dart_std 0.0.3 dart_std: ^0.0.3 copied to clipboard
A Open Source Project.
import 'package:dart_std/dart_std.dart';
import 'package:flutter/material.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: const MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({
Key? key,
required this.title,
}) : super(key: key);
final String title;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
final int _counter = 0;
final List<int> intArray = [0, 1, 2, 3];
final List<String> strArray = ["Deb", "Singha"];
static const Triple<int, bool, String> _triple = Triple(1, false, "Deb");
final map = {"Deb": "Singha"};
void _incrementCounter() {
debugPrint(2.toOrdinal());
debugPrint(0.isNull().toString());
debugPrint(intArray.lastIndex.toString());
debugPrint(intArray.elementAtOrNull(5).toString());
debugPrint(intArray.firstIndex.toString());
debugPrint(intArray.indices.toString());
debugPrint(intArray.drop(1).toString());
debugPrint(intArray.dropWhile((element) => element.isEven).toString());
debugPrint(intArray.dropLast(2).toString());
debugPrint(_triple.third.toString());
debugPrint(10.toLikes());
debugPrint(map.filter((entry) => entry.key == 'Deb').values.toString());
debugPrint(20.divide(2.5).toString());
debugPrint(intArray.joinToString());
debugPrint(strArray.joinToString());
}
@override
void initState() {
super.initState();
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
const Text(
'You have pushed the button this many times:',
),
Text(
'$_counter',
style: Theme.of(context).textTheme.headline4,
),
],
),
),
floatingActionButton: FloatingActionButton(
onPressed: _incrementCounter,
tooltip: 'Increment',
child: const Icon(Icons.add),
), // This trailing comma makes auto-formatting nicer for build methods.
);
}
}