ha-yi

main() {
  for(int i = 0; i < 20; i++) {
    print((9 * i) + (i.isEven ? 1 : 0));
  }
}

ha-yi

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

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

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

class MyApp extends StatelessWidget {

ha-yi

import 'package:test/test.dart';

extension ListExt<T> on List<T> {
  
  /// Remove an object from
  operator -(T other) async {
    this.remove(other);
    return this;

ha-yi

extension StringExt on String {
  operator -(String another) {
    return this.replaceAll(another, "");
  }
}

void main() {
  print("Hello World" - "World");
}

ha-yi

import 'package:flutter/material.dart';

extension StringExt on String {
  Text toH2(context) {
    return Text(this, style: Theme.of(context).textTheme.headline2,);
  }
}

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

ha-yi

import 'package:flutter/material.dart';

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

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

class MyApp extends StatelessWidget {
  @override

ha-yi

import 'package:flutter/material.dart';

typedef GetString<T> = String Function(T from);

class MyObject{
  String title;
  String name;
  MyObject(this.title, this.name);
}

ha-yi

extension StringExt on String {
  operator -(String another) {
    return this.replaceAll(another,"");
  }
}

main() {
  print("Hello" - "l");
}

ha-yi

import 'package:flutter/material.dart';

class SplitColorIcon extends StatelessWidget {
  final double size;
  final Color leftColor;
  final Color rightColor;
  final IconData iconData;

  const SplitColorIcon({
    Key key,

ha-yi

class BaseData<T> {
  T data;
  String message;
  int code;
}


void main() {
  
  BaseData<String> bs = new BaseData();