init package:rio

init :: ByteString -> ByteString
rio RIO.ByteString.Lazy.Partial
O(n/c) Return all the elements of a ByteString except the last one.
init :: ByteString -> ByteString
rio RIO.ByteString.Partial
O(1) Return all the elements of a ByteString except the last one. An exception will be thrown in the case of an empty ByteString.
init :: [a] -> [a]
rio RIO.List.Partial
Return all the elements of a list except the last one. The list must be non-empty.
init :: NonEmpty a -> [a]
rio RIO.NonEmpty
Extract everything except the last element of the stream.
init :: Text -> Text
rio RIO.Text.Lazy.Partial
O(n/c) Returns all but the last character of a Text, which must be non-empty. Subject to fusion.
init :: Text -> Text
rio RIO.Text.Partial
O(1) Returns all but the last character of a Text, which must be non-empty. Subject to fusion.
init :: Vector a -> Vector a
rio RIO.Vector.Boxed.Partial
O(1) Yield all but the last element without copying. The vector may not be empty.
init :: Vector v a => v a -> v a
rio RIO.Vector.Partial
O(1) Yield all but the last element without copying. The vector may not be empty.
init :: Storable a => Vector a -> Vector a
rio RIO.Vector.Storable.Partial
O(1) Yield all but the last element without copying. The vector may not be empty.
init :: Unbox a => Vector a -> Vector a
rio RIO.Vector.Unboxed.Partial
O(1) Yield all but the last element without copying. The vector may not be empty.
inits :: ByteString -> [ByteString]
rio RIO.ByteString RIO.ByteString.Lazy
O(n) Return all initial segments of the given ByteString, shortest first.
initMaybe :: [a] -> Maybe [a]
rio RIO.List
inits :: [a] -> [[a]]
rio RIO.List
The inits function returns all initial segments of the argument, shortest first. For example, 
>>> inits "abc"
["","a","ab","abc"]
Note that inits has the following strictness property: inits (xs ++ _|_) = inits xs ++ _|_ In particular, inits _|_ = [] : _|_
inits :: Foldable f => f a -> NonEmpty [a]
rio RIO.NonEmpty
The inits function takes a stream xs and returns all the finite prefixes of xs.
inits :: Seq a -> Seq (Seq a)
rio RIO.Seq
Returns a sequence of all prefixes of this sequence, shortest first. For example, 
inits (fromList "abc") = fromList [fromList "", fromList "a", fromList "ab", fromList "abc"]
Evaluating the <math>th prefix takes <math>, but evaluating every prefix in the sequence takes <math> due to sharing.
inits :: Text -> [Text]
rio RIO.Text RIO.Text.Lazy
O(n) Return all initial segments of the given Text, shortest first.
InitialQuote :: GeneralCategory
rio RIO.Char
Pi: Punctuation, Initial quote
_init :: Snoc s s a a => Traversal' s s
rio RIO.Lens
_init gives you access to all-but-the-last elements of the list: 
>>> "Hello." ^. _init
"Hello"
See documentation for _tail, as _init and _tail are pretty similar.
isInfinite :: RealFloat a => a -> Bool
rio RIO.Prelude
True if the argument is an IEEE infinity or negative infinity
unsafeInit :: Vector a -> Vector a
rio RIO.Vector.Boxed.Unsafe
O(1) Yield all but the last element without copying. The vector may not be empty but this is not checked.
unsafeInit :: Storable a => Vector a -> Vector a
rio RIO.Vector.Storable.Unsafe
O(1) Yield all but the last element without copying. The vector may not be empty but this is not checked.
unsafeInit :: Unbox a => Vector a -> Vector a
rio RIO.Vector.Unboxed.Unsafe
O(1) Yield all but the last element without copying. The vector may not be empty but this is not checked.
unsafeInit :: Vector v a => v a -> v a
rio RIO.Vector.Unsafe
O(1) Yield all but the last element without copying. The vector may not be empty but this is not checked.