how to use the fdatasyncsync function from the fs-extra library in typescript

To use the fdatasyncSync function from the fs-extra library in TypeScript, you can follow the steps below:

1. Install fs-extra library by running the command npm install fs-extra.

2. Import fs-extra and fs libraries in your TypeScript file:

index.ts
import * as fsExtra from 'fs-extra';
import * as fs from 'fs';
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3. Use the fdatasyncSync function to write any changes to a file descriptor, and wait until the changes are fully committed to disk. Here is an example:

index.ts
const fd = fs.openSync('/path/to/file.txt', 'w');
// Write data to the file descriptor
fs.writeSync(fd, 'Hello World!');

// Wait until the changes are fully committed to disk
fsExtra.fdatasyncSync(fd);
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In this example, we first open a file descriptor using fs.openSync() function. We then write some data to the file descriptor using fs.writeSync() function. Finally, we call the fdatasyncSync() function from fs-extra library to ensure that the changes are fully committed to disk.

Note that fdatasyncSync function blocks the execution until the changes are committed to disk, so it may take some time to return depending on file system performance. Thus, we should use it judiciously to avoid blocking the main thread of execution.