It turns out that HTML5 isn't bad at single property validation.
Create a simple (ha!) Create React App and try to understand the magic.
Create Azure Windows 10 VM with VS2017RC Size Standard DS2 v2 This should do. Add Data Disk to VM via Azure.
So let's write a simple hello world app. Using Typescript 1.8 and React in Visual Studio 2015 Update 2. .Net 4.5.2 (MVC 5).