Hi.
Am 19.08.2010 um 22:14 schrieb Nicolas Oury:
>> in because I was getting null pointer exceptions when the string was
>> null. What is the difference between {:count 1 :words (list words)}
>> and a hash-map? I was under the impression that {} created a hash.
>>
> I just find it easier to read because it looks like a value and not a
> function call.
Another difference is that in this case it creates not a hash map but an array
map. Rule of thumb: up to 8 keys => array map, more than 8 => hash map. The
array map is simply a short alist, not a full blown hash map. For such small
maps this is faster than pulling at the hash cannon. So the difference is not
limited to syntax alone.
Sincerely
Meikel
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