IServiceCollection Explained FAST | ASP.NET Dependency Injection

IServiceCollection explained in under a minute. 🚀 It's your app's service registry — a catalog of every dependency your .NET app can use. You register services in Program.cs with AddSingleton, AddScoped, or AddTransient, and .NET builds a ServiceProvider that injects them into your classes automatically. ▶ Service lifetimes: • Singleton — one instance for the whole app • Scoped — one instance per request • Transient — a new instance every time That's dependency injection: clean, testable, decoupled code — no "new" keyword, no tight coupling. Follow for more .NET & C# shorts! 👇 #dotnet #csharp #dependencyinjection Quick recap 👇 Singleton = one for the whole app Scoped = one per request Transient = new every time What .NET topic should I cover next?