Deno.copy
deprecatedCopies from src to dst until either EOF (null) is read from src or
an error occurs. It resolves to the number of bytes copied or rejects with
the first error encountered while copying.
const source = await Deno.open("my_file.txt");
const bytesCopied1 = await Deno.copy(source, Deno.stdout);
const destination = await Deno.create("my_file_2.txt");
const bytesCopied2 = await Deno.copy(source, destination);
@deprecated
Use copy from https://deno.land/std/streams/conversion.ts
instead. Deno.copy will be removed in Deno 2.0.