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.
In this lesson, you will learn how to use view and interpret the garbage collection activity of your node.js app via the console. You will also learn how to take heapdump snapshots and analyze them with Chrome Developer Tools to identify possible memory leaks. A sample app with a known memory leak is provided as part of the walk-through to illustrate how to use the tools in your own environments.