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Variable: toMultiple()

const toMultiple: {<Value, Reducers>(reducers): Reducer<Value, { -readonly [Key in string | number | symbol]: Reducers[Key] extends RawReducerWithoutFinish<Value, Acc> ? Acc : never }, { -readonly [Key in string | number | symbol]: Reducers[Key] extends RawReducerWithFinish<Value, any, Finished> ? Finished : Reducers[Key] extends RawReducerWithoutFinish<Value, Acc> ? Acc : never }>; <Value, Reducers>(reducers): OptionalReducer<Value, { -readonly [Key in string | number | symbol]: Reducers[Key] extends RawReducerWithFinish<Value, any, Finished> ? Finished : Reducers[Key] extends RawOptionalReducerWithFinish<Value, Finished> ? Finished : Value }>; }

Defined in: collections.d.ts:319

Returns a Reducer or OptionalReducer that reduces values to an object or array of the same shape as reducers using all of the reducers in reducers.

Returns an OptionalReducer if at least one of the input reducers is an OptionalReducer. Otherwise, returns a Reducer.

Call Signature​

<Value, Reducers>(reducers): Reducer<Value, { -readonly [Key in string | number | symbol]: Reducers[Key] extends RawReducerWithoutFinish<Value, Acc> ? Acc : never }, { -readonly [Key in string | number | symbol]: Reducers[Key] extends RawReducerWithFinish<Value, any, Finished> ? Finished : Reducers[Key] extends RawReducerWithoutFinish<Value, Acc> ? Acc : never }>

Type Parameters​

Value​

Value

Reducers​

Reducers extends readonly [RawReducerWithoutFinish<Value, any>] | readonly RawReducerWithoutFinish<Value, any>[] | Readonly<Record<PropertyKey, RawReducerWithoutFinish<Value, any>>>

Parameters​

reducers​

Reducers

Returns​

Reducer<Value, { -readonly [Key in string | number | symbol]: Reducers[Key] extends RawReducerWithoutFinish<Value, Acc> ? Acc : never }, { -readonly [Key in string | number | symbol]: Reducers[Key] extends RawReducerWithFinish<Value, any, Finished> ? Finished : Reducers[Key] extends RawReducerWithoutFinish<Value, Acc> ? Acc : never }>

Call Signature​

<Value, Reducers>(reducers): OptionalReducer<Value, { -readonly [Key in string | number | symbol]: Reducers[Key] extends RawReducerWithFinish<Value, any, Finished> ? Finished : Reducers[Key] extends RawOptionalReducerWithFinish<Value, Finished> ? Finished : Value }>

Type Parameters​

Value​

Value

Reducers​

Reducers extends readonly [RawReducerWithoutFinish<Value, any> | RawOptionalReducerWithoutFinish<Value> | FunctionReducer<Value>] | readonly (RawReducerWithoutFinish<Value, any> | RawOptionalReducerWithoutFinish<Value> | FunctionReducer<Value>)[] | Readonly<Record<PropertyKey, RawReducerWithoutFinish<Value, any> | RawOptionalReducerWithoutFinish<Value> | FunctionReducer<Value>>>

Parameters​

reducers​

Reducers

Returns​

OptionalReducer<Value, { -readonly [Key in string | number | symbol]: Reducers[Key] extends RawReducerWithFinish<Value, any, Finished> ? Finished : Reducers[Key] extends RawOptionalReducerWithFinish<Value, Finished> ? Finished : Value }>

Example​

import { map, pipe, reduce, toCount, toJoin, toMultiple, toSet } from 'lfi'

console.log(
  pipe(
    [`sloth`, `lazy`, `sleep`],
    map(word => word.length),
    reduce(toMultiple([toSet(), toCount(), toJoin(`,`)])),
  ),
)
//=> [
//=>   Set(2) { 5, 4 },
//=>   3,
//=>   '5,4,5'
//=> ]

console.log(
  pipe(
    [`sloth`, `lazy`, `sleep`],
    map(word => word.length),
    reduce(
      toMultiple({
        set: toSet(),
        count: toCount(),
        string: toJoin(`,`),
      }),
    ),
  ),
)
//=> {
//=>   set: Set(2) { 5, 4 },
//=>   count: 3,
//=>   string: '5,4,5'
//=> }
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Since​

v2.0.0