To know better about NodeJS, you should know Javascript. So I start with Javascript Javascript is in top 3 language. JavaScript is developed on December 4, 1995. It was a client-side scripting language. So it was used only in browsers. Javascript uses Javascript engine that is used by browsers to convert code into machine code. We have multiple JavaScript engines just like we have different browsers like Firefox, Chrome, internet explorer, edge etc. First JavaScript engine was SpiderMonkey developed by Netscape Communication by the creator of JavaScript Brendan Eich and it was developed in 10 days. Different browsers are using a different type of Javascript Engine:- Internet Explorer is using Chakra Firefox is using Spidermonkey Chrome is using V8 Microsoft Edge is rebuild using a chromium-based browser and now it is using V8 engine. Most Famous engine is now V8 Javascript engine because it is faster and can be used for mobile development...
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