myanmarlinks

import 'dart:async';

main(List<String> arguments) {

  var controller = StreamController<String>.broadcast();
  var streamTransformer = StreamTransformer<String, String>.fromHandlers(
      handleData: (String data, EventSink sink) {
        switch(data) {
          case "fool":
            sink.add("You $data");

myanmarlinks

import 'dart:async';

void main() {
  var streamController = StreamController<String>.broadcast(
    onListen: () => print('onListen'),
    onCancel: () => print("onCancel"),
  );
  StreamSubscription sub = streamController.stream.listen(
        (data) => print('Got $data'),
        onError: (err) => print("Got $err"),

myanmarlinks

import 'dart:async';

void main() {
  var streamController = StreamController<String>(
    onListen: () => print('onListen'),
    onCancel: () => print("onCancel"),
    onPause: () => print("onPause"),
    onResume: () => print("onResume")
  );
  StreamSubscription sub = streamController.stream.listen(

myanmarlinks

fun main(args: Array<String>) {
    val screenState = ScreenState.Data(SomeData(1, "Hello World"))
    setScreenState(screenState)
}

fun setScreenState(screenState: ScreenState) {
    when(screenState) {
        is ScreenState.Error -> println("Error")
        is ScreenState.Loading -> println("Loading")
        is ScreenState.Data -> {

myanmarlinks

data class SomeData(val id: Int, val name: String)

enum class ScreenStateField(val someData: SomeData) {
    ERROR(SomeData(1, "some data 1")),
    LOADING(SomeData(2, "some data 2")),
    DATA(SomeData(3, "some data 3"))
}

myanmarlinks

fun main(args: Array<String>) {
    val basicScreenState = BasicScreenState.ERROR
    setBasicScreenState(basicScreenState)
}
enum class BasicScreenState {
    ERROR,
    LOADING,
    DATA
}
fun setBasicScreenState(basicScreenState: BasicScreenState) {

myanmarlinks

fun main(args: Array<String>) {
    val mammal: Human = Human("John Doe","CEO")
    println(greetMammal(mammal))
    val cat = Cat("Shwe War")
    println(greetMammal(cat))
}

fun greetMammal(mammal: Mammal): String {
    when(mammal) {
        is Human -> return "Hello ${mammal.name}; You're working as a ${mammal.job}"

myanmarlinks

fun main(args: Array<String>) {
    val mammal: Human = Human("John Doe","CEO")
    println(greetMammal(mammal))
    val cat = Cat("Shwe War")
    println(greetMammal(cat))
}

fun greetMammal(mammal: Mammal): String {
    when(mammal) {
        is Human -> return "Hello ${mammal.name}; You're working as a ${mammal.job}"

myanmarlinks

fun main(args: Array<String>) {
    val myToday = MyDays.SUN
    when(myToday) {
        MyDays.SUN -> println(myToday)
    }

    val today = Days.SAT
    when(today) {
        Days.SAT -> println(Days.SAT.value)
    }

myanmarlinks

import 'dart:async';

Stream<int> createNumberStream(int last) async* {
    for(int i=1; i <= last; i++) {
      if(i==5) {
        throw new Exception(
          "Demo exception when accessing 5th number"
        );
      }
      yield i;