Instructions for using the fs.fsyncSync method in node.js_node.js

Method description:

Synchronized version of fsync(). Synchronize disk cache.

Grammar:

Copy code The code is as follows:

fs.fsyncSync(fd)

Since this method belongs to the fs module, the fs module needs to be introduced before use (var fs= require(“fs”) )

Receive parameters:

fd File descriptor.

Example:

Copy code 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:

Copy code The code is as follows:

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