personally I've gotten used to it but it seems that every couple of
weeks someone else will be confused and try to use contains? as it would
be used in Java...the docs are clear but unfortunately not everyone
consults the docs beforehand! at least not for such a semantically clear
name as "contains?"...
Jim
On 04/09/12 10:01, Marcus Lindner wrote:
I think this is not a bad idea. ;)
At all, a method/function name should describe what it does. And if
'contains?' only looks for keys, then 'contains-key?' would be a
better descriptor for it.
Am 03.09.2012 13:29, schrieb Jim - FooBar();:
this is probably the single most confusing name in clojure! :-)
why can't we make it "contains-key?" ?
Jim
On 03/09/12 12:14, Goldritter wrote:
Ah ok. So I need to transform a vector and/or a list into a set first.
Thanks.
Am Montag, 3. September 2012 13:05:52 UTC+2 schrieb Ambrose
Bonnaire-Sergeant:
'contains?' tests if a key is in a collection.
Vector is an associative data structure, with keys being indexes.
A vector of length 3 has the key 2, but not key 3.
Thanks,
Ambrose
On Mon, Sep 3, 2012 at 7:03 PM, Goldritter
<marcus.goldr...@googlemail.com <javascript:>> wrote:
I use Clojure 1.4.0 and wanted to use 'contains?' on a
vector and get following results:
=> (contains? [1 2 3] 3)
false
=> (contains? [1 2 3] 2)
true
As it seems 'contains?' does not check for the last entry in
the vector.
And an other question.
Why does contains? returns everytime 'false' when used on a
list?
=> (contains? (list 1 2 3) 1)
false
=> (contains? (list 1 2 3) 2)
false
=> (contains? (list 1 2 3) 3)
false
--
You received this message because you are subscribed to the
Google
Groups "Clojure" group.
To post to this group, send email to clo...@googlegroups.com
<javascript:>
Note that posts from new members are moderated - please be
patient with your first post.
To unsubscribe from this group, send email to
clojure+u...@googlegroups.com <javascript:>
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
<http://groups.google.com/group/clojure?hl=en>
--
You received this message because you are subscribed to the Google
Groups "Clojure" group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient
with your first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--
You received this message because you are subscribed to the Google
Groups "Clojure" group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient
with your first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--
You received this message because you are subscribed to the Google
Groups "Clojure" group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient
with your first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--
You received this message because you are subscribed to the Google
Groups "Clojure" group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
