iobuffer

Read and write binary data in ArrayBuffers

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Popularity

Downloads/wk

15.6K

GitHub Stars

33

Maintenance

Last Commit

5mos ago

Contributors

8

Package

Dependencies

0

Size (min+gzip)

1.9KB

License

MIT

Type Definitions

Built-In

Tree-Shakeable

Yes?

Categories

Readme

iobuffer

Read and write binary data in ArrayBuffers.

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Installation

npm i iobuffer

API

Complete API documentation

Usage example

const { IOBuffer } = require('iobuffer');

const io = new IOBuffer();
// Pointer offset is 0
io.writeChars('Hello world') // Write 11 chars, pointer offset now 11
  .writeUint32(42) // Write 32-bit int (default is little-endian), pointer offset now 15
  .setBigEndian() // Switch to big-endian mode
  .writeUint32(24) // Write another 32-bit int, but big-endian, pointer offset now 19
  .mark() // Bookmark current pointer offset (19)
  .skip(2) // Pointer offset now 21
  .writeBoolean(true) // Write 0xff, pointer offset now 22
  .reset() // Go to bookmarked pointer offset, pointer offset now 19
  .setLittleEndian() // Go back to little endian mode
  .writeUint16(18) // Write 16-bit unsigned integer in the previously skipped 2 bytes, pointer offset now 21
  .rewind() // Pointer offset back to 0
  .toArray(); // Get a Uint8Array over the written part [0-21] of the internal ArrayBuffer

License

MIT

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