empty -package:vector -package:text

The identity of <|>

O(1) The empty ByteString

The Builder denoting a zero-length sequence of bytes. This function is only exported for use in rewriting rules. Use mempty otherwise.

O(1). The empty ShortByteString.

The empty map.

empty      == fromList []
size empty == 0

The empty set.

The empty map.

empty      == fromList []
size empty == 0

The empty sequence.

The empty set.

Construct an empty map.

Construct an empty map.

Construct an empty set.

>>> HashSet.empty
fromList []

O(1). The empty Builder, satisfying

• toLazyByteString empty =
  empty

The empty document, with no height and no width. empty is the identity for <>, <+>, $$ and $+$, and anywhere in the argument list for sep, hcat, hsep, vcat, fcat etc.

The empty document, with no height and no width. empty is the identity for <>, <+>, $$ and $+$, and anywhere in the argument list for sep, hcat, hsep, vcat, fcat etc.

Construct the empty value for a datatype. For algebraic datatypes, the leftmost constructor is chosen.

An empty Graph.

Create an empty byte array

Create an empty byte array

empty is a DList with no elements. empty obeys the law:

toList empty = []