---
name: "Binary.poke"
section: "3kaya"
platform: "linux"
package: "kaya"
version: "0.4.4-6.2"
release: "Debian 8 (Jessie)"
platforms: ["linux"]
url: "https://new.carta.tech/Binary.poke"
---

# Binary.poke(3kaya)

Modify binary data.

## NAME

Binary::poke - Modify binary data.

## SYNOPSIS

**Void poke(** *var Binary block, Int offset, Int val* **)**

## ARGUMENTS

**block** The binary block

**offset** The location to write to (starting from zero)

**val** The byte value to write.

## DESCRIPTION

Poke the value *val* into the offset *offset*\
  An **Binary.OffsetOutOfRange (3kaya)** exception will be thrown  if it attempts to access a value outside the block.

## AUTHORS

Kaya standard library by Edwin Brady, Chris Morris and others (kaya@kayalang.org). For further information see http://kayalang.org/

## LICENSE

The Kaya standard library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License (version 2.1 or any later version) as published by the Free Software Foundation.

## RELATED

**Binary.Binary (3kaya)**

**Binary.peek (3kaya)**

**Binary.pokeString (3kaya)**

**Binary.setBlockData (3kaya)**