The largest ecosystem of open source libraries in the world

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Node.js® is a JavaScript runtime built on Chrome's V8 JavaScript engine. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient. Node.js' package ecosystem, npm, is the largest ecosystem of open source libraries in the world.

With Node.js’ you can have an event-driven architecture capable of asynchronous I/O. It will improve the throughput and scalability in Web applications with many input/output operations, as well as for real-time Web applications. The development, including the hiring process, will be highly optimized since you can build your applications with Javascript top-to-bottom, even down to the database level if you use a JSON storage Object DB like MongoDB.

With every Node.js you will have, by default, built-in support for package management using the NPM tool, which contains thousands of really useful packages and libraries. Also, the Node.js community is growing at an insane pace, which is attracting not only the smartest developers but also companies like Cisco Systems, IBM and Yahoo!