"Jim - FooBar();" <[email protected]> writes:
>>> Yes. A correct version is
>>>
>>> (defn in? [coll e]
>>> (some (partial = e) coll))
>>
>> If just wrapping 'some' I think this is easier to read
>>
>> (defn in? [coll e]
>> (some #{e} coll))
>>
>> thanks for your time :-)
>
> aaaa sorry...you meant to return boolean not the actual element!
No, my variant also returns nil for "e is not in coll", but the
difference is that my version works for nil and false values:
(in? [nil false] nil) => true
(in? [nil false] false) => true
whereas your version with the hash-set returns nil and false in those
cases.
Bye,
Tassilo
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