fun length: Int

core :: Collection :: length

Number of items in the collection.

assert [10,20,30].length == 3
assert [20..30[.length   == 10

Property definitions

core $ Collection :: length 
	# Number of items in the collection.
	#
	#     assert [10,20,30].length == 3
	#     assert [20..30[.length   == 10
	fun length: Int
	do
		var nb = 0
		for i in self do nb += 1
		return nb
	end
lib/core/collection/abstract_collection.nit:77,2--86,4

core $ Range :: length 
	#     assert [1..10].length		== 10
	#     assert [1..10[.length		== 9
	#     assert [1..1].length		== 1
	#     assert [1..-10].length	== 0
	redef fun length
	do
		if is_empty then return 0
		var nb = first.distance(after)
		if nb > 0 then
			return nb
		else
			return 0
		end
	end
lib/core/collection/range.nit:61,2--74,4

pthreads $ ConcurrentCollection :: length 
	redef fun length
	do
		mutex.lock
		var r = real_collection.length
		mutex.unlock
		return r
	end
lib/pthreads/concurrent_collections.nit:140,2--146,4

cartesian $ Cartesian :: length 
	redef fun length do return ce.length * cf.length
lib/cartesian/cartesian.nit:116,2--49

combinations $ CartesianCollection :: length 
	redef fun length
	do
		var res = 1
		for c in collections do res = res * c.length
		return res
	end
lib/combinations/combinations.nit:108,2--113,4

combinations $ CombinationCollection :: length 
	redef fun length
	do
		var n = collection.length
		if are_unique then
			if repeat > n then
				return 0
			end
			if are_sorted then
				return n.factorial / repeat.factorial
			else
				return n.factorial / (n-repeat).factorial
			end
		else
			if are_sorted then
				return (n+repeat-1).factorial / repeat.factorial / (n-1).factorial
			else
				return n ** repeat
			end
		end
	end
lib/combinations/combinations.nit:287,2--306,4

core $ Ref :: length 
	redef fun length do return 1
lib/core/collection/abstract_collection.nit:362,2--29

core $ AbstractArrayRead :: length 
	redef var length = 0
lib/core/collection/array.nit:26,2--21

core $ ArrayMapKeys :: length 
	redef fun length do return self.map.length
lib/core/collection/array.nit:811,2--43

core $ ArrayMapValues :: length 
	redef fun length do return self.map.length
lib/core/collection/array.nit:828,2--43

core $ HashMapKeys :: length 
	redef fun length do return self.map.length
lib/core/collection/hash_collection.nit:295,2--43

core $ HashMapValues :: length 
	redef fun length do return self.map.length
lib/core/collection/hash_collection.nit:344,2--43

core $ StringCharView :: length 
	redef fun length do return target.length
lib/core/text/abstract_text.nit:1456,2--41

core $ StringByteView :: length 
	redef fun length do return target.byte_length
lib/core/text/abstract_text.nit:1474,2--46

nitcc_runtime $ NProdChildren :: length 
	redef fun length do return prod.number_of_children
lib/nitcc_runtime/nitcc_runtime.nit:578,2--51

ordered_tree $ OrderedTree :: length 
	redef fun length do return parents.length
lib/ordered_tree/ordered_tree.nit:78,2--42

core $ ProxyQueue :: length 
	redef fun length do return seq.length
lib/core/queue.nit:144,2--38

core $ RandQueue :: length 
	redef fun length do return seq.length
lib/core/queue.nit:202,2--38

core $ MinHeap :: length 
	redef fun length do return items.length
lib/core/queue.nit:239,2--40

java $ JavaIntArray :: length 
	redef fun length in "Java" `{ return self.length; `}
lib/java/collections.nit:60,2--53

java $ JavaShortArray :: length 
	redef fun length in "Java" `{ return self.length; `}
lib/java/collections.nit:74,2--53

java $ JavaLongArray :: length 
	redef fun length in "Java" `{ return self.length; `}
lib/java/collections.nit:88,2--53

java $ JavaFloatArray :: length 
	redef fun length in "Java" `{ return self.length; `}
lib/java/collections.nit:105,2--53

java $ JavaDoubleArray :: length 
	redef fun length in "Java" `{ return self.length; `}
lib/java/collections.nit:119,2--53

java $ JavaArray :: length 
	redef fun length in "Java" `{ return self.length; `}
lib/java/collections.nit:133,2--53

java $ JavaBoolArray :: length 
	redef fun length in "Java" `{ return self.length; `}
lib/java/collections.nit:147,2--53

java $ JavaByteArray :: length 
	redef fun length in "Java" `{ return self.length; `}
lib/java/collections.nit:161,2--53

java $ JavaCharArray :: length 
	redef fun length in "Java" `{ return self.length; `}
lib/java/collections.nit:175,2--53

neo4j $ SequentialNodeCollection :: length 
	redef var length = 0
lib/neo4j/graph/sequential_id.nit:55,2--21

core $ ArraySet :: length 
	redef fun length do return _array.length
lib/core/collection/array.nit:606,2--41

core $ List :: length 
	# O(1)
	redef var length = 0
lib/core/collection/list.nit:45,2--46,21

core $ CircularArray :: length 
	redef var length = 0
lib/core/collection/circular_array.nit:62,2--21

more_collections $ UnrolledList :: length 
	redef var length = 0
lib/more_collections/more_collections.nit:373,2--21

dom $ XMLEntities :: length 
	redef fun length do return entities.length
lib/dom/xml_entities.nit:66,2--43

dummy_array $ DummyArray :: length 
	redef var length: Int
lib/dummy_array/dummy_array.nit:18,2--22

core $ HashSet :: length 
	redef fun length do return _the_length
lib/core/collection/hash_collection.nit:432,2--39

core $ Bytes :: length 
	# Number of bytes in the array
	redef var length
lib/core/bytes.nit:245,2--246,17

pthreads $ ConcurrentArray :: length 
	redef fun length
	do
		mutex.lock
		var r = real_collection.length
		mutex.unlock
		return r
	end
lib/pthreads/concurrent_collections.nit:443,2--449,4
Nit standard library. Version .