Deno Reference for Deno.copy

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>