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Complete JavaScript Course: Build a Real World App from Scratch

Node.js Packages

Explore the structure of Node.js packages, including the role of the package.json file and its essential fields. Understand semantic versioning rules and how to manage package dependencies effectively to maintain application stability and compatibility.

We'll cover the following...

Anatomy of a package

Technically, a package is a folder containing the following elements:

  • A package.json file that describes the application and its dependencies.
  • A entry point into the application, defaulting to the index.js file.
  • A node_modules/ subfolder, which is the default place where Node looks for modules to be loaded into the application.
  • All the other files forming the source code of the application.

The package.json file

This JSON file describes the application and its dependencies, you can think of it as the app’s ID document. It has a well-defined format ...