nodemon install and work with backend(express and mongo)

1. First download the nodemon package
   for globally
   npm i -g nodemon
   OR
   npm install --global nodemon

     for locally
   
         npm i nodemon 
                  OR
         npm install --save-dev nodemon
   

2. go to your "package.json" file and go also "scripts" object and write

"scripts": {
"start": "nodemon (your main js file, where you do main work like server connect => for example , app.js)"
},

that's it

1. Now you can try your terminal npm start for starting this app

good day