switch.go

package main

import (
	"fmt"
	"time"
)

func main() {
	i := 2
	fmt.Println("Write", i, "as")
	switch i {
	case 0:
		fmt.Println("zero")
	case 1:
		fmt.Println("one")
	case 2:
		fmt.Println("two")
	default:
		fmt.Println("something else")
	}

	switch time.Now().Weekday() {
	case time.Saturday, time.Sunday:
		fmt.Println("Weekend")
	default:
		fmt.Println("weekday")
	}

	t := time.Now()
	switch {
	case t.Hour() < 12:
		fmt.Println("Before noon")
	default:
		fmt.Println("After noon")
	}

	whatAmI := func(i interface{}) {
		switch i.(type) {
		case bool:
			fmt.Println("Boolean")
		case int:
			fmt.Println("Integer")
		default:
			fmt.Println("some other type")
		}
	}

	whatAmI(100)
	whatAmI(true)
	whatAmI(1.2345)

}