atifaziz

git stash                             # 1. save index changes
git rm -r --cached .                  # 2. empty the index
git branch orphan (                   # 5. create the orphan branch
  git commit-tree -m 'Empty commit' ( # 4. commit the empty tree
    git write-tree))                  # 3. write the empty index
git reset HEAD                        # 6. revert emptying of the index
git stash pop --index                 # 7. restore stashed changes

atifaziz

#region Copyright (c) 2021 Atif Aziz. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,

atifaziz

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>netcoreapp3.1</TargetFramework>
    <RootNamespace></RootNamespace>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="ncrontab" Version="3.3.1" />

atifaziz

<Query Kind="Program">
  <Namespace>System.Globalization</Namespace>
  <RemoveNamespace>System.Collections</RemoveNamespace>
  <RemoveNamespace>System.Data</RemoveNamespace>
  <RemoveNamespace>System.Diagnostics</RemoveNamespace>
  <RemoveNamespace>System.Linq.Expressions</RemoveNamespace>
  <RemoveNamespace>System.Reflection</RemoveNamespace>
  <RemoveNamespace>System.Text</RemoveNamespace>
  <RemoveNamespace>System.Text.RegularExpressions</RemoveNamespace>
  <RemoveNamespace>System.Threading</RemoveNamespace>

atifaziz

<Query Kind="Program">
  <NuGetReference Version="4.0.0">System.Reactive</NuGetReference>
  <NuGetReference Version="4.5.0">System.Text.Encoding.CodePages</NuGetReference>
  <NuGetReference Version="1.0.0-alpha-20200416" Prerelease="true">WebLinq</NuGetReference>
  <Namespace>System.CodeDom.Compiler</Namespace>
  <Namespace>System.Globalization</Namespace>
  <Namespace>System.Net</Namespace>
  <Namespace>System.Net.Http</Namespace>
  <Namespace>System.Net.Http.Headers</Namespace>
  <Namespace>System.Reactive</Namespace>

atifaziz

<Query Kind="Program">
  <NuGetReference Version="1.0.0">Kurukuru</NuGetReference>
  <NuGetReference Version="2.2.4">McMaster.Extensions.CommandLineUtils</NuGetReference>
  <NuGetReference Version="11.0.2">Newtonsoft.Json</NuGetReference>
  <Namespace>Kurukuru</Namespace>
  <Namespace>Newtonsoft.Json</Namespace>
  <Namespace>McMaster.Extensions.CommandLineUtils</Namespace>
  <Namespace>System.Threading.Tasks</Namespace>
  <Namespace>System.Net.Http</Namespace>
</Query>

atifaziz

using System.IO;

var fileName = Path.GetRandomFileName();
Console.WriteLine($"File name: {fileName}");
Console.WriteLine($"Exists? {File.Exists(fileName)}");
using (var fs = File.Create(fileName, 4096, FileOptions.DeleteOnClose))
    Console.WriteLine($"Exists? {File.Exists(fileName)}");
Console.WriteLine($"Exists? {File.Exists(fileName)}");

atifaziz

using System;

public class C {
    public void M((bool, object) x) {
        if (x is (true, {} obj)) {
            Console.WriteLine(obj);
        }
    }
    public void N(bool f, object obj) {
        if (f) {

atifaziz

times = [ '12:00', '10:00', '12:15', '09:30' ]

// simple way
// relies on string comparison operators (`<` and `>`)

sorted = [...times].sort((a, b) => a > b ? 1 : a < b ? -1 : 0)
// sorted = [ '09:30', '10:00', '12:00', '12:15' ]

// complicated way
// - split time on ":" into two parts: hours and minutes

atifaziz

What's this?

Found an interesting [comment] in SqlDataReader's source code:

// this block of type specific shortcuts uses RyuJIT jit behaviours to achieve fast implementations of the primitive types
// RyuJIT will be able to determine at compilation time that the typeof(T)==typeof(<primitive>) options are constant
// and be able to remove all implementations which cannot be reached. this will eliminate non-specialized code for