Where can I find the JS API documentation?
Not the examples (Ptyhon JS Java Go), not the tutorial examples, not the solutions, not JS SDK examples,
but the API documentation itself?
Currently I’m afraid the best solution is read the comments of the functions in GitHub - algorand/js-algorand-sdk: Algorand SDK in javascript for node.js and modern browsers.
Will a community project be started to remedy that situation?
Or the tests are the docs?
There will soon be an API documentation website.
Coooool! Thank you. 
Take a look at :
Algorand JS-SDK Docs
To start with JS-SDK
Good luck!
@emg110, cool! cool! cool!