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02b9046a0e
According to spec, `TextEncoder()` takes no parameters. However `TextEncoder("utf-8")` is written in example codes.
Spec of TextEncoder: https://www.w3.org/TR/encoding/#interface-textencoder
MDN: https://developer.mozilla.org/ja/docs/Web/API/TextEncoder/TextEncoder#Parameters
50 lines
1.5 KiB
TypeScript
50 lines
1.5 KiB
TypeScript
// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
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import * as msg from "gen/msg_generated";
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import * as flatbuffers from "./flatbuffers";
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import * as dispatch from "./dispatch";
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/** Write a new file, with given filename and data synchronously.
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*
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* import { writeFileSync } from "deno";
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*
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* const encoder = new TextEncoder();
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* const data = encoder.encode("Hello world\n");
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* writeFileSync("hello.txt", data);
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*/
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export function writeFileSync(
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filename: string,
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data: Uint8Array,
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perm = 0o666
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): void {
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dispatch.sendSync(...req(filename, data, perm));
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}
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/** Write a new file, with given filename and data.
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*
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* import { writeFile } from "deno";
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*
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* const encoder = new TextEncoder();
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* const data = encoder.encode("Hello world\n");
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* await writeFile("hello.txt", data);
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*/
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export async function writeFile(
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filename: string,
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data: Uint8Array,
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perm = 0o666
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): Promise<void> {
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await dispatch.sendAsync(...req(filename, data, perm));
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}
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function req(
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filename: string,
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data: Uint8Array,
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perm: number
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): [flatbuffers.Builder, msg.Any, flatbuffers.Offset, Uint8Array] {
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const builder = flatbuffers.createBuilder();
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const filename_ = builder.createString(filename);
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msg.WriteFile.startWriteFile(builder);
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msg.WriteFile.addFilename(builder, filename_);
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msg.WriteFile.addPerm(builder, perm);
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const inner = msg.WriteFile.endWriteFile(builder);
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return [builder, msg.Any.WriteFile, inner, data];
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}
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