What is ActivatedRouteSnapshot class in Angular?

The ActivatedRouteSnapshot class is a key element in the Angular framework that provides information about a route associated with a component loaded in an outlet.

When a user navigates to a different route in an Angular application, the router creates a new ActivatedRouteSnapshot object that contains information about the activated route. This information includes the route’s URL, parameters, query parameters, data, and other related information.

Developers can access the ActivatedRouteSnapshot object through the ActivatedRoute service in their components to retrieve information about the current route or to access parameters and query parameters passed in the URL.

Here is an example of how to use ActivatedRouteSnapshot in an Angular component:

    
      import { Component, OnInit } from '@angular/core';
      import { ActivatedRoute } from '@angular/router';
      
      @Component({
        selector: 'app-example',
        templateUrl: './example.component.html',
        styleUrls: ['./example.component.css']
      })
      export class ExampleComponent implements OnInit {
        constructor(private route: ActivatedRoute) { }
      
        ngOnInit() {
          this.route.paramMap.subscribe(params => {
            const id = +params.get('id');
            // Use the id to fetch data from a service
          });
        }
      }
    
  

In this example, the ActivatedRouteSnapshot object is accessed through the ActivatedRoute service to retrieve the ‘id’ parameter from the route’s URL. This parameter can then be used to fetch data from a service based on the route parameters.

Overall, the ActivatedRouteSnapshot class is an important part of the Angular router that provides valuable information about the current route, allowing developers to create dynamic and responsive applications.