What does the `--save` do when you add it to `npm install`?

Question

What does the --save do when you add it to npm install? I tried looking for documentation on this but couldn't find it.

Possible duplicate of [What is the --save option for npm install?](http://stackoverflow.com/questions/19578796/what-is-the-save-option-for-npm-install) — JohnnyHK, Aug 02 '16 at 22:01

score 0 · Answer 1 · answered Aug 02 '16 at 22:05

In case you have a package.json file (you should have, if not - just run npm init) the module you just installed is added to this file to the dependencies section.

It's very usefull in many cases, not just for documentation. For example: you want to move your project - you don't need to install manually all of your modules or copy the node_modules folder. just run npm install and npm will install all the dependencies.

P.S. I have no idea in which documentation you looked... Just google the same words of your question...

What does the `--save` do when you add it to `npm install`?

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