How to Use fs. fsyncSync in node. js _ node. js-js tutorial

This article mainly introduces node. fs. fsyncSync method usage instructions. This article introduces fs. fsyncSync method description, syntax, receiving parameters, use instances and implementation source code. For more information, see Method description:

Synchronous version of fsync (). Synchronize disk cache.

Syntax:

The Code is as follows:

Fs. fsyncSync (fd)

Because this method belongs to the fs module, we need to introduce the fs module (var fs = require ("fs") before use "))

Receiving parameters:

Fd file descriptor.

Example:

The Code is as follows:

Var fs = require ('fs ');
Fs.open('content.txt ', 'A', function (err, fd ){
If (err ){
Throw err;
}
Console. log ('file open ');

Fs. fsyncSync (fd );

Fs. close (fd, function (err ){
If (err ){
Throw err;
}
Console. log ('file closed ');
})
})

Source code:

The Code is as follows:

Fs. fsyncSync = function (fd ){
Return binding. fsync (fd );
};