AsyncReducer.minBy | /common/async-reducer.ts | rimbu@0.13.1

Module

x/rimbu/common/async-reducer.ts>AsyncReducer.minBy

Rimbu is a TypeScript library focused on immutable, performant, and type-safe collections and other tools.

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mod.ts (default module)

variable AsyncReducer.minBy

import { AsyncReducer } from "https://deno.land/x/rimbu@0.13.1/common/async-reducer.ts";
const { minBy } = AsyncReducer;

Returns a Reducer that remembers the minimum value of the inputs using the given compFun to compare input values

Examples

Example 1

const stream = Stream.of('abc', 'a', 'abcde', 'ab')
console.log(stream.minBy((s1, s2) => s1.length - s2.length))
// 'a'

type

{ <T>(compFun: (v1: T, v2: T) => MaybePromise<number>): AsyncReducer<T, T | undefined>; <T, O>(compFun: (v1: T, v2: T) => MaybePromise<number>, otherwise: AsyncOptLazy<O>): AsyncReducer<T, T | O>; }