distinct

import { distinct } from "https://raw.githubusercontent.com/surma/observables-with-streams/28c55be6d855780c677fd1f4ba975f4d3144891d/src/index.ts";

Returns a Transform where all subsequent repetitions of the same item are filtered out.

function distinct<T>(f?: (a: T, b: T) => boolean): Transform<T>;

distinct<T>(f?: (a: T, b: T) => boolean): Transform<T>

f?: (a: T, b: T) => boolean optional

Transform that emits some items from the original observable.