Node.js is a JavaScript runtime environment that allows you to run JavaScript code. Before Node.js came into existence, it is believed that JavaScript can run on the client-side, i.e. on the browser. But Node.js has broken the myth. Now developers can run JavaScript programs on the server-side.
Under the hood, Node.js uses Chrome's V8 engine that compiles the code written in JavaScript to the machine code for execution. Node.js comes with core modules that enable you to create web servers, interact with the file system, and perform other tasks. You are not limited to the functionalities offered by the built-in modules. You can even create your custom modules. Some of the popular third-party modules you must be familiar with are Express, Socket.IO, Lodash, and others. In case you are thinking about why you should learn Node.js. It would be best to know that Node.js provides non-blocking IO and uses asynchronous event-driven architecture to deliver lightweight, scalable, and efficient systems. In addition to this, companies like Netflix, Walmart, PayPal, and many more use Node.js in their production environments.
So, by learning Node.js, you will gain job-oriented skills and make your future bright. Following are the topics covered in the Node.js tutorial:
Prerequisite: Before you start with this tutorial, you should have a sound knowledge of the JavaScript programming language. Refer to the JavaScript tutorial for the basic and advanced syntax of JavaScript.
