Search results
catMaybes :: forall a. Array (Maybe a) -> Array a
Filter an array of optional values, keeping only the elements which contain a value, creating a new array.
catMaybes [Nothing, Just 2, Nothing, Just 4] = [2, 4]
untilJust :: forall a m. MonadRec m => m (Maybe a) -> m a
Supplied computation will be executed repeatedly until it evaluates
to Just value
and then that value
will be returned.
whileJust :: forall a m. Monoid a => MonadRec m => m (Maybe a) -> m a
While supplied computation evaluates to Just _
, it will be
executed repeatedly and results will be combined using monoid instance.
init :: forall a. Partial => Array a -> Array a
Get all but the last element of a non-empty array.
Running time: O(n)
, where n
is the length of the array.
nub :: forall a. Ord a => Array a -> Array a
Remove the duplicates from an array, creating a new array.
nub [1, 2, 1, 3, 3] = [1, 2, 3]
nubEq :: forall a. Eq a => Array a -> Array a
Remove the duplicates from an array, creating a new array.
This less efficient version of nub
only requires an Eq
instance.
nubEq [1, 2, 1, 3, 3] = [1, 2, 3]
reverse :: forall a. Array a -> Array a
Reverse an array, creating a new array.
reverse [] = []
reverse [1, 2, 3] = [3, 2, 1]
sort :: forall a. Ord a => Array a -> Array a
Sort the elements of an array in increasing order, creating a new array. Sorting is stable: the order of equal elements is preserved.
sort [2, -3, 1] = [-3, 1, 2]
tail :: forall a. Partial => Array a -> Array a
Get all but the first element of a non-empty array.
Running time: O(n)
, where n
is the length of the array.
filtered :: forall m a. MonadRec m => MonadGen m => m (Maybe a) -> m a
Creates a generator that repeatedly run another generator until it produces
Just
node. This will never halt if the input generator always produces Nothing
.
compact :: forall f a. Compactable f => f (Maybe a) -> f a
compactDefault :: forall f a. Functor f => Compactable f => f (Maybe a) -> f a
nubHash :: forall a. Hashable a => Array a -> Array a
Remove duplicates from an array.
Like nub
from Data.Array
, but uses a Hashable
constraint
instead of an Ord
constraint.
a_ :: forall html a. Html html => Array (html a) -> html a
Defines a hyperlink [No Attributes]
a_ :: forall html a. Html html => Array (html a) -> html a
Creates a hyperlink element [No Attributes]
abbr_ :: forall html a. Html html => Array (html a) -> html a
Defines an abbreviation [No Attributes]
address_ :: forall html a. Html html => Array (html a) -> html a
Defines contact information for the author/owner of a document [No Attributes]
altGlyph_ :: forall html a. Html html => Array (html a) -> html a
Defines an alternative representation of a glyph in a font [No Attributes]
altGlyphDef_ :: forall html a. Html html => Array (html a) -> html a
Defines a set of glyph substitutions for an altGlyph element [No Attributes]
altGlyphItem_ :: forall html a. Html html => Array (html a) -> html a
Defines a substitution for a specific glyph in an altGlyphDef element [No Attributes]
article_ :: forall html a. Html html => Array (html a) -> html a
Defines self-contained content, like blog posts or news articles [No Attributes]
aside_ :: forall html a. Html html => Array (html a) -> html a
Defines content aside from the content it is placed in [No Attributes]
audio_ :: forall html a. Html html => Array (html a) -> html a
Defines sound content, like music or other audio streams [No Attributes]
b_ :: forall html a. Html html => Array (html a) -> html a
Defines bold text [No Attributes]
bdi_ :: forall html a. Html html => Array (html a) -> html a
Defines text directionality for its children [No Attributes]
bdo_ :: forall html a. Html html => Array (html a) -> html a
Defines text directionality [No Attributes]
blockquote_ :: forall html a. Html html => Array (html a) -> html a
Defines a section that is quoted from another source [No Attributes]
body_ :: forall html a. Html html => Array (html a) -> html a
Defines the document's body [No Attributes]
button_ :: forall html a. Html html => Array (html a) -> html a
Defines a clickable button [No Attributes]
canvas_ :: forall html a. Html html => Array (html a) -> html a
Defines an area that can be used to draw graphics using JavaScript [No Attributes]
caption_ :: forall html a. Html html => Array (html a) -> html a
Defines a table caption [No Attributes]
cite_ :: forall html a. Html html => Array (html a) -> html a
Defines the title of a work [No Attributes]
clipPath_ :: forall html a. Html html => Array (html a) -> html a
Defines a clipping path for an SVG element [No Attributes]
code_ :: forall html a. Html html => Array (html a) -> html a
Defines a piece of computer code [No Attributes]
colgroup_ :: forall html a. Html html => Array (html a) -> html a
Defines attributes for a group of table columns [No Attributes]
colorProfile_ :: forall html a. Html html => Array (html a) -> html a
Defines a color profile for an SVG document [No Attributes]
data__ :: forall html a. Html html => Array (html a) -> html a
Defines machine-readable data [No Attributes]
datalist_ :: forall html a. Html html => Array (html a) -> html a
Defines a list of pre-defined options for input controls [No Attributes]
dd_ :: forall html a. Html html => Array (html a) -> html a
Defines a description/value of a term in a description list [No Attributes]
defs_ :: forall html a. Html html => Array (html a) -> html a
Defines a set of reusable SVG elements [No Attributes]
del_ :: forall html a. Html html => Array (html a) -> html a
Defines text that has been deleted from a document [No Attributes]
desc_ :: forall html a. Html html => Array (html a) -> html a
Defines a description of an SVG element [No Attributes]
details_ :: forall html a. Html html => Array (html a) -> html a
Defines additional details that the user can view or hide [No Attributes]
dfn_ :: forall html a. Html html => Array (html a) -> html a
Defines a definition term [No Attributes]
dialog_ :: forall html a. Html html => Array (html a) -> html a
Defines a dialog box or window [No Attributes]
div_ :: forall html a. Html html => Array (html a) -> html a
Defines a section of a document [No Attributes]
dl_ :: forall html a. Html html => Array (html a) -> html a
Defines a description list [No Attributes]
dt_ :: forall html a. Html html => Array (html a) -> html a
Defines a term in a description list [No Attributes]
em_ :: forall html a. Html html => Array (html a) -> html a
Defines emphasized text [No Attributes]
feMerge_ :: forall html a. Html html => Array (html a) -> html a
Merges multiple input images together [No Attributes]