Joins with 1 listenable

[rektide]

It's becoming a bit painful to check whether we need to Reflux.join{Leading,Trailing,Concat,Strict} or use the non-static store.listen() in some of our tests. It would be pleasant if the join static methods worked whether there are multiple things or just one listenable to synchronize to.

[spoike]

It's kind of unnecessary to use joins if you already know you only have one listenable to listen to.

I do understand though that joins should support 1 listenable in case the join is made in a dynamic fashion.

[spoike]

Should be a simple fix: the joins could just return the listenable if there is only one. That way you won't need to do any ifs.

[LongLiveCHIEF]

-1 to the proposed way of resolving this concern.

[spoike]

@H3Chief can you elaborate?