Angular Model Pattern - combine state from multiple models

ampe-combine-state.ts

  /* session and clients models in some component or service */
    
  const filteredClients$ = this.sessionService.session$
    .combineLatest(this.clientService.clients$)
    .map(([session, clients]) => clients.filter(client => {
       if (client.vip && session.accessVips) {
         return true;
       } else if (!client.vip) {
         return true;
       } 
       return false;
    }));