nodejs fs write file

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!');
});

Posted by: Guest on March-15-2020

Source

const fs = require('fs'); fs.writeFile("/tmp/test", "Hey there!", function(err) { if(err) { return console.log(err); } console.log("The file was saved!"); }); // Or fs.writeFileSync('/tmp/test-sync', 'Hey there!');

// write_stream.js const fs = require('fs'); let writeStream = fs.createWriteStream('secret.txt'); // write some data with a base64 encoding writeStream.write('aef35ghhjdk74hja83ksnfjk888sfsf', 'base64'); // the finish event is emitted when all data has been flushed from the stream writeStream.on('finish', () => { console.log('wrote all data to file'); }); // close the stream writeStream.end();

var path = require('path'), fs = require('fs'); function ensureDirectoryExistence(filePath) { var dirname = path.dirname(filePath); if (fs.existsSync(dirname)) { return true; } ensureDirectoryExistence(dirname); fs.mkdirSync(dirname); }

// append_file.js const fs = require('fs'); // add a line to a lyric file, using appendFile fs.appendFile('empirestate.txt', '\nRight there up on Broadway', (err) => { if (err) throw err; console.log('The lyrics were updated!'); });

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