Node.js is a lean, fast, cross-platform JavaScript runtime environment that is useful for both servers and desktop applications.

Because it's simple and scalable, organizations are using Node.js to not only build applications, but to do cloud-based application development and build IaaS and SaaS solutions.

Microsoft wants you to build for the cloud and has developed a free Node.js course to help learners on their journey.

Learn how to use JavaScript’s fs library module to create, read, write, and stream common file types in the JavaScript runtimes Node, Deno, and Bun.