Web.Dev 2: Getting Started with Angular 2.0 

• منحصربفرد و immutable (غیرقابل تغییر) هستند. 
  
• همانند رشته‌ها می‌توان از آن‌ها به عنوان کلیدی برای پراپرتی‌ها یک شیء استفاده کرد.

var myIterable = {}
myIterable[Symbol.iterator] = function* () {
    yield 1;
    yield 2;
    yield 3;
};

for (let item of myIterable) {
  console.log(item);
}

let list = [4, 5, 6];

for (let i in list) {
   console.log(i); // "0", "1", "2",
}

for (let i of list) {
   console.log(i); // "4", "5", "6"

let numbers = [1, 2, 3];
for (let num of numbers) {
    console.log(num);
}

var numbers = [1, 2, 3];
for (var _i = 0, numbers_1 = numbers; _i < numbers_1.length; _i++) {
    var num = numbers_1[_i];
    console.log(num);
}
//# sourceMappingURL=app.js.map

<Project>
    <ItemGroup>
        <CompilerVisibleProperty Include="SourceGenerator_CustomRootNamespace"/>        
    </ItemGroup>
</Project>

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

    <PropertyGroup>
        <GeneratePackageOnBuild>true</GeneratePackageOnBuild> <!-- Generates a package at build -->
        <IncludeBuildOutput>false</IncludeBuildOutput> <!-- Do not include the generator as a lib dependency -->
    </PropertyGroup>

    <ItemGroup>
        <!-- Package the generator in the analyzer directory of the nuget package -->
        <None Include="$(OutputPath)\$(AssemblyName).dll" Pack="true" PackagePath="analyzers/dotnet/cs" Visible="false"/>

        <!-- Package the props file -->
        <None Include="NotifyPropertyChangedGenerator.props" Pack="true" PackagePath="build" Visible="true"/>
    </ItemGroup>
</Project>

<Project Sdk="Microsoft.NET.Sdk">
    <PropertyGroup>
        <SourceGenerator_CustomRootNamespace>ThisIsTest</SourceGenerator_CustomRootNamespace>
    </PropertyGroup>


    <ItemGroup>
        <CompilerVisibleProperty Include="SourceGenerator_CustomRootNamespace"/>
    </ItemGroup>
</Project>

internal static class SourceGeneratorContextExtensions
{
    public static string GetMSBuildProperty(
        this GeneratorExecutionContext context,
        string property,
        string defaultValue = "")
    {
        return !context.AnalyzerConfigOptions.GlobalOptions.TryGetValue($"build_property.{property}", out var value)
            ? defaultValue
            : value;
    }
}

[Generator]
public class NotifyPropertyChangedGenerator : ISourceGenerator
{
    public void Initialize(GeneratorInitializationContext context)
    {
    }

    public void Execute(GeneratorExecutionContext context)
    {
        var customRootNamespace = context.GetMSBuildProperty("SourceGenerator_CustomRootNamespace", "Test");

<Project Sdk="Microsoft.NET.Sdk">
    <ItemGroup>
        <AdditionalFiles Include="file1.txt" Visible="false"/> 
    </ItemGroup>
</Project>

<Project Sdk="Microsoft.NET.Sdk">
    <ItemGroup>
        <AdditionalFiles Include="file2.txt" SourceGenerator_EnableLogging="true" Visible="false"/> 
    </ItemGroup>
</Project>

<Project>
    <ItemGroup>
        <CompilerVisibleProperty Include="SourceGenerator_CustomRootNamespace"/>
        
        <CompilerVisibleProperty Include="SourceGenerator_EnableLogging"/>
        <CompilerVisibleItemMetadata Include="AdditionalFiles" MetadataName="SourceGenerator_EnableLogging"/>
    </ItemGroup>
</Project>

<Project Sdk="Microsoft.NET.Sdk">
    <PropertyGroup>
        <SourceGenerator_EnableLogging>true</SourceGenerator_EnableLogging>
    </PropertyGroup>

    <ItemGroup>
        <CompilerVisibleProperty Include="SourceGenerator_EnableLogging"/>
        <CompilerVisibleItemMetadata Include="AdditionalFiles" MetadataName="SourceGenerator_EnableLogging"/>

        <AdditionalFiles Include="file1.txt" Visible="false"/>  <!-- logging will be controlled by default, or global value -->
        <AdditionalFiles Include="file2.txt" SourceGenerator_EnableLogging="true" Visible="false"/>  <!-- always enable logging for this file -->
        <AdditionalFiles Include="file3.txt" SourceGenerator_EnableLogging="false" Visible="false"/> <!-- never enable logging for this file -->
    </ItemGroup>
</Project>

internal static class SourceGeneratorContextExtensions
{
    public static string GetAdditionalFilesOption(
        this GeneratorExecutionContext context,
        AdditionalText additionalText,
        string property,
        string defaultValue = "")
    {
        return !context.AnalyzerConfigOptions.GetOptions(additionalText)
            .TryGetValue($"build_metadata.AdditionalFiles.{property}", out var value)
            ? defaultValue
            : value;
    }
}

[Generator]
public class NotifyPropertyChangedGenerator : ISourceGenerator
{
    public void Initialize(GeneratorInitializationContext context)
    {
    }

    public void Execute(GeneratorExecutionContext context)
    {
        var customRootNamespace = context.GetMSBuildProperty("SourceGenerator_CustomRootNamespace", "Test");

        var globalLoggingSwitch = context.GetMSBuildProperty("SourceGenerator_EnableLogging", "false");
        var emitLoggingGlobal = globalLoggingSwitch.Equals("true", StringComparison.OrdinalIgnoreCase);

        foreach (var file in context.AdditionalFiles)
        {
            var perFileLoggingSwitch = context.GetAdditionalFilesOption(file, "SourceGenerator_EnableLogging");
            var emitLogging = string.IsNullOrWhiteSpace(perFileLoggingSwitch)
                ? emitLoggingGlobal // allow the user to override the global logging on a per-file basis
                : perFileLoggingSwitch.Equals("true", StringComparison.OrdinalIgnoreCase);

            // add the source with or without logging...
        }

The Rust community doubled its number of users over the past two years -- from two million in the first quarter of 2022 to four million in the first quarter of 2024.

A web-based set of tools for generating graphics and other assets that would eventually be in an Android application's res/ directory.  Demo

Currently available asset generators area available for:

• Launcher icons
• Action bar icons
• Notification icons
• Device-framed screenshots
• Simple nine-patches 

We are thrilled to announce the highly anticipated .NET Conf 2024, a free, three-day virtual developer event celebrating the release of .NET 9. Co-organized by the .NET community and Microsoft, this annual tradition continues to grow, and we’re more excited than ever to bring you the latest innovations in .NET. Mark your calendars for November 12th to 14th, 2024, and prepare to be inspired by a wealth of knowledge, creativity, and community engagement.

CSS3 (~2009-2012):

Level 3 CSS specs as defined by the CSSWG. (immutable)

CSS4 (~2013-2018):

Essential features that were not part of CSS3 but are already a fundamental part of CSS.

CSS5 (~2019-2024):

Newer features whose adoption is steadily growing.

CSS6 (~2025+):

Early-stage features that are planned for future CSS.

The collection includes 14 different tools including a Json to Yaml and Yaml to Json converter, a JWT decoder, a Text compare tool, and more.

The full list includes:

• Converters
  • Json <> Yaml
  • Number Base
• Encoders / Decoders
  • HTML
  • URL
  • Base64
  • JWT Decoder
• Formatters
  • Json
• Generators
  • Hash (MD5, SHA1, SHA256, SHA512)
  • UUID 1 and 4
  • Lorem Ipsum
• Text
  • Inspector & Case Converter
  • Regex Tester
  • Text Comparer
  • Markdown Preview
• Graphic
  • Color Blindness Simulator
  • PNG / JPEG Compressor

Some of the tools will have wider appeal, for example, the text comparison tool would be useful for writers and solicitors alike, while the PNG/JPEG compressor could help webmasters. Expect more utilities to join the bundle in the future.

The collection is free, and can be accessed via GitHub here or free via the Microsoft Store.