truncate

truncate(path, len?, options?): Promise<void>

Defined in: plugins/fs/guest-js/index.ts:1022

Truncates or extends the specified file, to reach the specified len. If len is 0 or not specified, then the entire file contents are truncated.

Parameters

path

string | URL

len?

number

options?

TruncateOptions

Returns

Promise<void>

Example

import { truncate, readTextFile, writeTextFile, BaseDirectory } from '@tauri-apps/plugin-fs';
// truncate the entire file
await truncate("my_file.txt", 0, { baseDir: BaseDirectory.AppLocalData });

// truncate part of the file
const filePath = "file.txt";
await writeTextFile(filePath, "Hello World", { baseDir: BaseDirectory.AppLocalData });
await truncate(filePath, 7, { baseDir: BaseDirectory.AppLocalData });
const data = await readTextFile(filePath, { baseDir: BaseDirectory.AppLocalData });
console.log(data);  // "Hello W"

Since

2.0.0