Some RxJS best practices are universal, like avoiding unsubscribe hell and nested subscriptions. But some are less black and white. Should you use a mergeMap, concatMap, or swichMap? When does it make sense to use a forkJoin vs combineLatest vs zip? And how can you best set up your RxJS pipeline to react to user actions. We’ll look at these and other suggestions for successfully working with RxJS.