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Tuple overview

Added in v2.0.0


Table of contents


Bifunctor

bimap

Map a pair of functions over the two type arguments of the bifunctor.

Signature

export declare const bimap: <E, G, A, B>(mapSnd: (e: E) => G, mapFst: (a: A) => B) => (fa: [A, E]) => [B, G]

Added in v2.0.0

mapSnd

Map a function over the second component of a Tuple.

This is the mapLeft operation of the Bifunctor instance.

Signature

export declare const mapSnd: <E, G>(f: (e: E) => G) => <A>(fa: [A, E]) => [A, G]

Added in v2.10.0

Extend

extend

Signature

export declare const extend: <E, A, B>(f: (wa: [A, E]) => B) => (wa: [A, E]) => [B, E]

Added in v2.0.0

Extract

extract

Signature

export declare const extract: <E, A>(wa: [A, E]) => A

Added in v2.6.2

Foldable

foldMap

Signature

export declare const foldMap: <M>(M: Monoid<M>) => <A>(f: (a: A) => M) => <E>(fa: [A, E]) => M

Added in v2.0.0

reduce

Signature

export declare const reduce: <A, B>(b: B, f: (b: B, a: A) => B) => <E>(fa: [A, E]) => B

Added in v2.0.0

reduceRight

Signature

export declare const reduceRight: <A, B>(b: B, f: (a: A, b: B) => B) => <E>(fa: [A, E]) => B

Added in v2.0.0

Functor

mapFst

Map a function over the first component of a Tuple.

This is the map operation of the Functor instance.

Signature

export declare const mapFst: <A, B>(f: (a: A) => B) => <E>(fa: [A, E]) => [B, E]

Added in v2.0.0

Semigroupoid

compose

Signature

export declare const compose: <A, B>(ab: [B, A]) => <C>(bc: [C, B]) => [C, A]

Added in v2.0.0

combinators

duplicate

Derivable from Extend.

Signature

export declare const duplicate: <E, A>(wa: [A, E]) => [[A, E], E]

Added in v2.0.0

flap

Derivable from Functor.

Signature

export declare const flap: <A>(a: A) => <E, B>(fab: [(a: A) => B, E]) => [B, E]

Added in v2.10.0

swap

Signature

export declare const swap: <A, E>(ea: [A, E]) => [E, A]

Added in v2.0.0

destructors

fst

Signature

export declare const fst: <A, E>(ea: [A, E]) => A

Added in v2.0.0

snd

Signature

export declare const snd: <A, E>(ea: [A, E]) => E

Added in v2.0.0

instances

Bifunctor

Signature

export declare const Bifunctor: Bifunctor2<'Tuple'>

Added in v2.7.0

Comonad

Signature

export declare const Comonad: Comonad2<'Tuple'>

Added in v2.7.0

Foldable

Signature

export declare const Foldable: Foldable2<'Tuple'>

Added in v2.7.0

Functor

Signature

export declare const Functor: Functor2<'Tuple'>

Added in v2.7.0

Semigroupoid

Signature

export declare const Semigroupoid: Semigroupoid2<'Tuple'>

Added in v2.7.0

Traversable

Signature

export declare const Traversable: Traversable2<'Tuple'>

Added in v2.7.0

URI

Signature

export declare const URI: 'Tuple'

Added in v2.0.0

URI (type alias)

Signature

export type URI = typeof URI

Added in v2.0.0

getApplicative

Signature

export declare function getApplicative<M>(M: Monoid<M>): Applicative2C<URI, M>

Added in v2.0.0

getApply

Signature

export declare function getApply<S>(S: Semigroup<S>): Apply2C<URI, S>

Added in v2.0.0

getChain

Signature

export declare function getChain<S>(S: Semigroup<S>): Chain2C<URI, S>

Added in v2.0.0

getChainRec

Signature

export declare function getChainRec<M>(M: Monoid<M>): ChainRec2C<URI, M>

Added in v2.0.0

getMonad

Signature

export declare function getMonad<M>(M: Monoid<M>): Monad2C<URI, M>

Added in v2.0.0

tuple

Use small, specific instances instead.

Signature

export declare const tuple: Semigroupoid2<'Tuple'> &
  Bifunctor2<'Tuple'> &
  Comonad2<'Tuple'> &
  Foldable2<'Tuple'> &
  Traversable2<'Tuple'>

Added in v2.0.0

utils

sequence

Signature

export declare const sequence: Sequence2<'Tuple'>

Added in v2.6.3

traverse

Signature

export declare const traverse: PipeableTraverse2<'Tuple'>

Added in v2.6.3

mapLeft

Use mapSnd instead.

Signature

export declare const mapLeft: <E, G>(f: (e: E) => G) => <A>(fa: [A, E]) => [A, G]

Added in v2.0.0

map

Use mapFst instead.

Signature

export declare const map: <A, B>(f: (a: A) => B) => <E>(fa: [A, E]) => [B, E]

Added in v2.0.0