Function copy

bytes/copy.ts:43–51

(src: Uint8Array, dst: Uint8Array, offset = 0)

 * destination array.
 */
export function copy(src: Uint8Array, dst: Uint8Array, offset = 0): number {
  offset = Math.max(0, Math.min(offset, dst.byteLength));
  const dstBytesAvailable = dst.byteLength - offset;
  if (src.byteLength > dstBytesAvailable) {
    src = src.subarray(0, dstBytesAvailable);
  }
  dst.set(src, offset);
  return src.byteLength;
}