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void main() {
  final String name = "Adam";

  print("=== ?? ===");
  // does not execute defaultValue()
  print(name ?? defaultValue());

  print("=== orDefault ===");
  // executes defaultValue()
  print(name.orDefault(defaultValue()));

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Number to LCD Kata

Kotlin coding dojo no. 8: convert a given integer number to a LCD style number, see Part 1 of NumberToLCDKata

    0123456789
         
         
         |
         V

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import 'dart:convert';

import 'package:deep_pick/deep_pick.dart';
import 'package:http/http.dart' as http;

Future<void> main() async {
  /// Request data from a json API
  final response = await http.get("https://pokeapi.co/api/v2/pokemon/1");
  final json = jsonDecode(response.body);

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import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: HomePage(),
    );

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class Apple {}

class Banana {}

List<Apple> bag([List<Apple> apples]) => apples ?? <Banana>[];

void main() {
  // ok
  final bag1 = bag([Apple()]);
  print(bag1);

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object Rx {
    fun <T> delayFlowable(delay: Long, timeUnit: TimeUnit, scheduler: Scheduler = Schedulers.computation(),
            block: () -> Flowable<T>): Flowable<T> {
        return Completable.timer(delay, timeUnit, scheduler).andThen(Flowable.defer { block() })
    }

    fun <T> delayObservable(delay: Long, timeUnit: TimeUnit, scheduler: Scheduler = Schedulers.computation(),
            block: () -> Observable<T>): Observable<T> {
        return Completable.timer(delay, timeUnit, scheduler).andThen(Observable.defer { block() })
    }

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/**
 * Maps the [Single] value [T] to a nullable type [R?] which will become [Maybe.empty] when `R == null`,
 * otherwise [Maybe.just]
 */
inline fun <T, R> Single<T>.mapNullable(crossinline mapper: (T) -> R?): Maybe<R> = this.flatMapMaybe {
    val result = mapper(it)
    if (result == null) Maybe.empty() else Maybe.just(result)
}

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package com.pascalwelsch.android.util

import android.content.Context
import androidx.core.os.ConfigurationCompat
import androidx.core.os.LocaleListCompat
import java.util.Locale

/**
 * Returns an [Iterable] for the languages of the user, sorted by priority. First choice first.
 */

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#!/bin/sh

# Check if 7zip is installed and install it if not
hash 7z 2>/dev/null || {
	echo >&2 "7z is required to be installed";
	echo "I will install it for you";
	brew install p7zip;
}

# Read the commit sha

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public class ParcelableTest extends AndroidTestCase {
    
    /**
     * Parcels the given Parcelable, unparcels it and returns the unparceled value
     *
     * @param value the Parcelable to operate on
     */
    public static Parcelable parcelAndUnparcel(Parcelable value) {
        Parcel parcel = Parcel.obtain();
        value.writeToParcel(parcel, 0);