Go

1. A Tour of Go

   Interactive basics: packages, variables, functions, flow control, structs, slices, maps, methods, interfaces.

2. How to write Go code

   Packages, modules, import paths, go build/install and project layout.

3. Slices, arrays and maps

   Array vs slice semantics, slice headers, append and capacity, copy, and map behavior.

4. Effective Go

   Idiomatic naming, formatting, control structures, functions, composite literals, allocation with new/make.

5. Methods and interfaces

   Pointer vs value receivers, implicit interface satisfaction, type assertions, embedding and the empty interface.

6. Error handling

   The error interface, wrapping with %w, errors.Is/As, sentinel errors and returning errors as values.

7. Defer, panic and recover

   Deferred call ordering, resource cleanup, panics, and recovering from them.

8. Goroutines and channels

   Goroutines, channels (buffered/unbuffered), select, sync primitives, and 'share memory by communicating'.

9. Pipelines and cancellation

   Pipeline pattern, fan-out/fan-in, done channels and cancellation.

10. Context

    context.Context for cancellation, deadlines and request-scoped values across goroutines.

11. The Go memory model

    Happens-before ordering, synchronization guarantees, data races and atomic operations.

12. Data race detector

    Using -race to detect data races and understanding its reports.

13. Generics

    Type parameters, constraints, type sets, comparable and generic functions/types.

14. Modules and dependencies

    go.mod, semantic versioning, minimal version selection, go.sum, replace directives, workspaces.

15. Testing and fuzzing

    go test, table-driven tests, benchmarks, and native fuzz testing.

16. Reflection

    reflect package, interface values to reflection objects, and the laws of reflection.

17. Accessing relational databases

    database/sql handles, queries, prepared statements, transactions, connection pooling and SQL injection.

18. Garbage collector and diagnostics

    GC behavior, GOGC and memory limit tuning, profiling with pprof, tracing, and diagnostics.

19. Language specification

    Authoritative reference for types, declarations, expressions, statements and package initialization.

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.

Source: endoflife.date