Looks good to me.
I wasn't familiar with the docs around (seq x) vs (not (empty? x)). That
seems like a good place to draw the language from.
-kb
On Tue, Jun 14, 2011 at 1:43 PM, Ambrose Bonnaire-Sergeant
abonnaireserge...@gmail.com wrote:
Inspired by seq/empty? docstrings.
not-any?
Returns false if (pred x) is logical true for any x in coll,
else true - same as (not (some pred coll)).
some
Returns the first logical true value of (pred x) for any x in coll,
else nil. One common idiom is to use a set as pred, for example
this will return :fred if :fred is in the sequence, otherwise nil:
(some #{:fred} coll)
Please use the idiom (not-any? pred coll) rather than (not (some pred
coll))
Thoughts?
Ambrose
On Wed, Jun 15, 2011 at 2:31 AM, Kevin Baribeau
kevin.barib...@gmail.comwrote:
I actually had the same thought as the OP when reading through docs not
too long ago.
+1 for adding a pointer to some in the docstring of not-any?
-kb
On Tue, Jun 14, 2011 at 11:29 AM, Ambrose Bonnaire-Sergeant
abonnaireserge...@gmail.com wrote:
Hi David,
any? would be redundant and less general than some, if I am not mistaken.
Compare the docstrings for the hypothetical any?.
(some p coll)
Returns the *first logical true value* of (pred x) for any x in coll,
else *nil*.
(any? p coll)
Returns *true* if (pred x) is logical true for any x in coll,
else *false*.
Since *nil* and *false* are both falsy, some can be used as a
predicate that is truthy
when it finds truthy result, otherwise falsy. This is exactly the
behavior expected from
an any? function.
some is a poster boy for Clojure's well thought out truthyness system,
this is a great example
of the types of general functions it allows.
Perhaps a pointer to some should be added in the docstring of
not-any?. Although
a quick look at the source makes it crystal clear. I wasn't aware of
not-any?s existence,
maybe noting it in somes docstring could be beneficial also.
Thanks,
Ambrose
On Tue, Jun 14, 2011 at 3:08 PM, de1976 davidescobar1...@gmail.comwrote:
Hello everyone. In looking through the API documentation, I've noticed
that there is a not-any? function available, but there is no
corresponding inverse any? function that I can find. There are,
however, every? and not-every? functions available. The closest I
could find was some, but wouldn't it make sense to have an any?
function for more obvious consistency? Thanks.
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