String Length in Go

Use len(...) to get the length of a Go string.

message := "I love pancakes"
fmt.Println(len(message))

Because indexes start at 0, the last position is len(message) - 1:

fmt.Println(string(message[len(message)-1]))

You can also combine len with slicing. For example, the last 5 characters start at len(message) - 5:

fmt.Println(message[len(message)-5:])

Assignment
Follow the Coding Tutorial and practice using len with strings.