How to Clear a bytes.Buffer in Go

Created May 14, 2022 at 9:07

Modified May 14, 2022 at 9:23

Using buffer.Reset Function

The buffer.Reset() function resets the buffer to be empty, but it retains the underlying storage for use by future writes. Reset is the same as Truncate(0).

See the following example:

package main

import (
  "bytes"
  "fmt"
)

func main() {

  var b bytes.Buffer // A Buffer needs no initialization.
  b.Write([]byte("Hello "))

  b.ReadByte()
  fmt.Printf("%v\n", b)
  // Clear
  b.Reset()
  fmt.Printf("%v\n", b)
}