如何在 package.json 中添加新脚本

Question

I want to add a script dev in my package.json .

I tried adding it manually in a text editor, but when I run:

npm run dev

I get some errors. Is it possible to add the script from the terminal?

---

Edit:

I added:

"scripts:" {
  "start": "node app",
  "dev": "nodemon app"
}

and I got this error:

 nodemon app sh: nodemon: command not found npm ERR! code ELIFECYCLE npm ERR! syscall spawn npm ERR! file sh npm ERR! errno ENOENT npm ERR! code@1.0.0 dev: nodemon app npm ERR! spawn ENOENT npm ERR! npm ERR! Failed at the code@1.0.0 dev script.

Answer 1

The problem here is you have not installed the package named nodemon :

1. In your CLI enter the following command to install the package:

    npm install nodemon --save-dev

2. Then run the following command and it will work:

    npm run dev