5 major differences between Browser and NodeJS

Although the browser and the NodeJS use the Javascript language, they have some key differences that make the experience radically different. The main difference is that JavaScript in browser is a simple programming language which runs in any browser JavaScript Engine. Whereas NodeJS is an interpreter or running environment for a JavaScript programming language which holds a lot of excesses require libraries which can easily be accessed from JavaScript programming for better use. NodeJS has a major advantage over browser though — that is programming of the front end and the back end can be accomplished in a single language!

In the browser, most of the time what you are doing is interacting with the DOM, or other Web Platform APIs like Cookies. Those do not exist in Node.js. You don’t have the document, window and all the other objects that are provided by the browser. And in the browser, we don’t have all the nice APIs that Node.js provides through its modules, like the filesystem access functionality.

Another difference is that JS in browser can run in any browser engine whereas NodeJS can only run on V8 engine of chrome. JS in browser is the upgraded version of ECMA script that uses Chrome’s V8 engine written in C++and NodeJS is written in C, C++ and Javascript. These are the 5 main differences between JS in browser and NodeJS. Thank you for reading! :)