Using Go's DefaultServeMux by passing nil to http.ListenAndServe and registering custom handler types with http.Handle.

How to handle file uploads in Go using r.FormFile, reading the uploaded content, and displaying it in an HTML form.

Using Go template pipelines and custom FuncMap functions for date formatting, math operations, and chaining function calls in templates.

Working with Go templates including ParseGlob, ExecuteTemplate, passing structs and slices to templates, and rendering nested data structures.

Comprehensive examples of Go switch statements including simple switches, multi-value cases, initializer syntax, tagless switches, type switches, and early exit with break.

Working with structs in Go including struct definitions, anonymous structs, struct embedding, and struct tags for reflection.

Implementing a simple multiplexer in Go by defining a custom type that satisfies the http.Handler interface with ServeHTTP.

Building a simple HTTP multiplexer from scratch in Go using raw TCP connections, request parsing, and a switch-based router.

A minimal TCP echo server in Go that reads input from clients and echoes it back with a 10-second connection timeout.

Hands-on example of building a simple TCP server in Go that parses HTTP requests, extracts the method and path, and returns an HTML response.