fp-ts/lib/Record.d.ts

Functional programming in TypeScript

/**
 * @since 2.0.0
 */
import { Applicative, Applicative1, Applicative2, Applicative2C, Applicative3, Applicative3C } from './Applicative'
import { Compactable1, Separated } from './Compactable'
import { Either } from './Either'
import { Eq } from './Eq'
import { Filterable1 } from './Filterable'
import { FilterableWithIndex1, PredicateWithIndex, RefinementWithIndex } from './FilterableWithIndex'
import { Foldable as FoldableHKT, Foldable1, Foldable2, Foldable3 } from './Foldable'
import { FoldableWithIndex1 } from './FoldableWithIndex'
import { Predicate, Refinement } from './function'
import { Functor1 } from './Functor'
import { FunctorWithIndex1 } from './FunctorWithIndex'
import { HKT, Kind, Kind2, Kind3, URIS, URIS2, URIS3 } from './HKT'
import { Magma } from './Magma'
import { Monoid } from './Monoid'
import { Option } from './Option'
import { Semigroup } from './Semigroup'
import { Show } from './Show'
import { Traversable1 } from './Traversable'
import { TraversableWithIndex1 } from './TraversableWithIndex'
import { Unfoldable, Unfoldable1 } from './Unfoldable'
import { PipeableWilt1, PipeableWither1, Witherable1 } from './Witherable'
/**
 * @since 2.0.0
 */
export declare const getShow: <A>(S: Show<A>) => Show<Record<string, A>>
/**
 * Calculate the number of key/value pairs in a record
 *
 * @since 2.0.0
 */
export declare const size: (r: Record<string, unknown>) => number
/**
 * Test whether a record is empty
 *
 * @since 2.0.0
 */
export declare const isEmpty: (r: Record<string, unknown>) => boolean
/**
 * @since 2.0.0
 */
export declare const keys: <K extends string>(r: Record<K, unknown>) => Array<K>
/**
 * Map a record into an array
 *
 * @example
 * import {collect} from 'fp-ts/Record'
 *
 * const x: { a: string, b: boolean } = { a: 'foo', b: false }
 * assert.deepStrictEqual(
 *   collect((key, val) => ({key: key, value: val}))(x),
 *   [{key: 'a', value: 'foo'}, {key: 'b', value: false}]
 * )
 *
 * @since 2.0.0
 */
export declare const collect: <K extends string, A, B>(f: (k: K, a: A) => B) => (r: Record<K, A>) => Array<B>
/**
 * @since 2.0.0
 */
export declare const toArray: <K extends string, A>(r: Record<K, A>) => Array<[K, A]>
/**
 * Unfolds a record into a list of key/value pairs
 *
 * @since 2.0.0
 */
export declare function toUnfoldable<F extends URIS>(
  U: Unfoldable1<F>
): <K extends string, A>(r: Record<K, A>) => Kind<F, [K, A]>
export declare function toUnfoldable<F>(U: Unfoldable<F>): <K extends string, A>(r: Record<K, A>) => HKT<F, [K, A]>
/**
 * Insert or replace a key/value pair in a record
 *
 * @since 2.0.0
 */
export declare function insertAt<K extends string, A>(
  k: K,
  a: A
): <KS extends string>(r: Record<KS, A>) => Record<KS | K, A>
/**
 * @since 2.0.0
 */
export declare const hasOwnProperty: <K extends string>(k: string, r: Record<K, unknown>) => k is K
/**
 * Delete a key and value from a map
 *
 * @since 2.0.0
 */
export declare function deleteAt<K extends string>(
  k: K
): <KS extends string, A>(r: Record<KS, A>) => Record<string extends K ? string : Exclude<KS, K>, A>
/**
 * @since 2.0.0
 */
export declare const updateAt: <A>(k: string, a: A) => <K extends string>(r: Record<K, A>) => Option<Record<K, A>>
/**
 * @since 2.0.0
 */
export declare const modifyAt: <A>(
  k: string,
  f: (a: A) => A
) => <K extends string>(r: Record<K, A>) => Option<Record<K, A>>
/**
 * Delete a key and value from a map, returning the value as well as the subsequent map
 *
 * @since 2.0.0
 */
export declare function pop<K extends string>(
  k: K
): <KS extends string, A>(r: Record<KS, A>) => Option<[A, Record<string extends K ? string : Exclude<KS, K>, A>]>
/**
 * Test whether one record contains all of the keys and values contained in another record
 *
 * @since 2.0.0
 */
export declare const isSubrecord: <A>(
  E: Eq<A>
) => {
  (that: Record<string, A>): (me: Record<string, A>) => boolean
  (me: Record<string, A>, that: Record<string, A>): boolean
}
/**
 * @since 2.0.0
 */
export declare function getEq<K extends string, A>(E: Eq<A>): Eq<Record<K, A>>
/**
 * Returns a `Monoid` instance for records given a `Semigroup` instance for their values
 *
 * @example
 * import { semigroupSum } from 'fp-ts/Semigroup'
 * import { getMonoid } from 'fp-ts/Record'
 *
 * const M = getMonoid(semigroupSum)
 * assert.deepStrictEqual(M.concat({ foo: 123 }, { foo: 456 }), { foo: 579 })
 *
 * @since 2.0.0
 */
export declare function getMonoid<K extends string, A>(S: Semigroup<A>): Monoid<Record<K, A>>
/**
 * Lookup the value for a key in a record
 *
 * @since 2.0.0
 */
export declare const lookup: {
  (k: string): <A>(r: Record<string, A>) => Option<A>
  <A>(k: string, r: Record<string, A>): Option<A>
}
/**
 * @since 2.0.0
 */
export declare const empty: Record<string, never>
/**
 * Map a record passing the keys to the iterating function
 *
 * @since 2.0.0
 */
export declare function mapWithIndex<K extends string, A, B>(f: (k: K, a: A) => B): (fa: Record<K, A>) => Record<K, B>
/**
 * Map a record passing the values to the iterating function
 *
 * @since 2.0.0
 */
export declare function map<A, B>(f: (a: A) => B): <K extends string>(fa: Record<K, A>) => Record<K, B>
/**
 * @since 2.0.0
 */
export declare function reduceWithIndex<K extends string, A, B>(
  b: B,
  f: (k: K, b: B, a: A) => B
): (fa: Record<K, A>) => B
/**
 * @since 2.0.0
 */
export declare function foldMapWithIndex<M>(
  M: Monoid<M>
): <K extends string, A>(f: (k: K, a: A) => M) => (fa: Record<K, A>) => M
/**
 * @since 2.0.0
 */
export declare function reduceRightWithIndex<K extends string, A, B>(
  b: B,
  f: (k: K, a: A, b: B) => B
): (fa: Record<K, A>) => B
/**
 * Create a record with one key/value pair
 *
 * @since 2.0.0
 */
export declare const singleton: <K extends string, A>(k: K, a: A) => Record<K, A>
/**
 * @since 2.0.0
 */
export declare function traverseWithIndex<F extends URIS3>(
  F: Applicative3<F>
): <K extends string, R, E, A, B>(
  f: (k: K, a: A) => Kind3<F, R, E, B>
) => (ta: Record<K, A>) => Kind3<F, R, E, Record<K, B>>
export declare function traverseWithIndex<F extends URIS3, E>(
  F: Applicative3C<F, E>
): <K extends string, R, A, B>(
  f: (k: K, a: A) => Kind3<F, R, E, B>
) => (ta: Record<K, A>) => Kind3<F, R, E, Record<K, B>>
export declare function traverseWithIndex<F extends URIS2>(
  F: Applicative2<F>
): <K extends string, E, A, B>(f: (k: K, a: A) => Kind2<F, E, B>) => (ta: Record<K, A>) => Kind2<F, E, Record<K, B>>
export declare function traverseWithIndex<F extends URIS2, E>(
  F: Applicative2C<F, E>
): <K extends string, A, B>(f: (k: K, a: A) => Kind2<F, E, B>) => (ta: Record<K, A>) => Kind2<F, E, Record<K, B>>
export declare function traverseWithIndex<F extends URIS>(
  F: Applicative1<F>
): <K extends string, A, B>(f: (k: K, a: A) => Kind<F, B>) => (ta: Record<K, A>) => Kind<F, Record<K, B>>
export declare function traverseWithIndex<F>(
  F: Applicative<F>
): <K extends string, A, B>(f: (k: K, a: A) => HKT<F, B>) => (ta: Record<K, A>) => HKT<F, Record<K, B>>
/**
 * @since 2.0.0
 */
export declare function traverse<F extends URIS3>(
  F: Applicative3<F>
): <R, E, A, B>(f: (a: A) => Kind3<F, R, E, B>) => <K extends string>(ta: Record<K, A>) => Kind3<F, R, E, Record<K, B>>
export declare function traverse<F extends URIS3, E>(
  F: Applicative3C<F, E>
): <R, A, B>(f: (a: A) => Kind3<F, R, E, B>) => <K extends string>(ta: Record<K, A>) => Kind3<F, R, E, Record<K, B>>
export declare function traverse<F extends URIS2>(
  F: Applicative2<F>
): <E, A, B>(f: (a: A) => Kind2<F, E, B>) => <K extends string>(ta: Record<K, A>) => Kind2<F, E, Record<K, B>>
export declare function traverse<F extends URIS2, E>(
  F: Applicative2C<F, E>
): <A, B>(f: (a: A) => Kind2<F, E, B>) => <K extends string>(ta: Record<K, A>) => Kind2<F, E, Record<K, B>>
export declare function traverse<F extends URIS>(
  F: Applicative1<F>
): <A, B>(f: (a: A) => Kind<F, B>) => <K extends string>(ta: Record<K, A>) => Kind<F, Record<K, B>>
export declare function traverse<F>(
  F: Applicative<F>
): <A, B>(f: (a: A) => HKT<F, B>) => <K extends string>(ta: Record<K, A>) => HKT<F, Record<K, B>>
/**
 * @since 2.0.0
 */
export declare function sequence<F extends URIS3>(
  F: Applicative3<F>
): <K extends string, R, E, A>(ta: Record<K, Kind3<F, R, E, A>>) => Kind3<F, R, E, Record<K, A>>
export declare function sequence<F extends URIS3, E>(
  F: Applicative3C<F, E>
): <K extends string, R, A>(ta: Record<K, Kind3<F, R, E, A>>) => Kind3<F, R, E, Record<K, A>>
export declare function sequence<F extends URIS2>(
  F: Applicative2<F>
): <K extends string, E, A>(ta: Record<K, Kind2<F, E, A>>) => Kind2<F, E, Record<K, A>>
export declare function sequence<F extends URIS2, E>(
  F: Applicative2C<F, E>
): <K extends string, A>(ta: Record<K, Kind2<F, E, A>>) => Kind2<F, E, Record<K, A>>
export declare function sequence<F extends URIS>(
  F: Applicative1<F>
): <K extends string, A>(ta: Record<K, Kind<F, A>>) => Kind<F, Record<K, A>>
export declare function sequence<F>(
  F: Applicative<F>
): <K extends string, A>(ta: Record<K, HKT<F, A>>) => HKT<F, Record<K, A>>
/**
 * @category Witherable
 * @since 2.6.5
 */
export declare const wither: PipeableWither1<URI>
/**
 * @category Witherable
 * @since 2.6.5
 */
export declare const wilt: PipeableWilt1<URI>
/**
 * @since 2.0.0
 */
export declare function partitionMapWithIndex<K extends string, A, B, C>(
  f: (key: K, a: A) => Either<B, C>
): (fa: Record<K, A>) => Separated<Record<string, B>, Record<string, C>>
/**
 * @since 2.0.0
 */
export declare function partitionWithIndex<K extends string, A, B extends A>(
  refinementWithIndex: RefinementWithIndex<K, A, B>
): (fa: Record<K, A>) => Separated<Record<string, A>, Record<string, B>>
export declare function partitionWithIndex<K extends string, A>(
  predicateWithIndex: PredicateWithIndex<K, A>
): (fa: Record<K, A>) => Separated<Record<string, A>, Record<string, A>>
/**
 * @since 2.0.0
 */
export declare function filterMapWithIndex<K extends string, A, B>(
  f: (key: K, a: A) => Option<B>
): (fa: Record<K, A>) => Record<string, B>
/**
 * @since 2.0.0
 */
export declare function filterWithIndex<K extends string, A, B extends A>(
  refinementWithIndex: RefinementWithIndex<K, A, B>
): (fa: Record<K, A>) => Record<string, B>
export declare function filterWithIndex<K extends string, A>(
  predicateWithIndex: PredicateWithIndex<K, A>
): (fa: Record<K, A>) => Record<string, A>
/**
 * Create a record from a foldable collection of key/value pairs, using the
 * specified `Magma` to combine values for duplicate keys.
 *
 * @since 2.0.0
 */
export declare function fromFoldable<F extends URIS3, A>(
  M: Magma<A>,
  F: Foldable3<F>
): <K extends string, R, E>(fka: Kind3<F, R, E, [K, A]>) => Record<K, A>
export declare function fromFoldable<F extends URIS2, A>(
  M: Magma<A>,
  F: Foldable2<F>
): <K extends string, E>(fka: Kind2<F, E, [K, A]>) => Record<K, A>
export declare function fromFoldable<F extends URIS, A>(
  M: Magma<A>,
  F: Foldable1<F>
): <K extends string>(fka: Kind<F, [K, A]>) => Record<K, A>
export declare function fromFoldable<F, A>(
  M: Magma<A>,
  F: FoldableHKT<F>
): <K extends string>(fka: HKT<F, [K, A]>) => Record<K, A>
/**
 * Create a record from a foldable collection using the specified functions to
 *
 * - map to key/value pairs
 * - combine values for duplicate keys.
 *
 * @example
 * import { getLastSemigroup } from 'fp-ts/Semigroup'
 * import { array, zip } from 'fp-ts/Array'
 * import { identity } from 'fp-ts/function'
 * import { fromFoldableMap } from 'fp-ts/Record'
 *
 * // like lodash `zipObject` or ramda `zipObj`
 * export const zipObject = <K extends string, A>(keys: Array<K>, values: Array<A>): Record<K, A> =>
 *   fromFoldableMap(getLastSemigroup<A>(), array)(zip(keys, values), identity)
 *
 * assert.deepStrictEqual(zipObject(['a', 'b'], [1, 2, 3]), { a: 1, b: 2 })
 *
 * // build a record from a field
 * interface User {
 *   id: string
 *   name: string
 * }
 *
 * const users: Array<User> = [
 *   { id: 'id1', name: 'name1' },
 *   { id: 'id2', name: 'name2' },
 *   { id: 'id1', name: 'name3' }
 * ]
 *
 * assert.deepStrictEqual(fromFoldableMap(getLastSemigroup<User>(), array)(users, user => [user.id, user]), {
 *   id1: { id: 'id1', name: 'name3' },
 *   id2: { id: 'id2', name: 'name2' }
 * })
 *
 * @since 2.0.0
 */
export declare function fromFoldableMap<F extends URIS3, B>(
  M: Magma<B>,
  F: Foldable3<F>
): <R, E, A, K extends string>(fa: Kind3<F, R, E, A>, f: (a: A) => [K, B]) => Record<K, B>
export declare function fromFoldableMap<F extends URIS2, B>(
  M: Magma<B>,
  F: Foldable2<F>
): <E, A, K extends string>(fa: Kind2<F, E, A>, f: (a: A) => [K, B]) => Record<K, B>
export declare function fromFoldableMap<F extends URIS, B>(
  M: Magma<B>,
  F: Foldable1<F>
): <A, K extends string>(fa: Kind<F, A>, f: (a: A) => [K, B]) => Record<K, B>
export declare function fromFoldableMap<F, B>(
  M: Magma<B>,
  F: FoldableHKT<F>
): <A, K extends string>(fa: HKT<F, A>, f: (a: A) => [K, B]) => Record<K, B>
/**
 * @since 2.0.0
 */
export declare const every: <A>(predicate: Predicate<A>) => (r: Record<string, A>) => boolean
/**
 * @since 2.0.0
 */
export declare const some: <A>(predicate: (a: A) => boolean) => (r: Record<string, A>) => boolean
/**
 * @since 2.0.0
 */
export declare const elem: <A>(
  E: Eq<A>
) => {
  (a: A): (fa: Record<string, A>) => boolean
  (a: A, fa: Record<string, A>): boolean
}
/**
 * @category Filterable
 * @since 2.0.0
 */
export declare const filter: {
  <A, B extends A>(refinement: Refinement<A, B>): (fa: Record<string, A>) => Record<string, B>
  <A>(predicate: Predicate<A>): (fa: Record<string, A>) => Record<string, A>
}
/**
 * @category Filterable
 * @since 2.0.0
 */
export declare const filterMap: <A, B>(f: (a: A) => Option<B>) => (fa: Record<string, A>) => Record<string, B>
/**
 * @category Foldable
 * @since 2.0.0
 */
export declare const foldMap: <M>(M: Monoid<M>) => <A>(f: (a: A) => M) => (fa: Record<string, A>) => M
/**
 * @category Filterable
 * @since 2.0.0
 */
export declare const partition: {
  <A, B extends A>(refinement: Refinement<A, B>): (
    fa: Record<string, A>
  ) => Separated<Record<string, A>, Record<string, B>>
  <A>(predicate: Predicate<A>): (fa: Record<string, A>) => Separated<Record<string, A>, Record<string, A>>
}
/**
 * @category Filterable
 * @since 2.0.0
 */
export declare const partitionMap: <A, B, C>(
  f: (a: A) => Either<B, C>
) => (fa: Record<string, A>) => Separated<Record<string, B>, Record<string, C>>
/**
 * @category Foldable
 * @since 2.0.0
 */
export declare const reduce: <A, B>(b: B, f: (b: B, a: A) => B) => (fa: Record<string, A>) => B
/**
 * @category Foldable
 * @since 2.0.0
 */
export declare const reduceRight: <A, B>(b: B, f: (a: A, b: B) => B) => (fa: Record<string, A>) => B
/**
 * @category Compactable
 * @since 2.0.0
 */
export declare const compact: <A>(fa: Record<string, Option<A>>) => Record<string, A>
/**
 * @category Compactable
 * @since 2.0.0
 */
export declare const separate: <A, B>(
  fa: Record<string, Either<A, B>>
) => Separated<Record<string, A>, Record<string, B>>
/**
 * @category instances
 * @since 2.0.0
 */
export declare const URI = 'Record'
/**
 * @category instances
 * @since 2.0.0
 */
export declare type URI = typeof URI
declare module './HKT' {
  interface URItoKind<A> {
    readonly [URI]: Record<string, A>
  }
}
/**
 * @category instances
 * @since 2.7.0
 */
export declare const Functor: Functor1<URI>
/**
 * @category instances
 * @since 2.7.0
 */
export declare const FunctorWithIndex: FunctorWithIndex1<URI, string>
/**
 * @category instances
 * @since 2.7.0
 */
export declare const Foldable: Foldable1<URI>
/**
 * @category instances
 * @since 2.7.0
 */
export declare const FoldableWithIndex: FoldableWithIndex1<URI, string>
/**
 * @category instances
 * @since 2.7.0
 */
export declare const Compactable: Compactable1<URI>
/**
 * @category instances
 * @since 2.7.0
 */
export declare const Filterable: Filterable1<URI>
/**
 * @category instances
 * @since 2.7.0
 */
export declare const FilterableWithIndex: FilterableWithIndex1<URI, string>
/**
 * @category instances
 * @since 2.7.0
 */
export declare const Traversable: Traversable1<URI>
/**
 * @category instances
 * @since 2.7.0
 */
export declare const TraversableWithIndex: TraversableWithIndex1<URI, string>
/**
 * @category instances
 * @since 2.7.0
 */
export declare const Witherable: Witherable1<URI>
/**
 * @category instances
 * @since 2.0.0
 */
export declare const record: FunctorWithIndex1<URI, string> &
  FoldableWithIndex1<URI, string> &
  FilterableWithIndex1<URI, string> &
  TraversableWithIndex1<URI, string> &
  Witherable1<URI>