Why Learn Node.js?
npm for package management,
require for includes/dependencies, and testing frameworks like
jasmine to make sure your code is kosher. These are the same powerful patterns that have influenced modern software development on other platforms.
jQuery. The use of a fluent API to chain multiple behaviors together was elegant compared to the Vanilla.js that I could muster.
=== it's a way to provide feedback and guidance to a rapidly evolving domain.