Why is Node.js so Popular?
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Why has Node.js become everyone’s favorite? Before getting into Node.js, let's go through the evolution of JavaScript since its inception in 1995.
There are better alternatives to JavaScript such as Python but it is among the top 3 languages because it has that edge. What edge, you ask??
When JavaScript was created in the year 1995, it was solely a web browser language, or a client-side scripting language as you call it. Later on python, C++ came and offered versatility. They could be used for stand-alone applications and web applications. But JavaScript was a browser language. For a bigger website, we could use HTML for Designing, CSS to make it attractive and Javascript to make it more interactive.
Today, JavaScript is a programming language that works on the browser. But how??
Since Javascript was a client-based scripting language, we needed a mediator to convert it into a language that could be understood by the computer. That is where the JavaScript Engine came in. It converted the java code into the machine code with the help of a compiler. What followed next were the multiple engines to support multiple browsers like Chrome, Firefox, Opera, Netscape Navigator, Safari, et al.?
The first engine was Spidermonkey created by Netscape. Internet Explorer used the Javascript engine called Chakra.?
Google Chrome which came in later years built its own Javascript engine called V8. It garnered popularity in comparison to other engines because it converted the code directly into the machine code making the process faster.??
Who doesn’t like the convenience and agility in processes? People started discussing the potential of Javascript for mobile, desktop, and server! That's when V8 was used to build the run time environment which will be used in the machine and called Node.js.?
Node.js is not a framework or a programming language but a Run-Time Application where we can run Javascript on a stand-alone machine and make stand-alone applications.
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How about using Node.js on the server side? That's where HTTP Module came in. Node.js has a lot of modules. Some are inbuilt while some can be downloaded. Thanks to the modules in Node.js, Javascript could be used on the browser and server-side.?
Eventually, a framework for Node.js was built known as ExpressJS (or just express).??
The revelation of Node.js led to Full Stack Development - MEAN and MERN Stack
MongoDB ? ? ? ? ? ? -? Database?
Express? ? ? ? ? ? ? ? -? Framework?????????????????????????????????
Angular & React ? -? Front End Frameworks
Node.js ? ? ? ? ? ? ? ? -? Run-Time Environment?
The entire web application from start to finish can be built using one programming language- Javascript.?
NPM or Node Package Manager gives us all the modules that can be used during the time we want to use external dependencies such as video converters or image compressors in an application.?
There you go, Node.js is popular because it revolutionized the way we program.