function Deno.writeAllSync DeprecatedThis will be removed in Deno 2.0. See the Deno 1.x to 2.x Migration Guide for migration instructions. writeAllSync(w: WriterSync, arr: Uint8Array): void Synchronously write all the content of the array buffer (arr) to the writer (w). Synchronously write all the content of the array buffer (arr) to the writer (w). Parameters w: WriterSync arr: Uint8Array Return Type void