Function toBuffer

packages/engine.io-parser/lib/encodePacket.ts:17–28

(data: BufferSource, forceBufferConversion: boolean)

};

const toBuffer = (data: BufferSource, forceBufferConversion: boolean) => {
  if (
    Buffer.isBuffer(data) ||
    (data instanceof Uint8Array && !forceBufferConversion)
  ) {
    return data;
  } else if (data instanceof ArrayBuffer) {
    return Buffer.from(data);
  } else {
    return Buffer.from(data.buffer, data.byteOffset, data.byteLength);
  }
};

let TEXT_ENCODER;