import { Component, OnInit } from '@angular/core'; import { LoadingService } from '../../services/loading.service'; @Component({ selector: 'core-loading', templateUrl: './loading.component.html', styleUrls: ['./loading.component.css'] }) export class LoadingComponent implements OnInit { constructor(private loadingService: LoadingService) { this.loadingService.isLoading.subscribe((v) => this.loading = v); } loading: boolean; ngOnInit() { } }