Question

How to replace specific element N times 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'} 

    N :=1
    newslice := bytes.Replace(slice, []byte("b"), []byte("W"), N) 

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

 

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Answer 2

package main
  
import (
    "fmt"
    "bytes"
)
  
func main() {
    N := 2
    newslice := bytes.Replace([]byte("abcbbcdebbzz"), []byte("b"), []byte("W"), N) 

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

 

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