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Install packages in a Node.js application using npm

In this lesson, you will learn how to find packages to add functionality to your application. You will also learn some valuable tips on how to choose a stable, supported package. We also demonstrate how to install packages using npm and the two simple rules to understand when you should install globally with the -g flag or install the package locally. The dependency section of package.json is used to show how to manage dependencies for both production and development packages. Finally, the caret (^), tilde(~), and star (*) wildcards are explained to control which versions your package is compatible with as well as installing package dependencies from git repos.

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