Reducer.startsWithSlice | /mod.ts | rimbu@1.2.0

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

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mod.ts (default module)

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function Reducer.startsWithSlice

import { Reducer } from "https://deno.land/x/rimbu@1.2.0/mod.ts";
const { startsWithSlice } = Reducer;

startsWithSlice<T>(slice: StreamSource<T>, options?: { eq?: Eq<T> | undefined; amount?: number; }): Reducer<T, boolean>

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

Type Parameters

Parameters

slice: StreamSource<T>

a 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

Returns

Reducer<T, boolean>