OptionT

Lifting

fromPredicate

Pattern matching

match

Utilities

~~OptionM~~ (deprecated)
~~OptionM1~~ (deprecated)
~~OptionM2~~ (deprecated)
~~OptionM2C~~ (deprecated)
~~OptionT~~ (deprecated)
~~OptionT1~~ (deprecated)
~~OptionT2~~ (deprecated)
alt
ap
chain
chainNullableK
chainOptionK
fromEither
fromF
fromNullable
fromNullableK
fromOptionK
~~getOptionM~~ (deprecated)
getOrElse
map
matchE
some
zero

Lifting

`fromPredicate`

Signature

export declare function fromPredicate<F extends URIS4>(
  F: Pointed4<F>,
): {
  <A, B extends A>(refinement: Refinement<A, B>): <S, R, E>(a: A) => Kind4<F, S, R, E, Option<B>>
  <A>(predicate: Predicate<A>): <S, R, E, B extends A>(b: B) => Kind4<F, S, R, E, Option<B>>
  <A>(predicate: Predicate<A>): <S, R, E>(a: A) => Kind4<F, S, R, E, Option<A>>
}



export declare function fromPredicate<F extends URIS3>(
  F: Pointed3<F>,
): {
  <A, B extends A>(refinement: Refinement<A, B>): <R, E>(a: A) => Kind3<F, R, E, Option<B>>
  <A>(predicate: Predicate<A>): <R, E, B extends A>(b: B) => Kind3<F, R, E, Option<B>>
  <A>(predicate: Predicate<A>): <R, E>(a: A) => Kind3<F, R, E, Option<A>>
}



export declare function fromPredicate<F extends URIS3, E>(
  F: Pointed3C<F, E>,
): {
  <A, B extends A>(refinement: Refinement<A, B>): <R>(a: A) => Kind3<F, R, E, Option<B>>
  <A>(predicate: Predicate<A>): <R, B extends A>(b: B) => Kind3<F, R, E, Option<B>>
  <A>(predicate: Predicate<A>): <R>(a: A) => Kind3<F, R, E, Option<A>>
}



export declare function fromPredicate<F extends URIS2>(
  F: Pointed2<F>,
): {
  <A, B extends A>(refinement: Refinement<A, B>): <E>(a: A) => Kind2<F, E, Option<B>>
  <A>(predicate: Predicate<A>): <E, B extends A>(b: B) => Kind2<F, E, Option<B>>
  <A>(predicate: Predicate<A>): <E>(a: A) => Kind2<F, E, Option<A>>
}



export declare function fromPredicate<F extends URIS2, E>(
  F: Pointed2C<F, E>,
): {
  <A, B extends A>(refinement: Refinement<A, B>): (a: A) => Kind2<F, E, Option<B>>
  <A>(predicate: Predicate<A>): <B extends A>(b: B) => Kind2<F, E, Option<B>>
  <A>(predicate: Predicate<A>): (a: A) => Kind2<F, E, Option<A>>
}



export declare function fromPredicate<F extends URIS>(
  F: Pointed1<F>,
): {
  <A, B extends A>(refinement: Refinement<A, B>): (a: A) => Kind<F, Option<B>>
  <A>(predicate: Predicate<A>): <B extends A>(b: B) => Kind<F, Option<B>>
  <A>(predicate: Predicate<A>): (a: A) => Kind<F, Option<A>>
}



export declare function fromPredicate<F>(F: Pointed<F>): {
  <A, B extends A>(refinement: Refinement<A, B>): (a: A) => HKT<F, Option<B>>
  <A>(predicate: Predicate<A>): <B extends A>(b: B) => HKT<F, Option<B>>
  <A>(predicate: Predicate<A>): (a: A) => HKT<F, Option<A>>
}

Details

Added in 0.1.0

License

MIT – Copyright (c) 2017-present Giulio Canti

Pattern matching

`match`

Signature

export declare function match<F extends URIS4>(
  F: Functor4<F>,
): <B, A>(onNone: () => B, onSome: (a: A) => B) => <S, R, E>(ma: Kind4<F, S, R, E, Option<A>>) => Kind4<F, S, R, E, B>

export declare function match<F extends URIS3>(
  F: Functor3<F>,
): <B, A>(onNone: () => B, onSome: (a: A) => B) => <R, E>(ma: Kind3<F, R, E, Option<A>>) => Kind3<F, R, E, B>

export declare function match<F extends URIS3, E>(
  F: Functor3C<F, E>,
): <B, A>(onNone: () => B, onSome: (a: A) => B) => <R>(ma: Kind3<F, R, E, Option<A>>) => Kind3<F, R, E, B>

export declare function match<F extends URIS2>(
  F: Functor2<F>,
): <B, A>(onNone: () => B, onSome: (a: A) => B) => <E>(ma: Kind2<F, E, Option<A>>) => Kind2<F, E, B>

export declare function match<F extends URIS2, E>(
  F: Functor2C<F, E>,
): <B, A>(onNone: () => B, onSome: (a: A) => B) => (ma: Kind2<F, E, Option<A>>) => Kind2<F, E, B>

export declare function match<F extends URIS>(
  F: Functor1<F>,
): <B, A>(onNone: () => B, onSome: (a: A) => B) => (ma: Kind<F, Option<A>>) => Kind<F, B>

export declare function match<F>(
  F: Functor<F>,
): <B, A>(onNone: () => B, onSome: (a: A) => B) => (ma: HKT<F, Option<A>>) => HKT<F, B>

Details

Added in 0.1.0

License

MIT – Copyright (c) 2017-present Giulio Canti

Utilities

`OptionM`

Signature

export interface OptionM<M> extends ApplicativeCompositionHKT1<M, O.URI> {
  readonly alt: <A>(fa: OptionT<M, A>, that: LazyArg<OptionT<M, A>>) => OptionT<M, A>
  readonly chain: <A, B>(ma: OptionT<M, A>, f: (a: A) => OptionT<M, B>) => OptionT<M, B>
  readonly fold: <A, R>(ma: OptionT<M, A>, onNone: LazyArg<HKT<M, R>>, onSome: (a: A) => HKT<M, R>) => HKT<M, R>
  readonly fromM: <A>(ma: HKT<M, A>) => OptionT<M, A>
  readonly getOrElse: <A>(ma: OptionT<M, A>, onNone: LazyArg<HKT<M, A>>) => HKT<M, A>
  readonly none: <A = never>() => OptionT<M, A>
}

Details

Added in 0.1.0
Deprecated

License

MIT – Copyright (c) 2017-present Giulio Canti

`OptionM1`

Signature

export interface OptionM1<M extends URIS> extends ApplicativeComposition11<M, O.URI> {
  readonly alt: <A>(fa: OptionT1<M, A>, that: LazyArg<OptionT1<M, A>>) => OptionT1<M, A>
  readonly chain: <A, B>(ma: OptionT1<M, A>, f: (a: A) => OptionT1<M, B>) => OptionT1<M, B>
  readonly fold: <A, R>(ma: OptionT1<M, A>, onNone: LazyArg<Kind<M, R>>, onSome: (a: A) => Kind<M, R>) => Kind<M, R>
  readonly fromM: <A>(ma: Kind<M, A>) => OptionT1<M, A>
  readonly getOrElse: <A>(ma: OptionT1<M, A>, onNone: LazyArg<Kind<M, A>>) => Kind<M, A>
  readonly none: <A = never>() => OptionT1<M, A>
}

Details

Added in 0.1.0
Deprecated

License

MIT – Copyright (c) 2017-present Giulio Canti

`OptionM2`

Signature

export interface OptionM2<M extends URIS2> extends ApplicativeComposition21<M, O.URI> {
  readonly alt: <E, A>(fa: OptionT2<M, E, A>, that: LazyArg<OptionT2<M, E, A>>) => OptionT2<M, E, A>
  readonly chain: <E, A, B>(ma: OptionT2<M, E, A>, f: (a: A) => OptionT2<M, E, B>) => OptionT2<M, E, B>
  readonly fold: <E, A, R>(
    ma: OptionT2<M, E, A>,
    onNone: LazyArg<Kind2<M, E, R>>,
    onSome: (a: A) => Kind2<M, E, R>,
  ) => Kind2<M, E, R>
  readonly fromM: <E, A>(ma: Kind2<M, E, A>) => OptionT2<M, E, A>
  readonly getOrElse: <E, A>(ma: OptionT2<M, E, A>, onNone: LazyArg<Kind2<M, E, A>>) => Kind2<M, E, A>
  readonly none: <E = never, A = never>() => OptionT2<M, E, A>
}

Details

Added in 0.1.0
Deprecated

License

MIT – Copyright (c) 2017-present Giulio Canti

`OptionM2C`

Signature

export interface OptionM2C<M extends URIS2, E> extends ApplicativeComposition2C1<M, O.URI, E> {
  readonly alt: <A>(fa: OptionT2<M, E, A>, that: LazyArg<OptionT2<M, E, A>>) => OptionT2<M, E, A>
  readonly chain: <A, B>(ma: OptionT2<M, E, A>, f: (a: A) => OptionT2<M, E, B>) => OptionT2<M, E, B>
  readonly fold: <A, R>(
    ma: OptionT2<M, E, A>,
    onNone: LazyArg<Kind2<M, E, R>>,
    onSome: (a: A) => Kind2<M, E, R>,
  ) => Kind2<M, E, R>
  readonly fromM: <A>(ma: Kind2<M, E, A>) => OptionT2<M, E, A>
  readonly getOrElse: <A>(ma: OptionT2<M, E, A>, onNone: LazyArg<Kind2<M, E, A>>) => Kind2<M, E, A>
  readonly none: <A = never>() => OptionT2<M, E, A>
}

Details

Added in 0.1.0
Deprecated

License

MIT – Copyright (c) 2017-present Giulio Canti

`OptionT`

Signature

export interface OptionT<M, A> extends HKT<M, Option<A>> {}

Details

Added in 0.1.0
Deprecated

License

MIT – Copyright (c) 2017-present Giulio Canti

`OptionT1`

Signature

export type OptionT1<M extends URIS, A> = Kind<M, Option<A>>

Details

Added in 0.1.0
Deprecated

License

MIT – Copyright (c) 2017-present Giulio Canti

`OptionT2`

Signature

export type OptionT2<M extends URIS2, E, A> = Kind2<M, E, Option<A>>

Details

Added in 0.1.0
Deprecated

License

MIT – Copyright (c) 2017-present Giulio Canti

`alt`

Signature

export declare function alt<M extends URIS4>(
  M: Monad4<M>,
): <S, R, E, A>(
  second: LazyArg<Kind4<M, S, R, E, Option<A>>>,
) => (first: Kind4<M, S, R, E, Option<A>>) => Kind4<M, S, R, E, Option<A>>

export declare function alt<M extends URIS3>(
  M: Monad3<M>,
): <R, E, A>(
  second: LazyArg<Kind3<M, R, E, Option<A>>>,
) => (first: Kind3<M, R, E, Option<A>>) => Kind3<M, R, E, Option<A>>

export declare function alt<M extends URIS3, E>(
  M: Monad3C<M, E>,
): <R, A>(second: LazyArg<Kind3<M, R, E, Option<A>>>) => (first: Kind3<M, R, E, Option<A>>) => Kind3<M, R, E, Option<A>>

export declare function alt<M extends URIS2>(
  M: Monad2<M>,
): <E, A>(second: LazyArg<Kind2<M, E, Option<A>>>) => (first: Kind2<M, E, Option<A>>) => Kind2<M, E, Option<A>>

export declare function alt<M extends URIS2, E>(
  M: Monad2C<M, E>,
): <A>(second: LazyArg<Kind2<M, E, Option<A>>>) => (first: Kind2<M, E, Option<A>>) => Kind2<M, E, Option<A>>

export declare function alt<M extends URIS>(
  M: Monad1<M>,
): <A>(second: LazyArg<Kind<M, Option<A>>>) => (first: Kind<M, Option<A>>) => Kind<M, Option<A>>

export declare function alt<M>(
  M: Monad<M>,
): <A>(second: LazyArg<HKT<M, Option<A>>>) => (first: HKT<M, Option<A>>) => HKT<M, Option<A>>

Details

Added in 0.1.0

License

MIT – Copyright (c) 2017-present Giulio Canti

`ap`

Signature

export declare function ap<F extends URIS4>(
  F: Apply4<F>,
): <S, R, E, A>(
  fa: Kind4<F, S, R, E, Option<A>>,
) => <B>(fab: Kind4<F, S, R, E, Option<(a: A) => B>>) => Kind4<F, S, R, E, Option<B>>

export declare function ap<F extends URIS3>(
  F: Apply3<F>,
): <R, E, A>(
  fa: Kind3<F, R, E, Option<A>>,
) => <B>(fab: Kind3<F, R, E, Option<(a: A) => B>>) => Kind3<F, R, E, Option<B>>

export declare function ap<F extends URIS3, E>(
  F: Apply3C<F, E>,
): <R, A>(fa: Kind3<F, R, E, Option<A>>) => <B>(fab: Kind3<F, R, E, Option<(a: A) => B>>) => Kind3<F, R, E, Option<B>>

export declare function ap<F extends URIS2>(
  F: Apply2<F>,
): <E, A>(fa: Kind2<F, E, Option<A>>) => <B>(fab: Kind2<F, E, Option<(a: A) => B>>) => Kind2<F, E, Option<B>>

export declare function ap<F extends URIS2, E>(
  F: Apply2C<F, E>,
): <A>(fa: Kind2<F, E, Option<A>>) => <B>(fab: Kind2<F, E, Option<(a: A) => B>>) => Kind2<F, E, Option<B>>

export declare function ap<F extends URIS>(
  F: Apply1<F>,
): <A>(fa: Kind<F, Option<A>>) => <B>(fab: Kind<F, Option<(a: A) => B>>) => Kind<F, Option<B>>

export declare function ap<F>(
  F: Apply<F>,
): <A>(fa: HKT<F, Option<A>>) => <B>(fab: HKT<F, Option<(a: A) => B>>) => HKT<F, Option<B>>

Details

Added in 0.1.0

License

MIT – Copyright (c) 2017-present Giulio Canti

`chain`

Signature

export declare function chain<M extends URIS4>(
  M: Monad4<M>,
): <A, S, R, E, B>(
  f: (a: A) => Kind4<M, S, R, E, Option<B>>,
) => (ma: Kind4<M, S, R, E, Option<A>>) => Kind4<M, S, R, E, Option<B>>

export declare function chain<M extends URIS3>(
  M: Monad3<M>,
): <A, R, E, B>(f: (a: A) => Kind3<M, R, E, Option<B>>) => (ma: Kind3<M, R, E, Option<A>>) => Kind3<M, R, E, Option<B>>

export declare function chain<M extends URIS3, E>(
  M: Monad3C<M, E>,
): <A, R, B>(f: (a: A) => Kind3<M, R, E, Option<B>>) => (ma: Kind3<M, R, E, Option<A>>) => Kind3<M, R, E, Option<B>>

export declare function chain<M extends URIS2>(
  M: Monad2<M>,
): <A, E, B>(f: (a: A) => Kind2<M, E, Option<B>>) => (ma: Kind2<M, E, Option<A>>) => Kind2<M, E, Option<B>>

export declare function chain<M extends URIS2, E>(
  M: Monad2C<M, E>,
): <A, B>(f: (a: A) => Kind2<M, E, Option<B>>) => (ma: Kind2<M, E, Option<A>>) => Kind2<M, E, Option<B>>

export declare function chain<M extends URIS>(
  M: Monad1<M>,
): <A, B>(f: (a: A) => Kind<M, Option<B>>) => (ma: Kind<M, Option<A>>) => Kind<M, Option<B>>

export declare function chain<M>(
  M: Monad<M>,
): <A, B>(f: (a: A) => HKT<M, Option<B>>) => (ma: HKT<M, Option<A>>) => HKT<M, Option<B>>

Details

Added in 0.1.0

License

MIT – Copyright (c) 2017-present Giulio Canti

`chainNullableK`

Signature

export declare function chainNullableK<M extends URIS4>(
  M: Monad4<M>,
): <A, B>(
  f: (a: A) => B | null | undefined,
) => <S, R, E>(ma: Kind4<M, S, R, E, Option<A>>) => Kind4<M, S, R, E, Option<NonNullable<B>>>



export declare function chainNullableK<M extends URIS3>(
  M: Monad3<M>,
): <A, B>(
  f: (a: A) => B | null | undefined,
) => <R, E>(ma: Kind3<M, R, E, Option<A>>) => Kind3<M, R, E, Option<NonNullable<B>>>



export declare function chainNullableK<M extends URIS3, E>(
  M: Monad3C<M, E>,
): <A, B>(
  f: (a: A) => B | null | undefined,
) => <R>(ma: Kind3<M, R, E, Option<A>>) => Kind3<M, R, E, Option<NonNullable<B>>>



export declare function chainNullableK<M extends URIS2>(
  M: Monad2<M>,
): <A, B>(f: (a: A) => B | null | undefined) => <E>(ma: Kind2<M, E, Option<A>>) => Kind2<M, E, Option<NonNullable<B>>>



export declare function chainNullableK<M extends URIS2, E>(
  M: Monad2C<M, E>,
): <A, B>(f: (a: A) => B | null | undefined) => (ma: Kind2<M, E, Option<A>>) => Kind2<M, E, Option<NonNullable<B>>>



export declare function chainNullableK<M extends URIS>(
  M: Monad1<M>,
): <A, B>(f: (a: A) => B | null | undefined) => (ma: Kind<M, Option<A>>) => Kind<M, Option<NonNullable<B>>>



export declare function chainNullableK<M>(
  M: Monad<M>,
): <A, B>(f: (a: A) => B | null | undefined) => (ma: HKT<M, Option<A>>) => HKT<M, Option<NonNullable<B>>>

Details

Added in 0.1.0

License

MIT – Copyright (c) 2017-present Giulio Canti

`chainOptionK`

Signature

export declare function chainOptionK<M extends URIS4>(
  M: Monad4<M>,
): <A, B>(f: (a: A) => Option<B>) => <S, R, E>(ma: Kind4<M, S, R, E, Option<A>>) => Kind4<M, S, R, E, Option<B>>

export declare function chainOptionK<M extends URIS3>(
  M: Monad3<M>,
): <A, B>(f: (a: A) => Option<B>) => <R, E>(ma: Kind3<M, R, E, Option<A>>) => Kind3<M, R, E, Option<B>>

export declare function chainOptionK<M extends URIS3, E>(
  M: Monad3C<M, E>,
): <A, B>(f: (a: A) => Option<B>) => <R>(ma: Kind3<M, R, E, Option<A>>) => Kind3<M, R, E, Option<B>>

export declare function chainOptionK<M extends URIS2>(
  M: Monad2<M>,
): <A, B>(f: (a: A) => Option<B>) => <E>(ma: Kind2<M, E, Option<A>>) => Kind2<M, E, Option<B>>

export declare function chainOptionK<M extends URIS2, E>(
  M: Monad2C<M, E>,
): <A, B>(f: (a: A) => Option<B>) => (ma: Kind2<M, E, Option<A>>) => Kind2<M, E, Option<B>>

export declare function chainOptionK<M extends URIS>(
  M: Monad1<M>,
): <A, B>(f: (a: A) => Option<B>) => (ma: Kind<M, Option<A>>) => Kind<M, Option<B>>

export declare function chainOptionK<M>(
  M: Monad<M>,
): <A, B>(f: (a: A) => Option<B>) => (ma: HKT<M, Option<A>>) => HKT<M, Option<B>>

Details

Added in 0.1.0

License

MIT – Copyright (c) 2017-present Giulio Canti

`fromEither`

Signature

export declare function fromEither<F extends URIS4>(
  F: Pointed4<F>,
): <A, S, R, E>(e: Either<unknown, A>) => Kind4<F, S, R, E, Option<A>>

export declare function fromEither<F extends URIS3>(
  F: Pointed3<F>,
): <A, R, E>(e: Either<unknown, A>) => Kind3<F, R, E, Option<A>>

export declare function fromEither<F extends URIS3, E>(
  F: Pointed3C<F, E>,
): <A, R>(e: Either<unknown, A>) => Kind3<F, R, E, Option<A>>

export declare function fromEither<F extends URIS2>(
  F: Pointed2<F>,
): <A, E>(e: Either<unknown, A>) => Kind2<F, E, Option<A>>

export declare function fromEither<F extends URIS2, E>(
  F: Pointed2C<F, E>,
): <A>(e: Either<unknown, A>) => Kind2<F, E, Option<A>>

export declare function fromEither<F extends URIS2, E>(
  F: Pointed2C<F, E>,
): <A>(e: Either<unknown, A>) => Kind2<F, E, Option<A>>

export declare function fromEither<F extends URIS>(F: Pointed1<F>): <A>(e: Either<unknown, A>) => Kind<F, Option<A>>

export declare function fromEither<F>(F: Pointed<F>): <A>(e: Either<unknown, A>) => HKT<F, Option<A>>

Details

Added in 0.1.0

License

MIT – Copyright (c) 2017-present Giulio Canti

`fromF`

Signature

export declare function fromF<F extends URIS4>(
  F: Functor4<F>,
): <S, R, E, A>(ma: Kind4<F, S, R, E, A>) => Kind4<F, S, R, E, Option<A>>

export declare function fromF<F extends URIS3>(
  F: Functor3<F>,
): <R, E, A>(ma: Kind3<F, R, E, A>) => Kind3<F, R, E, Option<A>>

export declare function fromF<F extends URIS3, E>(
  F: Functor3C<F, E>,
): <R, A>(ma: Kind3<F, R, E, A>) => Kind3<F, R, E, Option<A>>

export declare function fromF<F extends URIS2>(F: Functor2<F>): <E, A>(ma: Kind2<F, E, A>) => Kind2<F, E, Option<A>>

export declare function fromF<F extends URIS2, E>(F: Functor2C<F, E>): <A>(ma: Kind2<F, E, A>) => Kind2<F, E, Option<A>>

export declare function fromF<F extends URIS>(F: Functor1<F>): <A>(ma: Kind<F, A>) => Kind<F, Option<A>>

export declare function fromF<F>(F: Functor<F>): <A>(ma: HKT<F, A>) => HKT<F, Option<A>>

Details

Added in 0.1.0

License

MIT – Copyright (c) 2017-present Giulio Canti

`fromNullable`

Signature

export declare function fromNullable<F extends URIS4>(
  F: Pointed4<F>,
): <A, S, R, E>(a: A) => Kind4<F, S, R, E, Option<NonNullable<A>>>

export declare function fromNullable<F extends URIS3>(
  F: Pointed3<F>,
): <A, R, E>(a: A) => Kind3<F, R, E, Option<NonNullable<A>>>

export declare function fromNullable<F extends URIS3, E>(
  F: Pointed3C<F, E>,
): <A, R>(a: A) => Kind3<F, R, E, Option<NonNullable<A>>>

export declare function fromNullable<F extends URIS2>(
  F: Pointed2<F>,
): <A, E>(a: A) => Kind2<F, E, Option<NonNullable<A>>>

export declare function fromNullable<F extends URIS2, E>(
  F: Pointed2C<F, E>,
): <A>(a: A) => Kind2<F, E, Option<NonNullable<A>>>

export declare function fromNullable<F extends URIS>(F: Pointed1<F>): <A>(a: A) => Kind<F, Option<NonNullable<A>>>

export declare function fromNullable<F>(F: Pointed<F>): <A>(a: A) => HKT<F, Option<NonNullable<A>>>

Details

Added in 0.1.0

License

MIT – Copyright (c) 2017-present Giulio Canti

`fromNullableK`

Signature

export declare function fromNullableK<F extends URIS4>(
  F: Pointed4<F>,
): <A extends ReadonlyArray<unknown>, B>(
  f: (...a: A) => B | null | undefined,
) => <S, R, E>(...a: A) => Kind4<F, S, R, E, Option<NonNullable<B>>>



export declare function fromNullableK<F extends URIS3>(
  F: Pointed3<F>,
): <A extends ReadonlyArray<unknown>, B>(
  f: (...a: A) => B | null | undefined,
) => <R, E>(...a: A) => Kind3<F, R, E, Option<NonNullable<B>>>



export declare function fromNullableK<F extends URIS3, E>(
  F: Pointed3C<F, E>,
): <A extends ReadonlyArray<unknown>, B>(
  f: (...a: A) => B | null | undefined,
) => <R>(...a: A) => Kind3<F, R, E, Option<NonNullable<B>>>



export declare function fromNullableK<F extends URIS2>(
  F: Pointed2<F>,
): <A extends ReadonlyArray<unknown>, B>(
  f: (...a: A) => B | null | undefined,
) => <E>(...a: A) => Kind2<F, E, Option<NonNullable<B>>>



export declare function fromNullableK<F extends URIS2, E>(
  F: Pointed2C<F, E>,
): <A extends ReadonlyArray<unknown>, B>(
  f: (...a: A) => B | null | undefined,
) => (...a: A) => Kind2<F, E, Option<NonNullable<B>>>



export declare function fromNullableK<F extends URIS>(
  F: Pointed1<F>,
): <A extends ReadonlyArray<unknown>, B>(
  f: (...a: A) => B | null | undefined,
) => (...a: A) => Kind<F, Option<NonNullable<B>>>



export declare function fromNullableK<F>(
  F: Pointed<F>,
): <A extends ReadonlyArray<unknown>, B>(
  f: (...a: A) => B | null | undefined,
) => (...a: A) => HKT<F, Option<NonNullable<B>>>

Details

Added in 0.1.0

License

`fromOptionK`

Signature

export declare function fromOptionK<F extends URIS4>(
  F: Pointed4<F>,
): <A extends ReadonlyArray<unknown>, B>(
  f: (...a: A) => Option<B>,
) => <S, R, E>(...a: A) => Kind4<F, S, R, E, Option<B>>

export declare function fromOptionK<F extends URIS3>(
  F: Pointed3<F>,
): <A extends ReadonlyArray<unknown>, B>(f: (...a: A) => Option<B>) => <R, E>(...a: A) => Kind3<F, R, E, Option<B>>

export declare function fromOptionK<F extends URIS3, E>(
  F: Pointed3C<F, E>,
): <A extends ReadonlyArray<unknown>, B>(f: (...a: A) => Option<B>) => <R>(...a: A) => Kind3<F, R, E, Option<B>>

export declare function fromOptionK<F extends URIS2>(
  F: Pointed2<F>,
): <A extends ReadonlyArray<unknown>, B>(f: (...a: A) => Option<B>) => <E>(...a: A) => Kind2<F, E, Option<B>>

export declare function fromOptionK<F extends URIS2, E>(
  F: Pointed2C<F, E>,
): <A extends ReadonlyArray<unknown>, B>(f: (...a: A) => Option<B>) => (...a: A) => Kind2<F, E, Option<B>>

export declare function fromOptionK<F extends URIS>(
  F: Pointed1<F>,
): <A extends ReadonlyArray<unknown>, B>(f: (...a: A) => Option<B>) => (...a: A) => Kind<F, Option<B>>

export declare function fromOptionK<F>(
  F: Pointed<F>,
): <A extends ReadonlyArray<unknown>, B>(f: (...a: A) => Option<B>) => (...a: A) => HKT<F, Option<B>>

Details

Added in 0.1.0

License

`getOptionM`

Signature

export declare function getOptionM<M extends URIS2>(M: Monad2<M>): OptionM2<M>

export declare function getOptionM<M extends URIS2, E>(M: Monad2C<M, E>): OptionM2C<M, E>

export declare function getOptionM<M extends URIS>(M: Monad1<M>): OptionM1<M>

export declare function getOptionM<M>(M: Monad<M>): OptionM<M>

Details

Added in 0.1.0
Deprecated

License

`getOrElse`

Signature

export declare function getOrElse<M extends URIS4>(
  M: Monad4<M>,
): <S, R, E, A>(onNone: LazyArg<Kind4<M, S, R, E, A>>) => (fa: Kind4<M, S, R, E, Option<A>>) => Kind4<M, S, R, E, A>

export declare function getOrElse<M extends URIS3>(
  M: Monad3<M>,
): <R, E, A>(onNone: LazyArg<Kind3<M, R, E, A>>) => (fa: Kind3<M, R, E, Option<A>>) => Kind3<M, R, E, A>

export declare function getOrElse<M extends URIS3, E>(
  M: Monad3C<M, E>,
): <R, A>(onNone: LazyArg<Kind3<M, R, E, A>>) => (fa: Kind3<M, R, E, Option<A>>) => Kind3<M, R, E, A>

export declare function getOrElse<M extends URIS2>(
  M: Monad2<M>,
): <E, A>(onNone: LazyArg<Kind2<M, E, A>>) => (fa: Kind2<M, E, Option<A>>) => Kind2<M, E, A>

export declare function getOrElse<M extends URIS2, E>(
  M: Monad2C<M, E>,
): <A>(onNone: LazyArg<Kind2<M, E, A>>) => (fa: Kind2<M, E, Option<A>>) => Kind2<M, E, A>

export declare function getOrElse<M extends URIS>(
  M: Monad1<M>,
): <A>(onNone: LazyArg<Kind<M, A>>) => (fa: Kind<M, Option<A>>) => Kind<M, A>

export declare function getOrElse<M>(
  M: Monad<M>,
): <A>(onNone: LazyArg<HKT<M, A>>) => (fa: HKT<M, Option<A>>) => HKT<M, A>

Details

Added in 0.1.0

License

`map`

Signature

export declare function map<F extends URIS4>(
  F: Functor4<F>,
): <A, B>(f: (a: A) => B) => <S, R, E>(fa: Kind4<F, S, R, E, Option<A>>) => Kind4<F, S, R, E, Option<B>>

export declare function map<F extends URIS3>(
  F: Functor3<F>,
): <A, B>(f: (a: A) => B) => <R, E>(fa: Kind3<F, R, E, Option<A>>) => Kind3<F, R, E, Option<B>>

export declare function map<F extends URIS3, E>(
  F: Functor3C<F, E>,
): <A, B>(f: (a: A) => B) => <R>(fa: Kind3<F, R, E, Option<A>>) => Kind3<F, R, E, Option<B>>

export declare function map<F extends URIS2>(
  F: Functor2<F>,
): <A, B>(f: (a: A) => B) => <E>(fa: Kind2<F, E, Option<A>>) => Kind2<F, E, Option<B>>

export declare function map<F extends URIS2, E>(
  F: Functor2C<F, E>,
): <A, B>(f: (a: A) => B) => (fa: Kind2<F, E, Option<A>>) => Kind2<F, E, Option<B>>

export declare function map<F extends URIS>(
  F: Functor1<F>,
): <A, B>(f: (a: A) => B) => (fa: Kind<F, Option<A>>) => Kind<F, Option<B>>

export declare function map<F>(F: Functor<F>): <A, B>(f: (a: A) => B) => (fa: HKT<F, Option<A>>) => HKT<F, Option<B>>

Details

Added in 0.1.0

License

`matchE`

Signature

export declare function matchE<M extends URIS4>(
  M: Chain4<M>,
): <S, R, E, B, A>(
  onNone: () => Kind4<M, S, R, E, B>,
  onSome: (a: A) => Kind4<M, S, R, E, B>,
) => (ma: Kind4<M, S, R, E, Option<A>>) => Kind4<M, S, R, E, B>



export declare function matchE<M extends URIS3>(
  M: Chain3<M>,
): <R, E, B, A>(
  onNone: () => Kind3<M, R, E, B>,
  onSome: (a: A) => Kind3<M, R, E, B>,
) => (ma: Kind3<M, R, E, Option<A>>) => Kind3<M, R, E, B>



export declare function matchE<M extends URIS3, E>(
  M: Chain3C<M, E>,
): <R, B, A>(
  onNone: () => Kind3<M, R, E, B>,
  onSome: (a: A) => Kind3<M, R, E, B>,
) => (ma: Kind3<M, R, E, Option<A>>) => Kind3<M, R, E, B>



export declare function matchE<M extends URIS2>(
  M: Chain2<M>,
): <E, B, A>(
  onNone: () => Kind2<M, E, B>,
  onSome: (a: A) => Kind2<M, E, B>,
) => (ma: Kind2<M, E, Option<A>>) => Kind2<M, E, B>



export declare function matchE<M extends URIS2, E>(
  M: Chain2C<M, E>,
): <B, A>(
  onNone: () => Kind2<M, E, B>,
  onSome: (a: A) => Kind2<M, E, B>,
) => (ma: Kind2<M, E, Option<A>>) => Kind2<M, E, B>



export declare function matchE<M extends URIS>(
  M: Chain1<M>,
): <B, A>(onNone: () => Kind<M, B>, onSome: (a: A) => Kind<M, B>) => (ma: Kind<M, Option<A>>) => Kind<M, B>



export declare function matchE<M>(
  M: Chain<M>,
): <B, A>(onNone: () => HKT<M, B>, onSome: (a: A) => HKT<M, B>) => (ma: HKT<M, Option<A>>) => HKT<M, B>

Details

Added in 0.1.0

License

`some`

Signature

export declare function some<F extends URIS4>(F: Pointed4<F>): <A, S, R, E>(a: A) => Kind4<F, S, R, E, Option<A>>

export declare function some<F extends URIS3>(F: Pointed3<F>): <A, R, E>(a: A) => Kind3<F, R, E, Option<A>>

export declare function some<F extends URIS3, E>(F: Pointed3C<F, E>): <A, R>(a: A) => Kind3<F, R, E, Option<A>>

export declare function some<F extends URIS2>(F: Pointed2<F>): <A, E>(a: A) => Kind2<F, E, Option<A>>

export declare function some<F extends URIS2, E>(F: Pointed2C<F, E>): <A>(a: A) => Kind2<F, E, Option<A>>

export declare function some<F extends URIS>(F: Pointed1<F>): <A>(a: A) => Kind<F, Option<A>>

export declare function some<F>(F: Pointed<F>): <A>(a: A) => HKT<F, Option<A>>

Details

Added in 0.1.0

License

`zero`

Signature

export declare function zero<F extends URIS4>(F: Pointed4<F>): <S, R, E, A>() => Kind4<F, S, R, E, Option<A>>

export declare function zero<F extends URIS3>(F: Pointed3<F>): <R, E, A>() => Kind3<F, R, E, Option<A>>

export declare function zero<F extends URIS3, E>(F: Pointed3C<F, E>): <R, A>() => Kind3<F, R, E, Option<A>>

export declare function zero<F extends URIS2>(F: Pointed2<F>): <E, A>() => Kind2<F, E, Option<A>>

export declare function zero<F extends URIS2, E>(F: Pointed2C<F, E>): <A>() => Kind2<F, E, Option<A>>

export declare function zero<F extends URIS>(F: Pointed1<F>): <A>() => Kind<F, Option<A>>

export declare function zero<F>(F: Pointed<F>): <A>() => HKT<F, Option<A>>

Details

Added in 0.1.0

OptionT

Lifting​

Pattern matching​

Utilities​

Lifting​

fromPredicate​

Signature​

Details​

License​

Pattern matching​

match​

Signature​

Details​

License​

Utilities​

OptionM​

Signature​

Details​

License​

OptionM1​

Signature​

Details​

License​

OptionM2​

Signature​

Details​

License​

OptionM2C​

Signature​

Details​

License​

OptionT​

Signature​

Details​

License​

OptionT1​

Signature​

Details​

License​

OptionT2​

Signature​

Details​

License​

alt​

Signature​

Details​

License​

ap​

Signature​

Details​

License​

chain​

Signature​

Details​

License​

chainNullableK​

Signature​

Details​

License​

chainOptionK​

Signature​

Details​

License​

fromEither​

Signature​

Details​

License​

fromF​

Signature​

Details​

License​

fromNullable​

Signature​

Details​

License​

fromNullableK​

Signature​

Details​

License​

fromOptionK​

Lifting

Pattern matching

Utilities

Lifting

`fromPredicate`

Signature

Details

License

Pattern matching

`match`

Signature

Details

License

Utilities

`OptionM`

Signature

Details

License

`OptionM1`

Signature

Details

License

`OptionM2`

Signature

Details

License

`OptionM2C`

Signature

Details

License

`OptionT`

Signature

Details

License

`OptionT1`

Signature

Details

License

`OptionT2`

Signature

Details

License

`alt`

Signature

Details

License

`ap`

Signature

Details

License

`chain`

Signature

Details

License

`chainNullableK`

Signature

Details

License

`chainOptionK`

Signature

Details

License

`fromEither`

Signature

Details

License

`fromF`

Signature

Details

License

`fromNullable`

Signature

Details

License

`fromNullableK`

Signature

Details

License

`fromOptionK`

Signature