import { Component, OnInit } from '@angular/core'; import { ActivatedRoute } from '@angular/router'; @Component({ selector: 'app-docs', templateUrl: './docs.component.html', styleUrls: ['./docs.component.scss'] }) export class DocsComponent implements OnInit { activeTab = 0; constructor( private route: ActivatedRoute, ) { } ngOnInit(): void { const url = this.route.snapshot.url; this.activeTab = ( url[2].path === "rest" ) ? 0 : 1; } }