how to use the fdatasyncsync function from fs-extra in javascript

To use fdatasyncSync function from fs-extra module, you will first need to install it in your Node.js project by running the following command:

index.tsx
npm install fs-extra
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Once you have installed the fs-extra module, you can use the fdatasyncSync function to write any data changes to a file descriptor, and ensure that the changes are persisted to disk.

Here's an example of how to use fdatasyncSync:

index.tsx
// Import the fs-extra module
const fs = require('fs-extra');

// Open the file descriptor
const fd = fs.openSync('/path/to/file', 'w');

// Write some data to the file descriptor
fs.writeSync(fd, 'Hello, world!');

// Use fdatasyncSync to persist the data changes to disk
fs.fdatasyncSync(fd);

// Close the file descriptor
fs.closeSync(fd);
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In this example, fs.openSync is used to open the file descriptor, fs.writeSync is used to write data to the file descriptor, fs.fdatasyncSync is used to ensure that the data changes are persisted to disk, and fs.closeSync is used to close the file descriptor when done.

Note that fdatasyncSync will only ensure that data changes are persisted to disk, not metadata changes (such as file permissions). If you need to persist metadata changes, you may need to use fsyncSync instead.