How to replace all the elements in slice of bytes in Golang?
In Go language slice is more powerful, flexible, convenient than an array, and is a lightweight data structure. The slice is a variable-length sequence which stores elements of a similar type, you are not allowed to store different type of elements in the same slice.
In the Go slice of bytes, you are allowed to replace all the elements in the given slice using the ReplaceAll() functions. This function is used to replace all the elements of the old slice with a new slice. If the given old slice is empty, then it matches at the start of the slice and after each UTF-8 sequence it is yielding up to m+1 replacement for the m-rune string. It is defined under the bytes package so, you have to import bytes package in your program for accessing RepeatAll function.
Syntax:
func ReplaceAll(ori_slice, old_slice, new_slice []byte) []byte
Here, ori_slice is the original slice of bytes, old_slice is the slice which you want to replace, and new_slice is the new slice which replaces the old_slice.
Example 1:
package main
import (
"bytes"
"fmt"
)
func main() {
slice_1 := []byte{ 'G' , 'G' , 'G' , 'E' ,
'E' , 'E' , 'E' , 'K' , 'S' , 'S' , 'S' }
slice_2 := []byte{ 'A' , 'A' , 'P' ,
'P' , 'P' , 'L' , 'E' , 'E' }
fmt.Println( "Original slice:" )
fmt.Printf( "Slice 1: %s" , slice_1)
fmt.Printf( "\nSlice 2: %s" , slice_2)
res1 := bytes.ReplaceAll(slice_1, []byte( "E" ), []byte( "e" ))
res2 := bytes.ReplaceAll(slice_2, []byte( "P" ), []byte( "p" ))
fmt.Printf( "\n\nNew Slice:" )
fmt.Printf( "\nSlice 1: %s" , res1)
fmt.Printf( "\nSlice 2: %s" , res2)
}
|
Output:
Original slice:
Slice 1: GGGEEEEKSSS
Slice 2: AAPPPLEE
New Slice:
Slice 1: GGGeeeeKSSS
Slice 2: AApppLEE
Example 2:
package main
import (
"bytes"
"fmt"
)
func main() {
res1 := bytes.ReplaceAll([]byte( "GeeksforGeeks, Geeks, Geeks" ), []byte( "eks" ), []byte( "EKS" ))
res2 := bytes.ReplaceAll([]byte( "Hello! i am Puppy, Puppy, Puppy" ), []byte( "upp" ), []byte( "ISL" ))
res3 := bytes.ReplaceAll([]byte( "GFG, GFG, GFG" ), []byte( "GFG" ), []byte( "geeks" ))
res4 := bytes.ReplaceAll([]byte( "I like like icecream" ), []byte( "like" ), []byte( "love" ))
fmt.Printf( "Result 1: %s" , res1)
fmt.Printf( "\nResult 2: %s" , res2)
fmt.Printf( "\nResult 3: %s" , res3)
fmt.Printf( "\nResult 4: %s" , res4)
}
|
Output:
Result 1: GeEKSforGeEKS, GeEKS, GeEKS
Result 2: Hello! i am PISLy, PISLy, PISLy
Result 3: geeks, geeks, geeks
Result 4: I love love icecream
Last Updated :
26 Aug, 2019
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