typescript checking frontend template files

The greatest feature of TypeScript, in terms of big enterprise apps, is type checking. When modifying/extending something low-level, I'll get all errors that arise beneath - just like I would in Java and .Net. But this relates to TS code.

My question is: is it possible to use TypeScript to check types used in frontend templating engines, such as Handlebars, Underscore or [your favourite templating engine]?
I've read that TypeScript 1.6 is gonna support react's JSX, but it's a big limitation to one specific engne only. I guess there is no built-in platform-supported solution, but maybe there is someone who made it work somehow?

Or, in other words, what would you do if you wanted to use TypeScript to check types of variables in handlebars/underscore templates?

Comienza revisando el soporte de JSX de TypeScript 1.6 descrito en la documentación enlazada y comparándolo con la comprobación solicitada de plantillas para Handlebars y Underscore. El issue no menciona archivos, puntos de entrada ni pruebas; para darlo por terminado sería necesario determinar claramente si se puede comprobar el tipo de las variables de las plantillas y qué integración se necesita.