Angular

• Validators should be pure functions. #spaced
• Change detection in Angular
• Initial null problem in AsyncPipe - https://github.com/angular/angular/issues/43727.

  Angular Forms

• Angular Custom Form Controls: Complete Guide - Angular University
• Custom form controls in Angular

Debugging

• Debugging Angular apps using VS Code

RxJS

• When to unsubscribe
  • Angular/RxJS When should I unsubscribe from Subscription - Stack Overflow
  • When to Unsubscribe in Angular - Netanel Basal
  • RxJS: Don’t Unsubscribe - Ben Lesh
• RxJS - combineWith vs withLatestFrom
• The catchError operator returns a new Observable stream (acts as a switchMap). #spaced