Go Standard Library Cookbook

How to do it...

1. Open the console and create the folder chapter02/recipe09.
2. Navigate to the directory.
3. Create the case.go file with the following content:

        package main        import (          "fmt"          "strings"          "unicode"        )        const email = "[e-mail]"        const name = "isaac newton"        const upc = "upc"        const i = "i"        const snakeCase = "first_name"        func main() {          // For comparing the user input          // sometimes it is better to          // compare the input in a same          // case.          input := "[e-mail]"          input = strings.ToLower(input)          emailToCompare := strings.ToLower(email)          matches := input == emailToCompare          fmt.Printf("Email matches: %t\n", matches)          upcCode := strings.ToUpper(upc)          fmt.Println("UPPER case: " + upcCode)           // This digraph has different upper case and // title ...