Node.js get file extension

Question

Im creating a file upload function in node.js with express 3.

I would like to grab the file extension of the image. so i can rename the file and then append the file

Answer 1

// you can send full url here
function getExtension(filename) {
    return filename.split('.').pop();
}

If you are using express please add the following line when configuring middleware (bodyParser)

app.use(express.bodyParser({ keepExtensions: true}));