Convert Uppercase to Lowercase Characters in Go using Binary Operator

In Golang, we can use the binary operators "&" (AND) and "|" (OR) to convert strings from lowercase to uppercase and vice versa. Let's take a simple example and understand how to use these binary operators in Golang. 

Example

package main

import "fmt"

func main(){
   fmt.Printf("Lowercase characters using OR operator: ")
   
   for ch:='A'; ch<='Z'; ch++ {
      fmt.Printf(string(ch | ' '))
   }
   fmt.Println()

   fmt.Printf("Uppercase characters using AND operator: ")

   for ch:='a'; ch<='z'; ch++ {
      fmt.Printf(string(ch & '_'))
   }
}

Output

On execution, it will produce the following output:

Lowercase characters using OR operator: abcdefghijklmnopqrstuvwxyz
Uppercase characters using AND operator: ABCDEFGHIJKLMNOPQRSTUVWXYZ