single | /mod.ts | stream_observables@v1.3

A collection of observables built with ReadableStreams & friends.

Latest

function single

import { single } from "https://deno.land/x/stream_observables@v1.3/mod.ts";

single<T>(o: Observable<T>): Promise<T>

Resolves with the only element emitted by the observable. If zero or more than one items are emitted, the promise is rejected.

Type Parameters

Observable to extract from.

Promise<T>

Promise that resolves with a single item.