length
Returns the size/length of a finite structure as an
Int. The
default implementation just counts elements starting with the
leftmost. Instances for structures that can compute the element count
faster than via element-by-element counting, should provide a
specialised implementation.
Examples
Basic usage:
>>> length []
0
>>> length ['a', 'b', 'c']
3
>>> length [1..]
* Hangs forever *
length returns the length of a finite list as an
Int. It is an instance of the more general
genericLength, the result type of which may be any kind of
number.
>>> length []
0
>>> length ['a', 'b', 'c']
3
>>> length [1..]
* Hangs forever *
O(1) length returns the length of a ByteString as an
Int.
O(c) length returns the length of a ByteString as an
Int64
The number of elements in the sequence.
O(n) Returns the number of characters in a
Text.
O(n) Returns the number of characters in a text.
O(n) Returns the number of characters in a
Text.
O(1) Yield the length of the vector.
O(1) Yield the length of the vector.
Length of the mutable vector.
Length of the mutable vector.
O(1) Yield the length of the vector.
Length of the mutable vector.
O(1) Yield the length of the vector.
Length of the mutable vector.
O(1) Yield the length of the vector.
Length of the mutable vector.
Count how many values are in the stream.
Subject to fusion