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write_all.ts
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write_all.ts
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// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
// This module is browser compatible.
import type { Writer, WriterSync } from "../types.d.ts";
/**
* @deprecated (will be removed after 1.0.0) Use {@linkcode WritableStream}, {@linkcode ReadableStream.from} and {@linkcode ReadableStream.pipeTo} instead.
*
* Write all the content of the array buffer (`arr`) to the writer (`w`).
*
* ```ts
* import { Buffer } from "https://deno.land/std@$STD_VERSION/io/buffer.ts";
* import { writeAll } from "https://deno.land/std@$STD_VERSION/streams/write_all.ts";
* // Example writing to stdout
* let contentBytes = new TextEncoder().encode("Hello World");
* await writeAll(Deno.stdout, contentBytes);
*
* // Example writing to file
* contentBytes = new TextEncoder().encode("Hello World");
* const file = await Deno.open('test.file', {write: true});
* await writeAll(file, contentBytes);
* file.close();
*
* // Example writing to buffer
* contentBytes = new TextEncoder().encode("Hello World");
* const writer = new Buffer();
* await writeAll(writer, contentBytes);
* console.log(writer.bytes().length); // 11
* ```
*/
export async function writeAll(w: Writer, arr: Uint8Array) {
let nwritten = 0;
while (nwritten < arr.length) {
nwritten += await w.write(arr.subarray(nwritten));
}
}
/**
* @deprecated (will be removed after 1.0.0) Use {@linkcode WritableStream}, {@linkcode ReadableStream.from} and {@linkcode ReadableStream.pipeTo} instead.
*
* Synchronously write all the content of the array buffer (`arr`) to the
* writer (`w`).
*
* ```ts
* import { Buffer } from "https://deno.land/std@$STD_VERSION/io/buffer.ts";
* import { writeAllSync } from "https://deno.land/std@$STD_VERSION/streams/write_all.ts";
*
* // Example writing to stdout
* let contentBytes = new TextEncoder().encode("Hello World");
* writeAllSync(Deno.stdout, contentBytes);
*
* // Example writing to file
* contentBytes = new TextEncoder().encode("Hello World");
* const file = Deno.openSync('test.file', {write: true});
* writeAllSync(file, contentBytes);
* file.close();
*
* // Example writing to buffer
* contentBytes = new TextEncoder().encode("Hello World");
* const writer = new Buffer();
* writeAllSync(writer, contentBytes);
* console.log(writer.bytes().length); // 11
* ```
*/
export function writeAllSync(w: WriterSync, arr: Uint8Array) {
let nwritten = 0;
while (nwritten < arr.length) {
nwritten += w.writeSync(arr.subarray(nwritten));
}
}