Question

How to lowercase a single byte from a slice of bytes in Go

Answer 1

package main
 
import (
    "fmt"
    "unicode"
)
 
func main() {
   slice := []byte{'G', 'O', ' ' , '1', '.', '1', '4', '.', '2'} 
   
   pos := 0      
   slice[pos] = byte(unicode.ToLower(rune(slice[pos])))
 
   fmt.Printf("%s", slice) 
}
 
 
 
/*
run:
 
gO 1.14.2
 
*/

 

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