[ix-hispana]

The ...thing still feels like magic to me.

The rest are pretty common, I would not consider reduce() or passing an object to a function instead of separate arguments hipster hacks at all. "Options" objects are ubiquitous in corporate SDKs like AWS and Azure. They are the opposite of hipster.

[tal_berzniz]

Options indeed was always a common use case but made the function declaration less verbose. Now we can have the best of both worlds