Initial commit

12-switch/08-parts-of-the-day/main.go

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+// For more tutorials: https://blog.learngoprogramming.com
+//
+// Copyright © 2018 Inanc Gumus
+// Learn Go Programming Course
+// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
+//
+
+package main
+
+import (
+	"fmt"
+	"time"
+)
+
+func main() {
+	// time.Now() gets the current time
+	// and in turn, .Hour() gets the current hour from it
+
+	// h := time.Now().Hour()
+	// fmt.Println("Current hour is", h)
+
+	switch h := time.Now().Hour(); {
+	case h >= 18: // 18 to 23
+		fmt.Println("good evening")
+	case h >= 12: // 12 to 18
+		fmt.Println("good afternoon")
+	case h >= 6: // 6 to 12
+		fmt.Println("good morning")
+	default: // 0 to 5
+		fmt.Println("good night")
+	}
+
+	// h is not available here
+	// it's bound to switch statement's block
+	// fmt.Println(h)
+}