Thread:GodKingofGodKings/@comment-44605201-20200202020936/@comment-44605201-20200202021708

Yes it is.

Alongside HTML and CSS, JavaScript is one of the core technologies of the World Wide Web.[11]  JavaScript enables interactive web pages and is an essential part of web applications. The vast majority of websites use it,[12]  and major web browsers have a dedicated JavaScript engine to execute it. (quote from Wikipedia)