Node.js is a cross-platform, open-source JavaScript runtime
framework that allows JavaScript code to be executed outside of a web browser.
Node.js allows developers to utilize JavaScript to
create command line tools and server-side scripting, which is the process of
running scripts on the server to generate dynamic website content before
sending the page to the user's browser.
Advantages of Node.js include:
• Asynchronous and Event-Driven: All API functions in Node.js are
asynchronous, meaning that they return at once without waiting for other
processes to finish. This makes Node.js very efficient and scalable.
Event-driven programming additionally makes it simple to design code that
responds quickly to user interaction.
• Single-Threaded but Highly Scalable: Node.js uses a
single-threaded, event-driven architecture that is very efficient but can be
challenging to write code for. However, Node.js is very scalable because it can
handle many concurrent connections with extraordinarily little overhead.
• Fast: Node.js is built on Google's V8 JavaScript engine, which
compiles and executes code very quickly.
• Rich Library of modules: Node.js has a rich library of modules
that make it easy to add functionality.