?v=ZHRhSFXqHJY
// but better modularied
import 'dart:math';
import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {

kranfix

/// Temporal file for migrating to [WidgetRef] syntax in the
/// becoming `riverpod` version.
///
/// See the new RFC and the implementation (WIP)
/// - RFC: https://github.com/rrousselGit/river_pod/issues/335
/// - PR: https://github.com/rrousselGit/river_pod/pull/462
///
/// Medum article about the usage: https://link.medium.com/4F5gdDISXfb
library temporal_widget_ref_migration;

kranfix

void main() {
  final obj1 = MyComplexObject(1, 2.0);
  final obj2 = MyComplexObject(1, 2.0);
  assert(!identical(obj1, obj2)); // obj1 and obj2 are not the same object
  
  const cobj1 = MyComplexObject(1, 2.0);
  const cobj2 = MyComplexObject(1, 2.0);
  assert(identical(cobj1, cobj2)); // cobj1 and cobj2 are the same object
  assert(!identical(cobj1, obj1)); // cobj1 and obj1 are not the same object
}

kranfix

void main() {
  final list = <int>[1, 2, 3, 4, 2, -1, 5];
  final maxValue = 12;
  
  var sum = 0;
  for(final val in list) {
    sum += val;
  }
  if(sum > maxValue) {
    sum = maxValue;

kranfix

void main() {
  final list = <int>[1, 2, 3, 4, 2, -1, 5];
  final maxValue = 12;
  
  final sum = list.clampedSum(maxValue);
  
  /// ... more code that uses `sum` ...
}

extension ClampedAdder on List<int> {

kranfix

void main() {
  final list = <int>[1, 2, 3, 4, 2, -1, 5];
  final maxValue = 12;
  
  final sum = (){
    var sum = 0;
    for(final val in list) {
      sum += val;
    }
    if(sum > maxValue) {

kranfix

void main() {
  final list = <int>[1, 2, 3, 4, 2, -1, 5];
  final maxValue = 12;
  
  late final int sum;
  {
    var _sum = 0;
    for(final val in list) {
      _sum += val;
    }

kranfix

void main() {
  print(fibo(3));
  print(fibo(5));
  
  print(fibo(13));
  print(fibo(8));
}

// TODO: refactorizar usando cache
int fibox(int n) {

kranfix

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

void main() => runApp(ProviderScope(child: const MyApp()));

final counterProvider = StateProvider<int>((ref) {
  //final unsub = someStream.subscribe((val) => ref.state = va;);
  //ref.onDispose(() => unsub());
  return 0;
});

kranfix

void main() {
  final email1 = Email.maybeFrom("frank@moreno");
  final email2 = Email.maybeFrom("[email protected]");
  print(email1);
  print(email2);
}


bool isValidEmail(String email) {
  // Regular expression to validate the format of an email