defer_evaluation.go

func main() {
		m := map[string]int{
			"one": 1,
		}
		defer func() {
			fmt.Println("deferred first", m)
		}()
		// a function will evaluate upon defer
		// an expression evaluates immediately
		defer fmt.Println("deferred second", m)

		m = map[string]int{
			"one": 2,
		}
}