length -package:hspec -package:text

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 *
Number of elements in NonEmpty list.
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
O(1) The length of a ShortByteString.
The number of elements in the sequence.
O(1) Yield the length of the vector.
Length of a Bundle
Length of a Bundle
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
Counts the number of characters encoded in the bytestring. Note that this includes replacement characters.
Counts the number of characters encoded in the bytestring. Note that this includes replacement characters.
Counts the number of characters encoded in the bytestring. Note that this includes replacement characters. The function is linear in the number of bytes in the representation.
Return the length in bytes of a bytearray