What could be causing the router event to not display routes within the component and instead showing an

Here is the code snippet for my component:

import { Component } from '@angular/core';
import { Router, ActivatedRoute, NavigationStart } from '@angular/router';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})

export class AppComponent {
  showMenu:any='';
  constructor(router:Router) {
    router.events.forEach((event) => {
      if(event instanceof NavigationStart) {
          this.showMenu = event.url !== "/newsection";
          console.log(event.url);
      }
    });
  }
}

An error message I am encountering states:

ReferenceError: NavigationStart is not defined

Answer №1

    import { Component } from '@angular/core';
    import { Router, ActivatedRoute, NavigationStart } from '@angular/router';

    @Component({
      selector: 'app-root',
      templateUrl: './app.component.html',
      styleUrls: ['./app.component.css']
   })
   export class AppComponent {
     showMenuStatus:any='';
     constructor(routerService:Router) {
       routerService.events.forEach((event) => {
         if(event instanceof NavigationStart) {
             this.showMenuStatus = event.url !== "/newsection";
             console.log(event.url);
           }
        });
      }
    }

Answer №2

Switch out:

import { Router, ActivatedRoute } from '@angular/router';

with:

import { Router, NavigationStart } from '@angular/router';

After making this change, you can set up a subscription as follows:

router.events.subscribe(event => {
    if(event instanceof NavigationStart) {
        // ...
    }
}

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