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Node.js Example Collection Node.js Create File in FS

Node.js Write File in FS

Node.JS File Writing–To write content to a file in Node.js, please use node fs modulewriteFile() Function.

Syntax of Node.js writeFile() function

Node.js File Writing Example.js

//　Import the file system module
var fs = require('fs');　
　
var data = "Hello !"
　
//　Write data to the file sample.html
fs.writeFile('sample.txt', data,　
　　　　//　Callback function called after writing to the file
　　　　function(err) {　　
　　　　　　　　if (err) throw err;　
　　　　　　　　//　If there is no error
　　　　　　　　console.log("Data is written to the file successfully.")　
　});

When the above program is running in the Terminal

arjun@arjun-VPCEH26EN:~/workspace/nodejs$ node nodejs-write-to-file-example.js　
Data is written to the file successfully.

Example2 –Write content to a file using specified encoding

Node.js File Writing Example2.js

//　Import the file system module
var fs = require('fs');　
　
var data = "HELLO";　
　
//　Write data to the file sample.html, specifying ASCII encoding
fs.writeFile('sample.txt', data, 'ascii',　
　　　　//　Callback function called after writing to the file
　　　　function(err) {　　
　　　　　　　　if (err) throw err;　
　　　　　　　　//　If there is no error
　　　　　　　　console.log("Data is written to the file successfully.")　
　});

When the above program is running in the Terminal

arjun@arjun-VPCEH26EN:~/workspace/nodejs$ node nodejs-write-to-file-example-2.js　　
Data is written to the file successfully.

Summary:

In this Node.js tutorial-Node.js File System-In this file writing, we learned the process of writing content to a file with examples.

Node.js Example Collection Node.js Create File in FS