angular-rx-scavenger-collect-by-key.ts

import { Component, OnInit } from '@angular/core';
import { Scavenger } from '@wishtack/rx-scavenger';
import { interval } from 'rxjs';
 
@Component({
     template: `<div>{{ count }}</div>`
})
export class CounterComponent implements OnDestroy, OnInit {
 
    count: number;
 
    private _scavenger = new Scavenger(this);
 
    ngOnInit() {
        this.startCounting();
    }
 
    ngOnDestroy() {
    }
 
    startCounting() {
        interval(1000)
            .pipe(this._scavenger.collectByKey('count'))
            .subscribe(count => this.count = count);
    }
 
}