What does the --prefix flag do?

[praveenscience]

Hi there,

Awesome game, thank you! Been spending a lot of time here.

This is not an issue per say, but I am just curious, in your package.json file, what does the --prefix do? Is it for heroku or?

    "client": "npm start --prefix client",
    //                   ^^^^^^^^
    "heroku-postbuild": "NPM_CONFIG_PRODUCTION=false npm install --prefix client && npm run build --prefix client"
    //                                                           ^^^^^^^^                         ^^^^^^^^

Thanks in advance.

[mizanxali]

Hey, glad you liked the game!
Okay so what the --prefix client does is, it runs the command inside of the client folder. So you can run the script at the root of the project and it will execute the command associated with that script inside the client folder.

So npm start --prefix client is the same as
cd client
npm start

Hope that cleared things out!