nodejs delete npm

When using Node.js, we often need to install required dependencies and extended modules through npm. But what should we do when we need to uninstall some modules or delete the entire npm? This article will introduce how to delete npm.

1. Understand npm

npm is the package manager of Node.js, which allows us to easily search, install, update and delete Node.js modules. The default installation path of npm is /usr/local, which stores all modules in the /usr/local/lib/node_modules/ directory.

2. Uninstall the module

1. Uninstall the global module

If you want to uninstall the globally installed module, you can use the following command:

npm uninstall -g [module_name]

Among them, [module_name] represents the name of the module to be uninstalled. For example, if you want to uninstall the globally installed express module, you can use the following command:

npm uninstall -g express

2. Uninstall local module

If you want To uninstall a locally installed module, you need to execute the following command in your project directory:

npm uninstall [module_name]

Similarly, [module_name] represents the name of the module to be uninstalled. For example, if you want to uninstall the locally installed lodash module, you can use the following command:

npm uninstall lodash

3. Delete npm

If you want to completely delete npm, you need Execute the following commands in sequence:

1. Delete all modules installed by npm

sudo rm -rf /usr/local/lib/node_modules/

2. Delete npm individual installation files

sudo rm -rf /usr/local/include/node /usr/local/bin/node /usr/local/share/man/man1/node.1

3. Delete npm's environment configuration

sudo rm -rf /usr/local/lib/node /usr/local/include/node /usr/local/bin/npm /usr/local/share/man/man1/npm.1

4. Supplementary knowledge

1. Delete npm configuration file

If you want to delete npm's configuration file, please execute the following command:

sudo rm -rf ~/.npmrc

2. Use nvm to manage Node.js version

In addition to using npm to manage Node.js modules, we can also use nvm ( Node Version Manager) to manage different versions of Node.js. Using nvm you can easily switch the version of Node.js, and you can also avoid conflicts with globally installed modules.

Install nvm:

curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.38.0/install.sh | bash

Use nvm to install Node.js:

nvm install [version]

Among them, [version] indicates the Node.js version to be installed. For example, if you want to install Node.js14.17.0 version, you can use the following command:

nvm install 14.17.0

Switch Node.js version:

nvm use [version]

For example, if you want to use Node.js14. For version 17.0, you can use the following command:

nvm use 14.17.0

Summary

This article introduces how to uninstall modules and delete npm in Node.js. At the same time, we also learned about using nvm to manage Node.js versions. I hope this article can help readers in need, thank you for watching.

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