Just installed Web Essentials 2017 from the Visual Studio marketplace but the feature to create TypeScript definition from a C# class seems to be missing. In Web Essentials 2015, I would right mouse over the C# class file and there would be an option "Create TypeScript Intellisense file".
I checked the project change log and it shows that the TypeScript definition file generator was implemented in 1.2 and the installed version is 1.5.8.
https://github.com/madskristensen/WebEssentials2017/blob/master/CHANGELOG.md
What did I miss?
Web Essentials is now split into multiple extensions. To install the TypeScript generator, go to Visual Studio 2017-->Tools-->Extensions and Updates-->Online. Now search for 'TypeScript Definition Generator'. Install the one created by by Mads Kristensen.
I found the following extension: https://marketplace.visualstudio.com/items?itemName=MadsKristensen.TypeScriptDefinitionGenerator
来源：https://stackoverflow.com/questions/42786850/web-essentials-2017-and-typescript-definition-generation