[[email protected]] AnimationFrames demo

import {defer, animationFrames, fromEvent} from 'rxjs'
import { animationFrame } from 'rxjs/internal/scheduler/animationFrame'
import {endWith, map, tap, takeWhile, finalize, mergeMap, concatMap, switchMap } from 'rxjs/operators'
const animation = (duration: number, distance: number) => defer(() => {
  const div = document.createElement('div')
  document.body.appendChild(div)
  div.className = 'square'

  return import {defer, animationFrames, fromEvent}