Nine self-contained tutorials. No internet needed — everything runs from these folders.
C# language, async and concurrency, LINQ, EF Core, ASP.NET Core, Web API design, security, patterns, real-world scenarios and classic ASP.NET.
App wiring, hooks, rendering, Context and Redux, forms, routing, the API layer, auth with JWT and MSAL, performance and TanStack Query — with live editable examples.
Components and data binding, directives and pipes, lifecycle hooks, services and DI, forms, routing, HttpClient and interceptors, RxJS, performance and the senior questions.
Indexes, views, procedures and functions, CTEs and window functions, keys and normalization, transactions and isolation, deadlocks, and performance troubleshooting.
Service boundaries, messaging and Service Bus, retries and circuit breakers, idempotent payments, saga and eventual consistency, gateways and observability.
App Service and hosting, deployment slots, blue-green and canary releases, Functions, data and storage, Key Vault and managed identity, App Insights, APIM and CI/CD.
Envelope, fault and WSDL, WS-Security and interop, WCF bindings and contracts — and consuming a legacy SOAP service from .NET Core behind a REST facade.
Fundamentals and JavaScript essentials, modules, core HTTP, Express, async and the event loop, middleware, API architecture, JWT auth and validation.
Your project, technical challenges, production incidents, disagreement, mentoring, decisions and deadlines — the top 20 questions, built on five short stories.
806 questions across 81 modules. Each tutorial has its own collapsible categories, a one-line cheat sheet you can print, and flashcards — and remembers which modules you've marked as done.