@atcute/varint

protobuf-style LEB128 varint codec.

npm install @atcute/varint

import { encode, decode, encodingLength } from '@atcute/varint';

// encoding
const encoded: number[] = [];
const bytesWritten = encode(420, encoded);
// -> encoded: [164, 3]
// -> bytesWritten: 2

// decoding
const { value, nextOffset } = decode(encoded);
// -> value: 420
// -> nextOffset: 2

// check encoding length beforehand
encodingLength(420); // -> 2
encodingLength(16383); // -> 2
encodingLength(16384); // -> 3