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cabe63eb05
* My original implementation of `fs.appendFile` used an async API, which, though it would work fine as a polyfill, wasn't an exact match with the Node API. This PR reworks that API to mimic the Node API fully as a synchronous void function with an async internal implementation. * Refactor move of other internal fs `dirent` and `dir` classes to the _fs internal directory.
21 lines
548 B
TypeScript
21 lines
548 B
TypeScript
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
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export type CallbackWithError = (err?: Error) => void;
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export interface FileOptions {
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encoding?: string;
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mode?: number;
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flag?: string;
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}
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export function isFileOptions(
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fileOptions: string | FileOptions | undefined
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): fileOptions is FileOptions {
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if (!fileOptions) return false;
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return (
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(fileOptions as FileOptions).encoding != undefined ||
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(fileOptions as FileOptions).flag != undefined ||
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(fileOptions as FileOptions).mode != undefined
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);
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}
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