npm - install dependencies for a package in a different folder?

Question

I have the following directory structure:

/some_project
    source.js
    package.json

I would like to install the dependencies for some_pr

Answer 1

Update: Since the --prefix option exists, I now vote for @coudy's answer to this question. Original answer below:

No, npm will always install in the current directory or, with -g, in the system wide node_modules. You can kind of accomplish this with a subshell though, which won't affect your current directory:

(cd some_project && npm install)

The parentheses makes it run in a subshell.

Answer 2

On Windows 10 I couldn't get --prefix to work, so I had to cd and execute it.

cd PATH_TO_FOLDER && npm install 

Answer 3

You can use the npm install <folder> variant with the --prefix option. In your scenario the folder and prefix will be the same:

npm --prefix ./some_project install ./some_project

Answer 4

On windows 10 using powershell the only thing that worked for me without all the problems and edge-cases mentioned in this blog post was this

Start-Process -Wait -FilePath "npm" -ArgumentList "install" -WorkingDirectory $web_dir