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currentTarget :: forall e. IsEvent e => e -> Node

The element that the event listener was added to.

target :: forall e. IsEvent e => e -> Node

The element that was the source of the event.

toNode :: forall n. IsNode n => n -> Node

toNode :: forall n. NodeOp n => n -> Node

abs :: forall a. Ord a => Ring a => a -> a

The absolute value function. abs x is defined as if x >= zero then x else negate x.

from :: forall a rep. Generic a rep => a -> rep

genericNot :: forall a rep. Generic a rep => GenericHeytingAlgebra rep => a -> a

A Generic implementation of the not member from the HeytingAlgebra type class.

genericNot' :: forall a. GenericHeytingAlgebra a => a -> a

negate :: forall a. Ring a => a -> a

negate x can be used as a shorthand for zero - x.

not :: forall a. HeytingAlgebra a => a -> a

recip :: forall a. DivisionRing a => a -> a

signum :: forall a. Ord a => Ring a => a -> a

The sign function; returns one if the argument is positive, negate one if the argument is negative, or zero if the argument is zero. For floating point numbers with signed zeroes, when called with a zero, this function returns the argument in order to preserve the sign. For any x, we should have signum x * abs x == x.

to :: forall a rep. Generic a rep => rep -> a

unwrap :: forall t a. Newtype t a => t -> a

wrap :: forall t a. Newtype t a => a -> t

unsafeCoerce :: forall a b. a -> b

A highly unsafe function, which can be used to persuade the type system that any type is the same as any other type. When using this function, it is your (that is, the caller's) responsibility to ensure that the underlying representation for both types is the same.

Because this function is extraordinarily flexible, type inference can greatly suffer. It is highly recommended to define specializations of this function rather than using it as-is. For example:

fromBoolean :: Boolean -> Json
fromBoolean = unsafeCoerce

This way, you won't have any nasty surprises due to the inferred type being different to what you expected.

After the v0.14.0 PureScript release, some of what was accomplished via unsafeCoerce can now be accomplished via coerce from purescript-safe-coerce. See that library's documentation for more context.

inj :: forall a b. Inject a b => a -> b

unsafePartial :: forall a. (Partial => a) -> a

Discharge a partiality constraint, unsafely.

from :: forall a b. TypeEquals a b => b -> a

to :: forall a b. TypeEquals a b => a -> b

convertDuration :: forall a b. Duration a => Duration b => a -> b

Converts directly between durations of differing types.

negateDuration :: forall a. Duration a => a -> a

Negates a duration, turning a positive duration negative or a negative duration positive.

coerce :: forall a b. Coercible a b => a -> b

Coerce a value of one type to a value of some other type, without changing its runtime representation. This function behaves identically to unsafeCoerce at runtime. Unlike unsafeCoerce, it is safe, because the Coercible constraint prevents any use of this function from compiling unless the compiler can prove that the two types have the same runtime representation.

One application for this function is to avoid doing work that you know is a no-op because of newtypes. For example, if you have an Array (Conj a) and you want an Array (Disj a), you could do Data.Array.map (un Conj >>> Disj), but this performs an unnecessary traversal of the array, with O(n) cost. coerce accomplishes the same with only O(1) cost:

mapConjToDisj :: forall a. Array (Conj a) -> Array (Disj a)
mapConjToDisj = coerce

div10 :: forall x q. Div10 x q => x -> q

isDivBy :: forall d x. IsDivBy d x => d -> x

mul10 :: forall x q. Mul10 x q => x -> q

not :: forall b1 b2. Not b1 b2 => b1 -> b2

pred :: forall x y. Pred x y => x -> y

succ :: forall x y. Succ x y => x -> y

cast :: forall a b. Castable a b => a -> b

coerce :: forall expected given. Coerce given expected => given -> expected

coerce :: forall expected given. Coerce given expected => given -> expected

coerceReactProps :: forall props nonDataProps targetProps. CoerceReactProps props nonDataProps targetProps => props -> targetProps

ginverse :: forall g. Group g => g -> g

unsafeHideDataProps :: forall props without. WithoutDataProps props without => props -> without

convertImpl :: forall input output. ToInternalConverter input output => input -> output

convertTo :: forall t f r. Recursive t f => Corecursive r f => t -> r

fill :: forall partial complete. Fillable partial complete => partial -> complete

justify :: forall unjust just. Justifiable unjust just => unjust -> just

mnegateL :: forall r x. LeftModule x r => x -> x

mnegateR :: forall r x. RightModule x r => x -> x

nextPrime :: forall a. Ord a => Semiring a => EuclideanRing a => a -> a

Ad infinitum

pad :: forall @n a b. Pad n a b => a -> b

unpad :: forall @n a b. Unpad n a b => b -> a

area :: forall s n. ToSize n s => Semiring n => s -> n

Get the area of a size

convertPos :: forall p1 p2 n. ToPos n p1 => FromPos n p2 => p1 -> p2

convertRegion :: forall p1 p2 n. ToRegion n p1 => FromRegion n p2 => p1 -> p2

convertSize :: forall p1 p2 n. ToSize n p1 => FromSize n p2 => p1 -> p2

init :: forall fn a. Init fn a => fn -> a

initProduct :: forall f a. InitProduct f a => f -> a