Golang bytes.NewReader() function example

package bytes

NewReader returns a new Reader reading from the input.

Golang bytes.NewReader() function usage example

 package main

 import (
 "bytes"
 "fmt"
 )

 func main() {
 reader := bytes.NewReader([]byte("abc"))

 fmt.Println(reader.Len())
 }

Output :

3

Reference :

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