Added in v2.5.0
Map a pair of functions over the two type arguments of the bifunctor.
Signature
export declare const bimap: <E, G, A, B>(f: (e: E) => G, g: (a: A) => B) => (fa: readonly [A, E]) => readonly [B, G]
Added in v2.5.0
Map a function over the first type argument of a bifunctor.
Signature
export declare const mapLeft: <E, G>(f: (e: E) => G) => <A>(fa: readonly [A, E]) => readonly [A, G]
Added in v2.5.0
Signature
export declare const extend: <E, A, B>(f: (wa: readonly [A, E]) => B) => (wa: readonly [A, E]) => readonly [B, E]
Added in v2.5.0
Signature
export declare const extract: <E, A>(wa: readonly [A, E]) => A
Added in v2.6.2
Signature
export declare const foldMap: <M>(M: Monoid<M>) => <A>(f: (a: A) => M) => <E>(fa: readonly [A, E]) => M
Added in v2.5.0
Signature
export declare const reduce: <A, B>(b: B, f: (b: B, a: A) => B) => <E>(fa: readonly [A, E]) => B
Added in v2.5.0
Signature
export declare const reduceRight: <A, B>(b: B, f: (a: A, b: B) => B) => <E>(fa: readonly [A, E]) => B
Added in v2.5.0
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) => <E>(fa: readonly [A, E]) => readonly [B, E]
Added in v2.5.0
Signature
export declare const compose: <A, B>(ab: readonly [B, A]) => <C>(bc: readonly [C, B]) => readonly [C, A]
Added in v2.5.0
Derivable from Extend
.
Signature
export declare const duplicate: <E, A>(wa: readonly [A, E]) => readonly [readonly [A, E], E]
Added in v2.5.0
Signature
export declare function swap<A, E>(ea: readonly [A, E]): readonly [E, A]
Added in v2.5.0
Signature
export declare function fst<A, E>(ea: readonly [A, E]): A
Added in v2.5.0
Signature
export declare function snd<A, E>(ea: readonly [A, E]): E
Added in v2.5.0
Signature
export declare const Bifunctor: Bifunctor2<'ReadonlyTuple'>
Added in v2.7.0
Signature
export declare const Comonad: Comonad2<'ReadonlyTuple'>
Added in v2.7.0
Signature
export declare const Foldable: Foldable2<'ReadonlyTuple'>
Added in v2.7.0
Signature
export declare const Functor: Functor2<'ReadonlyTuple'>
Added in v2.7.0
Signature
export declare const Semigroupoid: Semigroupoid2<'ReadonlyTuple'>
Added in v2.7.0
Signature
export declare const Traversable: Traversable2<'ReadonlyTuple'>
Added in v2.7.0
Signature
export declare const URI: 'ReadonlyTuple'
Added in v2.5.0
Signature
export type URI = typeof URI
Added in v2.5.0
Signature
export declare function getApplicative<M>(M: Monoid<M>): Applicative2C<URI, M>
Added in v2.5.0
Signature
export declare function getApply<S>(S: Semigroup<S>): Apply2C<URI, S>
Added in v2.5.0
Signature
export declare function getChain<S>(S: Semigroup<S>): Chain2C<URI, S>
Added in v2.5.0
Signature
export declare function getChainRec<M>(M: Monoid<M>): ChainRec2C<URI, M>
Added in v2.5.0
Signature
export declare function getMonad<M>(M: Monoid<M>): Monad2C<URI, M>
Added in v2.5.0
Signature
export declare const readonlyTuple: Semigroupoid2<'ReadonlyTuple'> &
Bifunctor2<'ReadonlyTuple'> &
Comonad2<'ReadonlyTuple'> &
Foldable2<'ReadonlyTuple'> &
Traversable2<'ReadonlyTuple'>
Added in v2.5.0
Signature
export declare const sequence: Sequence2<'ReadonlyTuple'>
Added in v2.6.3
Signature
export declare const traverse: PipeableTraverse2<'ReadonlyTuple'>
Added in v2.6.3