52. How do you install packages locally and globally using npm?

npm allows installing packages both locally (for a specific project) and globally (for the entire system).

Local installation:

• Command:

npm install <package-name>

• Description: Packages are installed in the project's node_modules directory and are only available for that project. Dependencies are recorded in the package.json file under dependencies.

Example:

npm install express

Global installation:

• Command:

npm install -g <package-name>

• Description: Packages are installed globally and are available from anywhere in the system. Global installation is mainly used for command-line tools like webpack, gulp, etc.

Example:

npm install -g webpack

Managing local and global packages:

• List locally installed packages:

npm list

• List globally installed packages:

npm list -g --depth=0

• Uninstall a package locally:

npm uninstall <package-name>

• Uninstall a package globally:

npm uninstall -g <package-name>

Installing packages locally and globally using npm allows for flexible management of project dependencies and development tools.