Learn Blazor - 10 Code Examples & CST Typing Practice Test
Blazor is a Microsoft framework for building interactive web applications using C# and .NET, running client-side via WebAssembly or server-side via SignalR.
Learn BLAZOR with Real Code Examples
Updated Nov 25, 2025
Performance Notes
WebAssembly apps have higher initial load but run efficiently after load
Server apps depend on SignalR latency
Static content can be cached to improve load times
Efficient state management prevents unnecessary UI re-renders
Use virtualization for large lists or tables
Security Notes
Use ASP.NET Core Identity for authentication
Validate inputs on both client and server
Protect APIs with proper authorization
Avoid storing sensitive info in client-side code
Ensure HTTPS and secure headers are enabled
Monitoring Analytics
Track API call performance
Log errors in server-side apps
Monitor user interactions
Measure WebAssembly load times
Use Application Insights or other telemetry
Code Quality
Follow component encapsulation
Use DI for services
Unit-test components and services
Keep Razor and C# logic clean and maintainable
Follow .NET naming and coding conventions
Frequently Asked Questions about Blazor
What is Blazor?
Blazor is a Microsoft framework for building interactive web applications using C# and .NET, running client-side via WebAssembly or server-side via SignalR.
What are the primary use cases for Blazor?
Building interactive web applications in C#. Creating reusable UI components. Developing full-stack .NET web apps. Integrating with ASP.NET Core APIs. Rapid prototyping and enterprise dashboards
What are the strengths of Blazor?
Write web apps entirely in C#. Share code between client and server. Strong tooling via Visual Studio and .NET CLI. Integrated security and authentication features. Enterprise-grade framework with long-term support
What are the limitations of Blazor?
WebAssembly apps may have larger initial load. Limited third-party UI components compared to JavaScript frameworks. Some JavaScript interop is still needed for advanced browser APIs. SEO optimization is more complex for WebAssembly apps. Smaller developer ecosystem than React or Angular
How can I practice Blazor typing speed?
CodeSpeedTest offers 10+ real Blazor code examples for typing practice. You can measure your WPM, track accuracy, and improve your coding speed with guided exercises.