When you start with Node.js and Express you are probably friends with
CTRL + S (Save file)
CMD + Tab (Mac, switch windows)
CTRL + C (Stop server/application in terminal)
UP ARROW then ENTER (Restart server/application)
However there are tools to do this for you, one is Nodemon, and you can install this globably with
npm install -g nodemon
For your standard Node.js app which you start with node server.js you change that call to nodemon server.js. Now, each time you make a change Nodemon will handle restarting the app … think of it frantically calling CTRL+C, UP ARROW & ENTER in the background for you.
For Express.js the setup is slightly different. From the terminal you would use something like this (Mac/Linux) npm start or DEBUG=myApp npm start to get your project up and running on http://localhost:3000. To use Nodemon here you need to edit your projects package.json file so it looks like this
// “start”: “node ./bin/www”
“start”: “nodemon ./bin/www”
Once that’s done, start your Express.js project the normal way and each time you make a change you can go straight to the browser and refresh the page.