fs functions javascript to save file code example

Example 1: writefile in node js

// writefile.js

const fs = require('fs');

let lyrics = 'But still I\'m having memories of high speeds when the cops crashed\n' + 
             'As I laugh, pushin the gas while my Glocks blast\n' + 
             'We was young and we was dumb but we had heart';

// write to a new file named 2pac.txt
fs.writeFile('2pac.txt', lyrics, (err) => {
    // throws an error, you could also catch it here
    if (err) throw err;

    // success case, the file was saved
    console.log('Lyric saved!');
});

Example 2: fs create or edit file

//Edit file or creates if doesnt exist
 const fs = require('fs');
 fs.appendFile(‘<fileName>’,<content>,callbackFunction)