In Search of Node Modules

I know this seems funny, I am looking for my node modules. Are you looking for your node modules? Maybe not. For once, let us assume that you need to know where your node modules are. This article is about npm commands that help find where your node module is located and what node modules are installed. For this article, I will like to assume that you have Node.js and npm installed on your machine.

Finding locally installed node modules

To locate where the locally installed modules will be located or are placed. We use the command npm root. If you are in a folder without any node modules installed and which has not being initialised using npm init for a node package. The command returns the location where your node modules will exist. If you are in a folder with a node module installed or which has been initialised for a node package. The command returns the node modules location.

npm root locally.gif Here it returns the would-be location of the node_modules folder. if it existed. Let us check for the installed modules in the node_modules folder returned in the image above using the npm list command.

npm list locally empty.gif From the GIF above we can see that there are no node packages located in the node_modules folder.

From the motion graphics below, we see that the npm _commands folder is empty. files in the folder.gif

We install some packages into the folder using the npm install <package name> command. Check for the node_modules folder and the installed modules. To check for the installed modules, we use the npm list command used earlier.

npm list locally.gif

Finding globally installed node modules

We know that locally installed node modules are located at the root of the package in the node_modules folder. So, where are our globally installed node modules? To find the location we add the suffix -g to the command we used earlier. So the command becomes npm root -g.

npm root globally.gif The GIF above shows the location of where all globally installed modules are installed. To list the modules installed globally, we add the suffix -g to the command used earlier. The command becomes npm list -g.

npm list globally.gif

The command npm list or npm list -g also returns the dependency in each installed module. To avoid displaying the dependency use suffix --depth=0.

npm list no dep.gif

Conclusion

This article has shown how to find the location of node modules installed locally and globally and how to list out each module. All from the comfort of your command line application.

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