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Introduction What’s the problem its trying to solve? To automate the process of downloading and upgrading libraries from a central repository. npm is a package manager, i.e. it manages third party packages that you use in your application. It also helps you in managing dependencies by tracking the version of packages your app needs through a package.json file. package.json A JSON file containing information about our project such as, name and version of external packages on which our project depends upon. This is useful because anyone using our project can run $ npm install to let npm grab the project dependencies for them. ...