writefile in node js
// 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();