How to access variables of one component in another component [Angular]

Question

I\'m new to Angular. I\'m trying a simple thing today. I\'ve gone through many answers but not able implement them correctly. I want to access some variables of filter-pan

Answer 1

You can create a service to share the data between components,

A new service called, filter-panel.service.ts file with setter() and getter() method,

import { Injectable } from '@angular/core';

@Injectable()
export class FilterPanelService {

  filterdata: any[];
  constructor() { }

   get data(): any{
    return this.filterdata;
  }

  set data(val: any){
    this.filterdata = val;
    console.log(this.filterdata);
  }

}

In filter-panel.component.ts set the value like,

export class FilterPanelComponent implements OnInit {

    public activeFilters: string[];
    public text: string="hello world";

    constructor(public filterPanelService:FilterPanelService) {

        this.activeFilters = [
            'Provider: CMS',
            'Region: All',
            'Provider Group:All',
            'Provider: CMS',
            'Region: All',
            'Provider Group: All'
        ];

        this.filterPanelService.data = this.activeFilters;
    }

    ngOnInit() {}
}

And in filter-bar.component.ts get the value like,

export class FilterBarComponent implements OnInit {
    @ViewChild('FilterPanelComponent', {static : false}) filterPanel: FilterPanelComponent;


    public values1: string[] = ['Philips'];

    public values2: string[];


    constructor(public filterPanelService: FilterPanelService) {

      //this.values2=this.filterPanel.activeFilters;  
    }

    ngOnInit() {
        //console.log(this.values2);
        console.log('value received ', this.filterPanelService.data);
    }
}

Working Stackblitz..