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NODEJS
Node.js is an open-source server side runtime environment built on Chrome’s V8 JavaScript engine. It provides an event driven, non-blocking (asynchronous) I/O and cross-platform runtime environment for building highly scalable server-side application using JavaScript.
Node.js can be used to build different types of applications such as command line application, web application, real-time chat application, REST API server etc. However, it is mainly used to build network programs like web servers, similar to PHP, Java, or ASP.NET.
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Node.js
Node.js is built on the Chrome JavaScript runtime and allows the developers to create fast and highly scalable network application easily. For the implementation of a dynamic language, this application is extremely fast and runs on the top of Google’s V8 JIT-compiled JavaScript engine.
This hottest development platform has become hugely popular among the coders to develop APIs and a new matrix of interoperability throughout the Internet. And thus, become popular as the best option to develop a chat-based mobile application. Lets see step by step how it became the best option for this.
How is Node.js different from web JavaScript?
There is no difference between web JavaScript and Node.js in terms of the language used. JavaScript used in browsers and in Node.js is almost exactly the same. What makes Node.js special is the different set of APIs. In browsers, you have a variety of DOM/Web APIs exposed that help you interact with UI and allow you to access the hardware to a limited extent. To compare, Node.js comes with comes with many APIs suitable for backend development, e.g. the support for file systems, http requests, streams, child processes, etc. Browsers do offer some basic support for file systems or http requests, but those are usually limited due to security concerns.
Why is it worth developing your project in Node.js?
First of all, using Node.js as your server technology gives your team a great boost that comes from using the same language on both the front end and the back end. This, means that your team is more efficient and cross-functional, which, in turn, leads to lower development costs. In addition to that, it’s worth mentioning that JavaScript is the most popular programming language, so your application’s codebase will be easier to understand for more engineers. You can also reuse and share the code between the frontend and the backend parts of your application, which speeds up the development process. On top of that, the Node.js community is constantly growing – the number of StackOverflow questions is steadily increasing, so the knowledge base for the technology is widely available. The fact that the whole Node.js technology stack is open-source and free is also great news. Finally, Node offers a great package manager, npm, and the amount of available open-source tools in npm’s registry is massive and growing fast. These are just a few of many advantages of Node.js that you should consider when choosing the technology for your next project.
Real time applications
Node.js is a good choice for applications that have to process a high volume of short messages requiring low latency. Such systems are called real-time applications (RTAs), and they can be easily developed with Node.js. Thanks to its specifications, Node.js will be a good choice for the real-time collaborative drawing/editing-type apps, where you can watch the document being modified live by someone else (such as Trello, Dropbox Paper or Google Docs).
The list of RTAs that can be effortlessly developed with Node.js is much longer. One of the most popular ones are live-chat and instant-messaging apps. Node will also be the right choice, if you want to create a video conference app that will work with specific hardware or VoIP. Additionally, you might want to consider Node.js for online gaming apps or e-commerce transaction software, where online data is of much importance.
Node.js is very efficient with real-time applications: it facilitates handling multiple client requests, enables sharing and reusing packages of library code, and the data sync between the client and server happens very fast.
Fast and scalable environment.
Ruby on Rails might not be sufficient in terms of speed, if you have a ton of requests. Node.js will prove useful in situations when something faster and more scalable than Rails is needed. Node’s ability to process many requests with low response times, as well as sharing things such as validation code between the client and server, make it a great fit for modern web applications that carry out lots of processing on the client’s side. For these reasons, Node.js is a popular choice among “single-page application” sites, where all the rendering is done on the client’s side, and the backend only provides a JSON API.
Node.js also comes in handy, when you want to process high volumes of IO-bound requests. It won’t really be all that efficient if a lot of CPU processing is required to serve the request. Yet, if it’s primarily just shuffling data around, then it will be quite efficient, because a single instance can serve a lot more requests with the same hardware, compared to the usual “thick” application server (like with rails).
