Bing Maps V8 is rapidly growing with new features and functionalities. These definitions only contain the features which are in the main release branch. As such we felt it made sense to make these TypeScript definitions open source on GitHub so that anyone can download and modify these as they see fit. If you are using the experimental branch and want to start developing against a new feature before it’s in the main release branch, you can easily add in the new features that you need to the definitions. Additionally, to make it easier to add these TypeScript definitions to your application we also made them available as a Nuget package.
What is TypeScript?