Function crc32

packages/dev/s2-docs/src/zip.tsx:22–28

(arr: Uint8Array)

})();

function crc32(arr: Uint8Array) {
  let crc = -1;
  for (let i = 0; i < arr.length; i++) {
    crc = (crc >>> 8) ^ CRC32_TABLE[(crc ^ arr[i]) & 0xff];
  }
  return (crc ^ -1) >>> 0;
}

function putUint32s(arr: Uint8Array, offset: number, ...values: number[]) {
  let dv = new DataView(arr.buffer);