func Replace(ori_slice, old_slice, new_slice []byte, m int) []byte

// Go program to illustrate how to replace
// the element of the slice of bytes
package main
  
import (
    "bytes"
    "fmt"
)
  
// Main function
func main() {
  
    // Creating and initializing
    // the slice of bytes
    // Using shorthand declaration
    slice_1 := []byte{'G', 'E', 'E', 'K', 'S'}
    slice_2 := []byte{'A', 'P', 'P', 'L', 'E'}
  
    // Displaying slices
    fmt.Println("Original slice:")
    fmt.Printf("Slice 1: %s", slice_1)
    fmt.Printf("\nSlice 2: %s", slice_2)
  
    // Replacing the element
    // of the given slices
    // Using Replace function
    res1 := bytes.Replace(slice_1, []byte("E"), []byte("e"), 2)
    res2 := bytes.Replace(slice_2, []byte("P"), []byte("p"), 1)
  
    // Display the results
    fmt.Printf("\n\nNew Slice:")
    fmt.Printf("\nSlice 1: %s", res1)
    fmt.Printf("\nSlice 2: %s", res2)
}

Original slice:
Slice 1: GEEKS
Slice 2: APPLE

New Slice:
Slice 1: GeeKS
Slice 2: ApPLE

// Go program to illustrate how to replace
// the specified element from the given
// slice of bytes
package main
  
import (
    "bytes"
    "fmt"
)
  
// Main function
func main() {
  
    // Replacing the element
    // of the given slices
    // Using Replace function
    res1 := bytes.Replace([]byte("GeeksforGeeks, Geeks, Geeks"), []byte("eks"), []byte("EKS"), 3)
  
    res2 := bytes.Replace([]byte("Hello! i am Puppy, Puppy, Puppy"), []byte("upp"), []byte("ISL"), 2)
  
    res3 := bytes.Replace([]byte("GFG, GFG, GFG"), []byte("GFG"), []byte("geeks"), -1)
  
    res4 := bytes.Replace([]byte("I like icecream"), []byte("like"), []byte("love"), 0)
  
    // Display the results
    fmt.Printf("Result 1: %s", res1)
    fmt.Printf("\nResult 2: %s", res2)
    fmt.Printf("\nResult 3: %s", res3)
    fmt.Printf("\nResult 4: %s", res4)
}

Result 1: GeEKSforGeEKS, GeEKS, Geeks
Result 2:Hello! i am PISLy, PISLy, Puppy
Result 3:geeks, geeks, geeks
Result 4:I like icecream