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syntax - SlotSequence (##) form analogous to #[[ ;; n]]


I'm aware that this may be closed as offtopic but there are people around with "offtopic" knowledge :)


So, in List context we can: #[[n ;; ]] and #[[ ;; n]], but we can't do this in context of Sequence. Only ##n is available.


One may do



f[n_] := Unevaluated[##][[;; n]] &
f[2][1, 2, 3, 4]


Sequence[1, 2]

but it is not what I'm looking for.


It is very often when I would like to use it. Of course there are no problems with workarounds. I'm just curious.


p.s. Syntax is an issue for sure, I thought something like ###2 could stand for this but ### is automatically interpreted as ##1 #1.




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