Visual studio provides you intellisense support for various programming languages and scripts. It helps a lot while programming with Visual Studio IDE. By default Visual Studio doesn't provide us the Ionic intellisense support. I did some googling over net and found a useful resource which helps you to enable intellisense in visual studio.
Ionic is an UI framework which is build to create hybrid mobile apps based on Html5. It's alpha version was released in late November 2013. It provides your hybrid mobile apps native apps like look and feel and UI interactions which your app required. It also supports a broad range of common native mobile components, slick animations, and beautiful design.