I got a good idea. I am thinking about implementing a loading indicator, since the Earth or spinning globe takes a long time to appear from the hosted website sometimes. So, I think I should use a promise, and proceed with .then( ) when ready. But the code for spinning Earth is not all wrapped inside one single function, which would be rather inelegant to do anyway. Rather than wrap all the code inside a single function, is there a easier way to target a part of the code that is likely to complete when the whole Earth codebase is fully downloaded? So, I'm looking for a way to implement a loading indicator in an easy way to indicate to the user that the main feature is still downloading. Any ideas are appreciated.