YuanLiou

// ViewState
sealed class ViewEffect {
    data class ShowToast(val message: String) : ViewEffect()
}

// Set up LiveData
private val _viewEffectPublisher: MutableLiveData<Event<ViewEffect>>()
val viewEffectPublisher = LiveData<Event<ViewEffect>>
    get() = _viewEffectPublisher

YuanLiou

class Event<out T>(private val content: T) {

    var hasBeenHandled = false
        private set

    fun getContentIfNotHandled(): T? {
        if (hasBeenHandled) {
            return null
        } else {
            hasBeenHandled = true

YuanLiou

public class SingleLiveData<T> : MutableLiveData<T> {

    private val pending = AtomicBoolean(false)

    @MainThread
    override fun observe(owner: LifecycleOwner, observer: Observer<T>) {
        super.observe(owner, object : Observer<T>() {
            override fun onChanged(t: T?) {
                // compareAndSet(expect, update)
                //  here if `true` then set to false

YuanLiou

fun Project.getLocalOrDefaultProperties(): Map<String, Any?> {
    return getEnvOrDefaultProperties("local.properties")
}

private fun Project.getEnvOrDefaultProperties(path: String): Map<String, Any?> {
    return rootProject.file(path)
        .takeIf { it.canRead() }
        ?.let { readProperties(it).toMap() as Map<String, Any?> }
        ?: properties.toMap()
}

YuanLiou

// To view the default settings, hold "alt" while clicking on the "Settings" button.
// For documentation on these settings, see: https://aka.ms/terminal-documentation

{
    "$schema": "https://aka.ms/terminal-profiles-schema",

    "defaultProfile": "{61c54bbd-c2c6-5271-96e7-009a87ff44bf}",

    "profiles":

YuanLiou

fun main(argv: Array<String>) {
    val md5Result = "Hello World".saltMD5(null)
    println("The Salted MD5 Hash is = $md5Result")
}

private fun String.saltMD5(salt: String?): String {
    val saltedString = salt?.let { this + it } ?: this
    val md5MessageDigest = MessageDigest.getInstance("MD5")
    val digest = md5MessageDigest.digest(saltedString.toByteArray())
    val stringBuilder = StringBuilder()

YuanLiou

if (beta > 0 ) {
  version = major * 1000000 + minor * 10000 + (bugfix -1) * 100 + beta
} else  {
  version = major * 1000000 + minor * 10000 + bugfix * 100;
}

YuanLiou

import React from 'react';
import { StyleSheet, Text, Image, View } from 'react-native';

export default class App extends React.Component {
  render() {
    return (
      <View style={{alignItems: 'center', marginTop: 250}} >
        <Greeting name="Denkeni" relationship="Boss" />
        <Greeting name="Joan" relationship="Classmate" />
        <Greeting name="Billy" relationship="Roommate" />

YuanLiou

if status is-interactive
    # Commands to run in interactive sessions can go here
end

# Oh My Posh
oh-my-posh init fish --config ~/.config/ohmyposh/omp.toml | source

# Misc
set fish_greeting "Hello Fish!"
set TERM "xterm-256color"

YuanLiou

public class somebody {
    public static void main(String[] argv) {
        Store store = new Store();
        List<Cellphone> cellphones = store.getCellphones();
        for (int i = 0; i < cellphones; i++) {
            cellphones[i].power(false);
        }

        iPhone iphoneX = new iPhone();
        cellphones.add(iphoneX);