Question

How to replace all occurrences of an element in slice of bytes in Go

Answer 1

package main
  
import (
    "fmt"
    "bytes"
)
  
func main() {
    slice := []byte{'a', 'b', 'c' , 'd', 'b', 'b', 'x', 'y', 'b', 'z', 'z'} 

    newslice := bytes.ReplaceAll(slice, []byte("b"), []byte("W")) 

    fmt.Printf("%s", newslice)    
}
  
  
  
/*
run:
  
aWcdWWxyWzz
  
*/

 

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Answer 2

package main
  
import (
    "fmt"
    "bytes"
)
  
func main() {
    newslice := bytes.ReplaceAll([]byte("abcbbcdebbzz"), []byte("b"), []byte("W")) 

    fmt.Printf("%s", newslice)    
}
  
  
  
/*
run:
  
aWcWWcdeWWzz
  
*/

 

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