Golang bytes.LastIndex() function example

package bytes

LastIndex returns the index of the last instance of the search key in the given input and returns -1 if there is no match.

Golang bytes.LastIndex() function usage example

 package main

 import (
 "bytes"
 "fmt"
 )

 func main() {

 str := []byte("abcdefg...xyz")
 fmt.Println(bytes.LastIndex(str, []byte("x")))

 str2 := []byte("abcxyz")
 fmt.Println(bytes.LastIndex(str2, []byte("x")))
 }

Output :

10

3

Reference :

http://golang.org/pkg/bytes/#LastIndex