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Module

std/io/types.ts>Writer

Deno standard library
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interface Writer
import { type Writer } from "https://deno.land/std@0.217.0/io/types.ts";

An abstract interface which when implemented provides an interface to write bytes from an array buffer to a file/resource asynchronously.

Methods

write(p: Uint8Array): Promise<number>

Writes p.byteLength bytes from p to the underlying data stream. It resolves to the number of bytes written from p (0 <= n <= p.byteLength) or reject with the error encountered that caused the write to stop early. write() must reject with a non-null error if would resolve to n < p.byteLength. write() must not modify the slice data, even temporarily.

Implementations should not retain a reference to p.