Commit e4cdb11

@@ -88,7 +88,14 @@ Web server starts cleanly, logs startup message, and serves requests through pro
 
 ## Implementation Log
 
-*Will be updated during implementation*
+### 2025-07-20 - Implementation Complete
+- Enhanced handler function with proper documentation explaining its role
+- Improved ServeMux initialization with clear comments about router functionality
+- Enhanced logging with more informative startup message including full URL
+- Added comprehensive comments explaining the three essential web application components
+- Improved code organization and readability while maintaining functionality
+- Verified code formatting with `go fmt` and `go vet`
+- Build successful with `go build`
 
 ---
 

@@ -5,15 +5,25 @@ import (
 	"net/http"
 )
 
+// home is our handler function which writes a "Hello World" response.
+// It demonstrates the handler component of our web application.
 func home(w http.ResponseWriter, r *http.Request) {
 	w.Write([]byte("Hello World"))
 }
 
 func main() {
+	// Initialize a new servemux (router) - this stores the mapping between
+	// URL patterns and their corresponding handlers.
 	mux := http.NewServeMux()
+
+	// Register the home function as the handler for the "/" URL pattern.
 	mux.HandleFunc("/", home)
 
-	log.Print("starting server on :4000")
+	// Print a log message to indicate the server is starting.
+	log.Printf("Starting server on http://localhost:4000")
+
+	// Start the web server on port 4000. If ListenAndServe returns an error
+	// we use log.Fatal() to log the error and terminate the program.
 	err := http.ListenAndServe(":4000", mux)
 	log.Fatal(err)
 }