how to navigate about screen in angular 8 with in same component code example

Example 1: angular navigate using component

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

export class Component{ 				// Example component.. 
	constructor(private route:Router){} 
  
  	go(){
		this.route.navigate(['/page']); // navigate to other page
	}
}

Example 2: angular router navigate

// Here’s a basic example using the navigate method:

goPlaces() {
  this.router.navigate(['/', 'page-name']);
}

/*
I hope it will help you.
Namaste
*/

Example 3: how to add changes every time you route navigate to page in angular

// Place import at the top
import { Router,NavigationStart} from '@angular/router';

//Place the code below inside your class
constructor(private router: Router){}

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