How to append to a file in Node?
// Asynchronously:
const fs = require('fs');
fs.appendFile('message.txt', 'data to append', function (err) {
if (err) throw err;
console.log('Saved!');
});
// Synchronously:
const fs = require('fs');
fs.appendFileSync('message.txt', 'data to append');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!');
});Copyright © 2021 Codeinu
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