Deno.copy - Deno documentation
function Deno.copy
copy(
src: Reader,
dst: Writer,
options?: { bufSize?: number; },
): Promise<number>
Deprecated

This will be removed in Deno 2.0. See the Deno 1.x to 2.x Migration Guide for migration instructions.

Copies 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.

Parameters

src: Reader

The source to copy from

dst: Writer

The destination to copy to

optional
options: { bufSize?: number; }

Can be used to tune size of the buffer. Default size is 32kB

Return Type

Promise<number>