method StreamClass.dedupBy
Private
StreamClass.dedupBy<S>(
source: Source<S>,
key: (value: Exclude<S, AnyFailure>) => unknown
): StreamClass<Exclude<S, AnyFailure>, Extract<S, AnyFailure>>

StreamClass#dedupBy as a static: Stream.dedupBy(source, …) is Stream.from(source).dedupBy(…).

await Stream.dedupBy([1, 1, 2], (n) => n).collect(); // [1, 2]

Type Parameters

Parameters

source: Source<S>
key: (value: Exclude<S, AnyFailure>) => unknown

Return Type

StreamClass<Exclude<S, AnyFailure>, Extract<S, AnyFailure>>

Usage

import { StreamClass } from "lib/stream/stream.ts";