title: Typescript import .js from CDN
body: <p>In my .ts file I want to reference a .js (hosted by a 3rd party) and use some of the functions in the .js file.  So far the only way I have found out how to do this is by modifying the .html page and inserting a  tag from the .ts itself.  Is there any other more elegant way of doing this apart from modifying the .html page?</p>