Backend development: C#

Sefism.Backend development: C#

Tauseef Fayyaz

A to Z

Glossary

Every concept in this sheet, plus the smaller terms it uses. Select a concept to open its card.

A

async/await and Task: An async method returns a Task or Task<T>; await frees the thread while I/O is in flight.

C

C# basics: types, classes and records: C# has value types (int, bool, struct) and reference types (class, string).

D

DI container and service lifetimes: ASP.NET Core has a built-in container.

G

Git commits and branches: Git records snapshots of your project as commits.

L

LINQ: Query operators like Where, Select and GroupBy over collections.

N

Nullable reference types: With nullable reference types on (the default in new projects), string means never null and string? means may be null.

P

Pull requests: A pull request proposes merging a branch into main and shows the diff, CI results and review comments in one place.

T

Terminal essentials: A shell runs commands such as cd, ls, cat, grep and curl, and pipes (|) feed one command's output into the next.
The dotnet CLI and NuGet: The dotnet command creates, builds, runs and tests projects; NuGet is the package registry, and packages are listed in the .csproj file.