Just re-posting a Q I put on SO today in case anyone here has insights:
Basically, battling to figure how to integrate a library that is implemented as a Javascript export function using JS modules into a GWT application using JsInterop. Pretty sure there must be some way, but the combination of JS module syntax/usage, lack of global namespace for JS module functions is baffling me. I'm a long time Java/GWT coder, but with less in depth JS knowledge. All of my JS integration in the past was done with the older JSNI / wrappering approaches.