CSS3 (~2009-2012):

Level 3 CSS specs as defined by the CSSWG. (immutable)

CSS4 (~2013-2018):

Essential features that were not part of CSS3 but are already a fundamental part of CSS.

CSS5 (~2019-2024):

Newer features whose adoption is steadily growing.

CSS6 (~2025+):

Early-stage features that are planned for future CSS.

What Is ReactJS?

React (a.k.a. ReactJS or React.js) is a JavaScript library for creating user interfaces, open sourced to the world by Facebook and Instagram team in 2013. One might think of it as the “View” in the “Model-View-Controller” pattern 

Node.js Tools 1.0 for Visual Studio (NTVS) is now available for download! NTVS is a free, open source extension for Visual Studio 2012 and Visual Studio 2013 that turns Visual Studio into a Node.js IDE. NTVS 1.0 supports the free Visual Studio Community and Visual Studio Express for Web editions, as well as Visual Studio Professional and higher

In Visual Studio 2013, there were a handful of templates that supported developing ASP.NET projects with various frameworks and data structures.  Some of those project templates from the Visual Studio 2012 era have been removed from the Visual Studio 2015 install and added to the Visual Studio Extension gallery as the ASP.NET Project Templates extension for Visual Studio 2015. 

Download Link: ISO File

Visual Studio Team Foundation Server 2013 is the source-code-control, project-management, and team-collaboration platform at the core of the Microsoft suite of Application Lifecycle Management (ALM) tools, which help teams be more agile, collaborate more effectively, and deliver quality software more consistently. 

const string dateTime = "Wed, 17 Apr 2013 12:10:18 GMT";
Console.WriteLine(DateTime.Parse(dateTime));

 String was not recognized as a valid DateTime because the day of week was incorrect.

 Console.WriteLine(DateTime.Parse(dateTime, CultureInfo.InvariantCulture));