Identity overview
Added in v2.0.0
Table of contents
Alt
alt
Identifies an associative operation on a type constructor. It is similar to Semigroup, except that it applies to
types of kind * -> *.
Signature
export declare const alt: <A>(that: () => A) => (fa: A) => A
Added in v2.0.0
Applicative
of
Signature
export declare const of: <A>(a: A) => A
Added in v2.0.0
Apply
ap
Apply a function to an argument under a type constructor.
Signature
export declare const ap: <A>(fa: A) => <B>(fab: (a: A) => B) => B
Added in v2.0.0
apFirst
Combine two effectful actions, keeping only the result of the first.
Signature
export declare const apFirst: <B>(fb: B) => <A>(fa: A) => A
Added in v2.0.0
apSecond
Combine two effectful actions, keeping only the result of the second.
Signature
export declare const apSecond: <B>(fb: B) => <A>(fa: A) => B
Added in v2.0.0
Extend
duplicate
Signature
export declare const duplicate: <A>(ma: A) => A
Added in v2.0.0
extend
Signature
export declare const extend: <A, B>(f: (wa: A) => B) => (wa: A) => B
Added in v2.0.0
Extract
extract
Signature
export declare const extract: <A>(wa: A) => A
Added in v2.6.2
Foldable
foldMap
Signature
export declare const foldMap: <M>(M: Monoid<M>) => <A>(f: (a: A) => M) => (fa: A) => M
Added in v2.0.0
reduce
Signature
export declare const reduce: <A, B>(b: B, f: (b: B, a: A) => B) => (fa: A) => B
Added in v2.0.0
reduceRight
Signature
export declare const reduceRight: <A, B>(b: B, f: (a: A, b: B) => B) => (fa: A) => B
Added in v2.0.0
Functor
map
map can be used to turn functions (a: A) => B into functions (fa: F<A>) => F<B> whose argument and return types
use the type constructor F to represent some computational context.
Signature
export declare const map: <A, B>(f: (a: A) => B) => (fa: A) => B
Added in v2.0.0
Monad
chain
Composes computations in sequence, using the return value of one computation to determine the next computation.
Signature
export declare const chain: <A, B>(f: (a: A) => B) => (ma: A) => B
Added in v2.0.0
chainFirst
Composes computations in sequence, using the return value of one computation to determine the next computation and keeping only the result of the first.
Signature
export declare const chainFirst: <A, B>(f: (a: A) => B) => (ma: A) => A
Added in v2.0.0
flatten
Signature
export declare const flatten: <A>(mma: A) => A
Added in v2.0.0
instances
URI
Signature
export declare const URI: 'Identity'
Added in v2.0.0
URI (type alias)
Signature
export type URI = typeof URI
Added in v2.0.0
altIdentity
Signature
export declare const altIdentity: Alt1<'Identity'>
Added in v2.7.0
applicativeIdentity
Signature
export declare const applicativeIdentity: Applicative1<'Identity'>
Added in v2.7.0
chainRecIdentity
Signature
export declare const chainRecIdentity: ChainRec1<'Identity'>
Added in v2.7.0
comonadIdentity
Signature
export declare const comonadIdentity: Comonad1<'Identity'>
Added in v2.7.0
foldableIdentity
Signature
export declare const foldableIdentity: Foldable1<'Identity'>
Added in v2.7.0
functorIdentity
Signature
export declare const functorIdentity: Functor1<'Identity'>
Added in v2.7.0
getEq
Signature
export declare const getEq: <A>(E: Eq<A>) => Eq<A>
Added in v2.0.0
getShow
Signature
export declare const getShow: <A>(S: Show<A>) => Show<A>
Added in v2.0.0
monadIdentity
Signature
export declare const monadIdentity: Monad1<'Identity'>
Added in v2.7.0
traversableIdentity
Signature
export declare const traversableIdentity: Traversable1<'Identity'>
Added in v2.7.0
identity
Signature
export declare const identity: Monad1<'Identity'> &
Foldable1<'Identity'> &
Traversable1<'Identity'> &
Alt1<'Identity'> &
Comonad1<'Identity'> &
ChainRec1<'Identity'>
Added in v2.0.0
model
Identity (type alias)
Signature
export type Identity<A> = A
Added in v2.0.0
utils
sequence
Signature
export declare const sequence: Sequence1<'Identity'>
Added in v2.6.3
traverse
Signature
export declare const traverse: PipeableTraverse1<'Identity'>
Added in v2.6.3