import { Component ,OnInit} from '@angular/core'; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.scss'] }) export class AppComponent implements OnInit{ type = 'play'; constructor() { let tp = this.getQueryString("type"); if(tp){ this.type = tp; } } ngOnInit() { } getQueryString(name) { const reg = new RegExp('(^|&)' + name + '=([^&]*)(&|$)', 'i'); const r = window.location.search.substr(1).match(reg); if (r != null) { return unescape(r[2]); } return null; } }