On Mar 22, 1:15 pm, Sunil S Nandihalli <[email protected]>
wrote:
> Hello everybody,
> I was wondering why there is no 1 argument version of conj and disj. I
> think that would be very convenient. Especially when used in the following
> way
>
> (apply conj some-collection collection-of-elements-to-be-conjed)
>
> Currently the above usage would fail for both conj and disj when the
> collection of elements to be conjed is empty . So, I need to check if the
> collection is empty and use appropriately.. but just thought having conj and
> disj just return the original collection when there are no keys to be conjed
> or disjed would be very convenient
>
> May be I should be using something else .. I would like to what that other
> function is.
Maybe these:
user=> (reduce conj [] [1 2 3 4])
[1 2 3 4]
user=> (reduce disj #{1 2 3 4} [1 2 3 4])
#{}
Is that what you were looking for?
Regards,
Shantanu
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