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

To use the fsync function from fs-extra in JavaScript, you need to install the fs-extra module first. You can install the module using the following command:

npm install fs-extra --save
28 chars
2 lines

Once you have installed the fs-extra module, you can use the fsync function to synchronize the data of the file with the disk.

Here is an example code snippet that shows how to use the fsync function:

index.tsx
const fs = require('fs-extra');

const filePath = 'path/to/file';

// write data to the file
fs.writeFileSync(filePath, 'Hello World!', 'utf8');

// get the file descriptor
const fd = fs.openSync(filePath, 'r+');

// synchronize the data of the file with the disk
fs.fsyncSync(fd);

// close the file
fs.closeSync(fd);
319 chars
16 lines

In the above example, fs.writeFileSync is used to write data to the file first. Then fs.openSync is used to get the file descriptor for the file. Finally, fs.fsyncSync is used to synchronize the data of the file with the disk, and fs.closeSync is used to close the file.

Note that fsync is a synchronous function, which means it blocks the execution of the program until the data is synchronized with the disk. If you want to use an asynchronous version, you can use fs.fsync instead.