observable-callback/dist/es2015/observableCallback.js

A small utility for simplified creation of callback functions that publishes the argument to an observable stream when called.

import { Subject } from "rxjs";
const pass = (input$) => input$;
export function observableCallback(operator = pass) {
    const subject = new Subject();
    return [subject.pipe(operator), (arg) => subject.next(arg)];
}