Save time avoiding common mistakes using RxJS by André Staltz

• Convert RxJS Subjects to Observables
• Replace Observable.create with Observable creation helpers
• Use takeUntil instead of manually unsubscribing from Observables
• Use the map operator instead of firing events on a Subject
• Convert an underlying source of data into an Observable
• Use flattening operators instead of nested subscriptions
• Use switchMap to avoid leaks when flattening
• Move important side effects from do() to subscribe()
• Implement pause and resume feature correctly through RxJS
• Replace zip with combineLatest when combining sources of data
• Know when to extend the Observable class
• Make Observables hot only where necessary