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x/rimbu/stream/async/async-reducer.ts>AsyncReducer.startsWithSlice

Rimbu is a TypeScript library focused on immutable, performant, and type-safe collections and other tools.
rimbu-org/rimbu
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function AsyncReducer.startsWithSlice
import { AsyncReducer } from "https://deno.land/x/rimbu@1.2.1/stream/async/async-reducer.ts";
const { startsWithSlice } = AsyncReducer;

Returns a AsyncReducer that returns true if the first input values match the given slice values repeated amount times. Otherwise, returns false.

Parameters

slice: AsyncStreamSource<T>
  • a async sequence of elements to match against
optional
options: { eq?: Eq<T> | undefined; amount?: number; } = [UNSUPPORTED]
  • (optional) an object containing the following properties:
  • amount: (detaulf: 1) the amount of elements to find
  • eq: (default: Eq.objectIs) the Eq instance to use to compare elements