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denoland-deno/std/node/_fs/_fs_common.ts

18 lines
491 B
TypeScript

// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
export interface FileOptions {
encoding?: string;
mode?: number;
flag?: string;
}
export function isFileOptions(
fileOptions: string | FileOptions | undefined
): fileOptions is FileOptions {
if (!fileOptions) return false;
return (
(fileOptions as FileOptions).encoding != undefined ||
(fileOptions as FileOptions).flag != undefined ||
(fileOptions as FileOptions).mode != undefined
);
}