Function byteAt

packages/service-worker/worker/src/sha1.ts:135–141

(str: string | Uint8Array, index: number)

}

function byteAt(str: string | Uint8Array, index: number): number {
  if (typeof str === 'string') {
    return index >= str.length ? 0 : str.charCodeAt(index) & 0xff;
  } else {
    return index >= str.byteLength ? 0 : str[index] & 0xff;
  }
}

function wordAt(str: string | Uint8Array, index: number, endian: Endian): number {
  let word = 0;