"Level Up Your Web Apps" chap 3 pattern matching in depth example

package main

import (
	"net/http"
	"fmt"
)

func main() {
	mux := http.NewServeMux()

	mux.HandleFunc("/articles/", func (w http.ResponseWriter, r *http.Request) {
		fmt.Fprintln(w, "Hello from /articles/")
	})
	mux.HandleFunc("/articles/latest/", func (w http.ResponseWriter, r *http.Request) {
		fmt.Fprintln(w, "Hello from /articles/latest")
	})
	mux.HandleFunc("/users", func (w http.ResponseWriter, r *http.Request) {
		fmt.Fprintln(w, "Hello from /users")
	})

	http.ListenAndServe(":8000", mux)
}