Blazor is a framework from Microsoft for building interactive client-side web UI with .NET. It allows developers to build full-stack web applications using C#, Razor, and HTML, instead of relying on JavaScript frameworks like Angular or React for client-side logic. With Blazor, you can use the same programming language and libraries for both client-side and server-side development.

Key Features:

1. WebAssembly Support: Blazor WebAssembly runs on the client, in the browser, using WebAssembly. This eliminates the need for JavaScript for client-side logic.

2. Server-Side Rendering: Blazor Server runs on the server, where UI rendering occurs. The UI updates, event handling, and JavaScript calls are handled over a SignalR connection.

3. Component-Based Architecture: Develop modular and reusable components that encompass rendering logic, data, and event handling.

4. Two-way Data Binding: Supports two-way data binding similar to Angular and React.

5. Dependency Injection: Native support for dependency injection, a feature well-known in the .NET ecosystem.

6. Interoperability: You can still use JavaScript libraries when you need to.

7. Routing, Layouts, and Forms: It provides all the necessary tools and libraries to build complete, form-based web applications with validation.

How To Get Started:

1. Install SDK: Make sure you have the latest version of the .NET SDK installed.

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   dotnet --version


2. Create Project: Create a new Blazor project using the following command.

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   dotnet new blazorwasm -o MyBlazorApp


   Or for server-side:

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   dotnet new blazorserver -o MyBlazorApp


3. Navigate and Run: Go to the project directory and run the application.

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   cd MyBlazorApp
dotnet run


4. Open Browser: Navigate to https://localhost:5001/ to see your Blazor app.