!!! Overview[1][2]
[{$pagename}] is an [Open Source], cross-platform [JavaScript] runtime environment for executing [JavaScript] code [server-side], and uses the [Chrome] V8 [JavaScript] engine. 

Historically, [JavaScript] was used primarily for [client-side] scripting, in which scripts written in [JavaScript] are embedded in a webpage's [HTML], to be run [client-side] by a [JavaScript] engine in the user's web [browser]. 

[{$pagename}] enables [JavaScript] to be used for [server-side] scripting, and runs scripts [server-side] to produce dynamic web page content before the page is sent to the user's web [browser]. Consequently, [{$pagename}] has become one of the foundational elements of the "[JavaScript] everywhere" paradigm, allowing web application development to unify around a single programming language, rather than rely on a different language for writing [server-side] scripts. 

[{$pagename}] the ".js" is not referring the conventional filename extension for [JavaScript] code in this [context] it is just the name of the product.

[{$pagename}] was originally written in [2009|Year 2009] by Ryan Dahl and the initial release supported only [Linux] and [Mac OSX|MacOS].


!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]
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* [#1] - [Node.js|Wikipedia:Node.js|target='_blank'] - based on information obtained 2017-04-10
* [#2] - [Nodejs.org|https://nodejs.org/en/|target='_blank'] - based on information obtained 2017-04-10