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Module

x/rimbu/stream/async-custom/async-fast-iterator-base.ts>AsyncIndexedIterator#fastNext

Rimbu is a TypeScript library focused on immutable, performant, and type-safe collections and other tools.
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method AsyncIndexedIterator.prototype.fastNext
import { AsyncIndexedIterator } from "https://deno.land/x/rimbu@1.0.0/stream/async-custom/async-fast-iterator-base.ts";

Parameters

optional
otherwise: AsyncOptLazy<O>

Returns

Promise<[number, T] | O>