hoangitk

GUI on Wsl2

How to

1. INSTALL WSL 2

> Enable-WindowsOptionalFeature -Online -FeatureName Microsoft-Windows-Subsystem-Linux
--Restart
> dism.exe /online /enable-feature /featurename:VirtualMachinePlatform /all /norestart
> dism.exe /online /enable-feature /featurename:Microsoft-Windows-Subsystem-Linux /all /norestart
--Restart

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Appcmd

• Path: APPCMD=/c/windows/system32/inetsrv/appcmd.exe
• Stop an apppool:

$APPCMD stop apppool /apppool.name:<your-apppool>

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Docker

Docker Compose

• Run

$ docker-compose up -d

• Exec

$ docker-compose exec devbox-db psql devbox

hoangitk

public class Pattern<TReturn>
	: List<(Type Type, Func<object, TReturn> Map)>
{
	public void Add<T>(Func<T, TReturn> map)
		=> Add((typeof(T), o => map((T)o)));

	public Pattern<TReturn> Default(TReturn val)
	{
		Add((object _) => val);
		return this;

hoangitk

Chrome Snippets

List all urls

urls = []
$$('*').forEach(element => {
  urls.push(element.src)
  urls.push(element.href)
  urls.push(element.url)
}); console.log(...new Set(urls)) 

hoangitk

Re-init

Method 1 - reset, keep history and push --force

git reset --soft HEAD^
git add -A .
git commit -m "rewriting history"
git push --force origin master

hoangitk

using System;
using System.Threading.Tasks;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Diagnostics;
using System.Net.Sockets;

namespace ConsolePortScanner
{
    class MainClass

hoangitk

WSL

Command

• List all distros

wsl -l -v

• List distro location

(Get-ChildItem HKCU:\Software\Microsoft\Windows\CurrentVersion\Lxss | ForEach-Object {Get-ItemProperty $_.PSPath}) | select DistributionName,BasePath,VhdFileName

hoangitk

Csharp Data Annotation

• https://docs.microsoft.com/en-us/aspnet/mvc/overview/older-versions-1/models-data/validation-with-the-data-annotation-validators-cs

Samples

• Decimal

[RegularExpression(@"^\$?\d+(\.(\d{2}))?$")]

hoangitk

/*https://github.com/AutoMapper/AutoMapper/blob/18f974a091c910675eea599e6164e8b70ca3aae8/src/AutoMapper/Internal/LockingConcurrentDictionary.cs*/
public struct LockingConcurrentDictionary<TKey, TValue>
{
	private readonly ConcurrentDictionary<TKey, Lazy<TValue>> _dictionary;
	private readonly Func<TKey, Lazy<TValue>> _valueFactory;

	public LockingConcurrentDictionary(Func<TKey, TValue> valueFactory)
	{
		_dictionary = new ConcurrentDictionary<TKey, Lazy<TValue>>();
		_valueFactory = key => new Lazy<TValue>(() => valueFactory(key));