final
object
Empty
extends
View
with
Product0
The empty view
Constructors
Members
def
iterator
: Iterator
[
A
]
override
def
knownSize
: Int
The number of elements in this collection, if it can be cheaply computed, -1 otherwise. Cheaply usually means: Not requiring a collection traversal.
The number of elements in this collection, if it can be cheaply computed, -1 otherwise. Cheaply usually means: Not requiring a collection traversal.