How to append to a file in Node?

I am trying to append a string to a log file. However writeFile will erase the content each time before writing the string. fs.writeFile(‘log.txt’, ‘Hello Node’, function (err) { if (err) throw err; console.log(‘It\’s saved!’); }); // => message.txt erased, contains only ‘Hello Node’ Any idea how to do this the easy way? 18 s … Read more