Re: Length of Sequence

2009-02-15 Thread Chouser
On Wed, Jan 28, 2009 at 6:17 PM, Peter Wolf wrote: > > How about this? Needlessly wordy to make it more search-able... > > clojure.core/count > ([coll]) > Returns the length of a list or vector, the number of keys in a map, > the size of a string, or the number of items in a sequence or > colle

Re: Length of Sequence

2009-01-28 Thread Peter Wolf
How about this? Needlessly wordy to make it more search-able... clojure.core/count ([coll]) Returns the length of a list or vector, the number of keys in a map, the size of a string, or the number of items in a sequence or collection. (count nil) returns 0. Also works on Java Collections a

Re: Length of Sequence

2009-01-28 Thread Rich Hickey
On Jan 28, 2:19 pm, Chouser wrote: > On Wed, Jan 28, 2009 at 2:15 PM, Peter Wolf wrote: > > > How do I get the length of a sequence? Is there some generic way to > > find the number of elements in something that might be list, map, vector > > or lazy? > > user=> (doc count) >

Re: Length of Sequence

2009-01-28 Thread Peter Wolf
Thanks guys! I knew I could 'count' on you ;-) Chouser wrote: > On Wed, Jan 28, 2009 at 2:15 PM, Peter Wolf wrote: > >> How do I get the length of a sequence? Is there some generic way to >> find the number of elements in something that might be list, map, vector >> or lazy? >> > > use

Re: Length of Sequence

2009-01-28 Thread Kevin Downey
(doc count) - clojure.core/count ([coll]) Returns the number of items in the collection. (count nil) returns 0. Also works on strings, arrays, and Java Collections and Maps nil On Wed, Jan 28, 2009 at 11:15 AM, Peter Wolf wrote: > > Here's a dumb question, but I can

Re: Length of Sequence

2009-01-28 Thread Chouser
On Wed, Jan 28, 2009 at 2:15 PM, Peter Wolf wrote: > > How do I get the length of a sequence? Is there some generic way to > find the number of elements in something that might be list, map, vector > or lazy? user=> (doc count) - clojure.core/count ([coll]) Returns the

Length of Sequence

2009-01-28 Thread Peter Wolf
Here's a dumb question, but I can't find it in the docs: How do I get the length of a sequence? Is there some generic way to find the number of elements in something that might be list, map, vector or lazy? There must be some sort of built in function, or an idiom Thanks P --~--~-~-