Except when they are small enough to conveniently be array-maps:
user=> (class (into {} (zipmap (range) (range 8
clojure.lang.PersistentArrayMap
user=> (class (into {} (zipmap (range) (range 9
clojure.lang.PersistentHashMap
But those behave just like hash-maps, so you can ignore the
diffe
Wow, this brings more light to the subject. Thank you guys for your
explanations and practical uses.
On Nov 2, 1:31 am, Rasmus Svensson wrote:
> 2010/11/1 tonyl :
>
> > I was wondering since it uses the dispatch macro and AFAIK
> > there is no api fn to create them like hash-maps to create maps,
2010/11/1 tonyl :
> I was wondering since it uses the dispatch macro and AFAIK
> there is no api fn to create them like hash-maps to create maps,
> vector/vec for vectors, or list for lists.
There are parallels to 'hash-map' and 'sorted-map' in the api:
user=> (hash-set :a :b :c)
#{:a :c :b}
user
Or just this:
user=> (set [1 2 3 4 5 8 8 9 6 6 4])
#{1 2 3 4 5 6 8 9}
On Nov 1, 8:11 am, Shantanu Kumar wrote:
> You can write something like this:
>
> user=> (into #{} [1 2 3 4 5 8 8 9 6 6 4])
> #{1 2 3 4 5 6 8 9}
>
> Cheers,
> Shantanu
>
> On Nov 1, 7:55 am, tonyl wrote:
>
>
>
>
>
>
>
> > I g
>From a mathematical perspective the essential aspect of a set is its
>extension, namely what elements are contained in the set. This leads
>immediately to the property of uniqueness you mentioned. But the fundamental
>operation is 'contains?'. In other words, does the set contain some object or
You can write something like this:
user=> (into #{} [1 2 3 4 5 8 8 9 6 6 4])
#{1 2 3 4 5 6 8 9}
Cheers,
Shantanu
On Nov 1, 7:55 am, tonyl wrote:
> I guess I should've look harder (and ask more in the irc ;) it is a
> data structure and has a set fn too. #{} is just a reader macro for
> syntacti
I guess I should've look harder (and ask more in the irc ;) it is a
data structure and has a set fn too. #{} is just a reader macro for
syntactic sugar. And the difference of usage between sets and vectors
are they sets can't have duplicates.
This is great, clojure group with irc chat, good learnin
