Nodejs

Nodejs is an open-source,cross-plateform JavaScript run-time environment for executing JavaScript code server side. Though .js is the conventional file extension for JavaScript code, the name "Node.js" does not refer to a particular file in this context and is merely the name of the product. Node.js has an event-driven architecture capable of asynchronous I/O. These design choices aim to optimize throughput and scalability in web applications with many input/output operations, as well as for real-time web applications

Install nodejs

• download nodejs from click here
• run :    node -v
• updating npm :  npm install npm@latest -g
• run:    npm -v