Bitstring

A Bitstring module for universal JavaScript.

Install

To install get the latest version from NPM:

npm install @digitalbazaar/bitstring

To install locally for development:

git clone https://github.com/digitalbazaar/bitstring.git
cd bitstring
npm install

Usage

import {Bitstring} from '@digitalbazaar/bitstring';

// You can make a new instance by passing in a length
const bitstring = new Bitstring({length: 10});

// OR by passing in a buffer
const buffer = Uint8Array.from([255]);
const bitstring = new Bitstring({buffer});

API

set(position, on)

Sets the value of a bit for the given position to the given boolean.

bitstring.set(1, true);

get(position)

Gets the value of a bit for the given position.

bitstring.get(3);

encodeBits()

Compresses and encodes bits to a base64url encoded string.

await bitstring.encodeBits();

decodeBits({encoded})

Decodes and uncompresses a given base64url encoded string to a Uint8Array.

await Bitstring.decodeBits({encoded});

compressBits()

Compresses bits to a Uint8Array.

await bitstring.compressBits();

uncompressBits({compressed})

Uncompresses compressed bits.

await Bitstring.uncompressBits({compressed});

Contribute

Please follow the existing code style.

PRs accepted.

If editing the Readme, please conform to the standard-readme specification.

Commercial Support

Commercial support for this library is available upon request from Digital Bazaar: [email protected]

License

BSD-3-Clause © Digital Bazaar