esDotDev

import React, {useState, useEffect} from 'react';

const FlashCardGame = () => {
  const [score, setScore] = useState(0);
  const [quesNum, setQuesNum] = useState(0);
  const [questions, setQuestions] = useState([]);

  useEffect(() => {
    generateQuestions();

esDotDev

// Controller
class TodoController {
  constructor(api) {
    this.api = api;
  }

  async getAllTodos() {
    const todos = await this.api.getAllTodos();
    return todos;
  }

esDotDev

Write a TODO app in FLutter using a Rest API to read and write data. Encapsulate business logic in a dedicated controller class.

//Imports
import 'package:flutter/material.dart';
import 'package:http/http.dart' as http;
import 'dart:convert';

//Todo Controller class
class TodoController {
  //Get all todos

esDotDev

#!/bin/bash
flutter clean
rm -rf $FLUTTER_ROOT/.pub-cache
rm -rf $HOME/Library/Caches/CocoaPods
rm -rf ios/Pods
rm -rf ios/build
rm -rf "$(getconf DARWIN_USER_CACHE_DIR)/org.llvm.clang/ModuleCache"
rm -rf "$(getconf DARWIN_USER_CACHE_DIR)/org.llvm.clang.$(whoami)/ModuleCache"
rm -rf ~/Library/Developer/Xcode/DerivedData/
rm -rf ~/Library/Caches/com.apple.dt.Xcode/

esDotDev

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

/// Click the content to expand / constact the card.
/// These overflow warnings are not helpful, and impact developer efficiency and joy. 
// It would be nice to turn them off for this specific widget.

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

esDotDev

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

int _seed = DateTime.now().millisecondsSinceEpoch;

/// Globally accessible instance of `Random`.
/// Makes using random values as easy as `rnd(20)` or `rnd.getBool()`.
Random rnd = Random(_seed);

/// Sets the seed of the `rnd` global `Random` instance.

esDotDev

/// 1. The public facing widget, configuration options live here
class MyWidget extends StatefulWidget {
  @override
  _MyWidgetState createState() => _MyWidgetState();
}
/// 2. The state / controller / bloc / view controller
/// event handlers and helper methods can live here
class _MyWidgetState extends State<MyWidget> {
  void _handlePressed() => print('todo');
  @override

esDotDev

class Benchmark extends StatefulWidget {
  const Benchmark({Key? key}) : super(key: key);
  @override
  _BenchmarkState createState() => _BenchmarkState();
}

class _BenchmarkState extends State<Benchmark> {
  double _tweenSliderValue = .2;
  bool _enableRendering = false;
  bool _useGTween = false;

esDotDev

/// Example usage
///
/// One shot:
// GTweener.fade(from: .9, to: 1, child: const FlutterLogo()),
///
/// Or use a key for future control
// final _tweenKey = GlobalKey<GTweenerState>();
// ...
// return GTweener.fade(key: _tweenKey, child: const FlutterLogo()),

esDotDev

class UrlRouter extends RouterDelegate<String> with ChangeNotifier, PopNavigatorRouterDelegateMixin {
  UrlRouter({String url = '/', this.onGeneratePages, this.builder, this.onPopPage, this.onChanging}) {
    _initialUrl = url;
    assert(onGeneratePages != null || builder != null,
    'UrlRouter expects you to implement `builder` or `onGeneratePages` (or both)');
  }
  
  /// This delegat analagous to MaterialApp.routes / onGenerateRoute
  final List<Page<dynamic>> Function(UrlRouter router)? onGeneratePages;