Node Package Manager (NPM) provides two primary functionalities − 

• Online vaults for node.js bundles/modules which are accessible on search.nodejs.org. 
• COMMAND line utility for interacting with the requested/required repository which is included in the package installation, and to do version management and dependency management of Node.js bundles. 

www.npmjs.com hosts thousands of free packages to download and use. The NPM program is installed on your computer when you INSTALL Node.js. There might be a scenario when we are required to either uninstall a dependency or have to update an existing dependency, so please use the FOLLOWING command for uninstalling any dependencies through NPM: 

Please use the following command for updating any dependencies through NPM 

To get the old behavior, use npm --depth 9999 update . As of npm@5.0.0 , the npm update will change package.json to SAVE the NEW version as the minimum required dependency. To get the old behavior, use npm update --no-save