To see a list of globally installed npm packages on a Mac, you can use the npm command line interface (CLI). Npm is a package manager for the JavaScript programming language, and it allows you to install, update, and manage packages for your projects.
Here is how you can list globally installed npm packages on a Mac using the terminal:
- Open the terminal.
- Type the following command:
npm list -g --depth=0
This will list all of the globally installed npm packages on your Mac, along with their version numbers. The --depth=0 flag specifies that only top-level packages should be listed, without their dependencies.
If you want to see more information about a specific package, you can run the following command:
npm list -g <package-name>
Replace <package-name> with the name of the package you want to know more about.
Here is an example of what you might see when you run these commands:
$ npm list -g --depth=0
/usr/local/lib
├── @angular/cli@11.0.1
├── gulp@4.0.3
├── nodemon@2.0.6
└── yarn@2.3.2
$ npm list -g nodemon
/usr/local/lib
└── nodemon@2.0.6
In this example, the first command lists four globally installed npm packages: @angular/cli, gulp, nodemon, and yarn. The second command shows more information about the nodemon package, including its version number (2.0.6).
It's important to note that globally installed npm packages can take up a significant amount of disk space, so it's a good idea to regularly review your list of globally installed packages and remove any that are no longer needed. You can remove a globally installed package by running the following command:
npm uninstall -g <package-name>
Replace <package-name> with the name of the package you want to remove.
In conclusion, the npm CLI provides an easy way to list globally installed npm packages on a Mac, along with additional information about each package. This information can be useful for managing your development environment and ensuring that you have the necessary packages installed for your projects.
In addition to listing globally installed npm packages, npm provides several other useful features for managing your development environment.
One such feature is the ability to install packages locally for a specific project. When you install a package locally, it will only be available for use in that project and will not affect other projects on your system. To install a package locally, navigate to your project's directory in the terminal and run the following command:
npm install <package-name>
Replace <package-name> with the name of the package you want to install. The package and its dependencies will be added to your project's node_modules directory.
Another useful feature of npm is the ability to update packages. Over time, packages may receive updates that fix bugs, add new features, or improve performance. To update a globally installed package, run the following command:
npm update -g <package-name>
Replace <package-name> with the name of the package you want to update. To update a locally installed package, run the same command from within your project's directory.
In addition to the CLI, npm provides an online registry of packages that you can search and browse. The registry contains tens of thousands of packages, and you can easily find packages to meet your specific needs by searching for keywords, reading package descriptions, and browsing popular packages.
Finally, npm provides a way to automate tasks using scripts. For example, you can use a script to build your project, run tests, or deploy your code to a production server. To run a script, you need to specify it in the scripts section of your project's package.json file. You can then run the script using the following command:
npm run <script-name>
Replace <script-name> with the name of the script you want to run.
In conclusion, npm is a powerful tool for managing your development environment, and it provides several features for listing and managing packages, searching for packages, and automating tasks. Whether you're a seasoned developer or just getting started, npm is an essential tool for managing your projects.
Popular questions
- How do I see a list of globally installed npm packages on a Mac?
You can see a list of globally installed npm packages on a Mac by using the following command in the terminal:
npm list -g --depth=0
- How do I get more information about a specific globally installed npm package?
To get more information about a specific globally installed npm package, use the following command:
npm list -g <package-name>
Replace <package-name> with the name of the package you want to know more about.
- How do I install a package locally for a specific project?
To install a package locally for a specific project, navigate to your project's directory in the terminal and run the following command:
npm install <package-name>
Replace <package-name> with the name of the package you want to install.
- How do I update a globally installed npm package?
To update a globally installed npm package, use the following command:
npm update -g <package-name>
Replace <package-name> with the name of the package you want to update.
- How do I run a script defined in my project's
package.jsonfile?
To run a script defined in your project'spackage.jsonfile, use the following command:
npm run <script-name>
Replace <script-name> with the name of the script you want to run.
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