JAVASCRIPT

nodemon package.json start

{
  "name": "abc",
  "version": "0.0.1",
  "description": "my server",
  "scripts": {
    "start": "nodemon my_file.js"		// <= 

nodemon start

------------------package.json FILE
  "scripts": {
      "start": "node index.js",
      "dev": "nodemon index.js"
    },
------------------package.json FILE

------------------[console]
npm run dev
------------------[console]

nodemon install locally json file

  "scripts": {
    "start": "node ./bin/www",
    "devstart": "nodemon ./bin/www",
    "serverstart": "DEBUG=express-locallibrary-tutorial:* npm run devstart"
  },

nodemon a npm run command

nodemon --exec npm run dev:test