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Store

Instances​

Extract​

Mapping​

Model​

Type lambdas​

Utilities​

Instances​

Comonad​

Signature​

export declare const Comonad: Comonad2<URI>

Details​

  • Added in 0.1.0

License​

  • MIT – Copyright (c) 2017-present Giulio Canti

Functor​

Signature​

export declare const Functor: Functor2<URI>

Details​

  • Added in 0.1.0

License​

  • MIT – Copyright (c) 2017-present Giulio Canti

Extract​

extract​

Signature​

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

Details​

  • Added in 0.1.0

License​

  • MIT – Copyright (c) 2017-present Giulio Canti

Mapping​

flap​

Signature​

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

Details​

  • Added in 0.1.0

License​

  • MIT – Copyright (c) 2017-present Giulio Canti

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) => <E>(fa: Store<E, A>) => Store<E, B>

Details​

  • Added in 0.1.0

License​

  • MIT – Copyright (c) 2017-present Giulio Canti

Model​

Store​

Signature​

export interface Store<S, A> {
  readonly peek: (s: S) => A
  readonly pos: S
}

Details​

  • Added in 0.1.0

License​

  • MIT – Copyright (c) 2017-present Giulio Canti

Type lambdas​

URI​

Signature​

export type URI = typeof URI

Details​

  • Added in 0.1.0

License​

  • MIT – Copyright (c) 2017-present Giulio Canti

URI​

Signature​

export declare const URI = 'Store'

Details​

  • Added in 0.1.0

License​

  • MIT – Copyright (c) 2017-present Giulio Canti

Utilities​

duplicate​

Signature​

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

Details​

  • Added in 0.1.0

License​

  • MIT – Copyright (c) 2017-present Giulio Canti

experiment​

Extract a collection of values from positions which depend on the current position

Signature​

export declare function experiment<F extends URIS3>(
  F: Functor3<F>,
): <R, E, S>(f: (s: S) => Kind3<F, R, E, S>) => <A>(wa: Store<S, A>) => Kind3<F, R, E, A>



export declare function experiment<F extends URIS3, E>(
  F: Functor3C<F, E>,
): <R, S>(f: (s: S) => Kind3<F, R, E, S>) => <A>(wa: Store<S, A>) => Kind3<F, R, E, A>



export declare function experiment<F extends URIS2>(
  F: Functor2<F>,
): <E, S>(f: (s: S) => Kind2<F, E, S>) => <A>(wa: Store<S, A>) => Kind2<F, E, A>



export declare function experiment<F extends URIS2, E>(
  F: Functor2C<F, E>,
): <S>(f: (s: S) => Kind2<F, E, S>) => <A>(wa: Store<S, A>) => Kind2<F, E, A>



export declare function experiment<F extends URIS>(
  F: Functor1<F>,
): <S>(f: (s: S) => Kind<F, S>) => <A>(wa: Store<S, A>) => Kind<F, A>



export declare function experiment<F>(
  F: FunctorHKT<F>,
): <S>(f: (s: S) => HKT<F, S>) => <A>(wa: Store<S, A>) => HKT<F, A>

Details​

  • Added in 0.1.0

License​

  • MIT – Copyright (c) 2017-present Giulio Canti

extend​

Signature​

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

Details​

  • Added in 0.1.0

License​

  • MIT – Copyright (c) 2017-present Giulio Canti

peeks​

Extract a value from a position which depends on the current position

Signature​

export declare function peeks<S>(f: Endomorphism<S>): <A>(wa: Store<S, A>) => A

Details​

  • Added in 0.1.0

License​

  • MIT – Copyright (c) 2017-present Giulio Canti

seek​

Reposition the focus at the specified position

Signature​

export declare function seek<S>(s: S): <A>(wa: Store<S, A>) => Store<S, A>

Details​

  • Added in 0.1.0

License​

  • MIT – Copyright (c) 2017-present Giulio Canti

seeks​

Reposition the focus at the specified position, which depends on the current position

Signature​

export declare function seeks<S>(f: Endomorphism<S>): <A>(wa: Store<S, A>) => Store<S, A>

Details​

  • Added in 0.1.0

License​

  • MIT – Copyright (c) 2017-present Giulio Canti

store​

This instance is deprecated, use small, specific instances instead. For example if a function needs a Comonad instance, pass S.Comonad instead of S.store (where S is from import S from 'fp-ts/Store')

Signature​

export declare const store: Comonad2<URI>

Details​

  • Added in 0.1.0
  • Deprecated

License​

  • MIT – Copyright (c) 2017-present Giulio Canti