Query result always in array

[sophiebremer]

Is your feature request related to a problem? Please describe.
When nothing has been found or the query is malformed, undefined is returned. One can not distinguish between both situations. It also bloats the code to handle undefined results.

Describe the solution you'd like
Malformed query should result in an exception, otherwise query should always return an array. One can test with result[0], if something has been found.

Describe alternatives you've considered
The current solution requires access with optional shorthand or fallbacks.

Additional context
jQuery always returns an array.