Why is Node fs.writeFile() method successful, but an empty file is then sent to the browser?

writeFile is asynchronous.either use it as:

fs.writeFile('helloworld.txt', 'helloworld', function () {    res.download('helloworld.txt');});

or use writeFileSync

javascript node.js express fs

Try to find out if your code has

process.exit()

for some reason. If you do, comment out this one and you will be good to go. My version is v8.6.0.

CodeHunter