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x/better_iterators/mod.ts>LazyAsync#firstOr

Chainable iterators (sync and async) for TypeScript, with support for opt-in, bounded parallelism
NfNitLoop/better-iterators
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method LazyAsync.prototype.firstOr
import { LazyAsync } from "https://deno.land/x/better_iterators@v1.2.1/mod.ts";

Get the first item. Returns defaultValue if there is no first item.

Parameters

defaultValue: D

Returns

Promise<T | D>