Node.js is a cross-platform, open-source, JavaScript runtime environment. It is used for developing server-side and networking applications. It is built on Chrome's V8 JavaScript engine, and it can execute JavaScript code outside of a browser. It allows developers to create scalable and fast network applications by utilizing a non-blocking I/O model. Node.js also provides a rich library of various JavaScript modules that simplifies the development of web applications. Popular applications built on Node.js include web servers, streaming media servers, and other real-time applications. Node.js is widely used to build high-performance and low-latency applications. It is also popular for its event-driven programming, which allows developers to create efficient and scalable applications. Additionally, Node.js supports popular web development frameworks such as Express, Meteor, and Sails, that allows developers to quickly create robust web applications.
A large number of Perl modules implement event scheduling.