text: import {Router, RouterConfiguration} from 'aurelia-router';
  
  export class App {
    router: Router;
  
    configureRouter(config: RouterConfiguration, router: Router) {
      config.title = 'Contacts';
      config.map([
        { route: '', moduleId: 'no-selection', title: 'Select' },
        { route: 'contacts/:id', moduleId: 'contact-detail', name: 'contacts' }
      ]);
  
      this.router = router;
    }
  
    constructor() {
      this.gridColumns = [
        { headerName: "First Name", field: 'firstName' },
        { headerName: "Last Name", field: 'lastName' },
        { headerName: "Email", field: 'email' },
        { headerName: "Phone No.", field: 'phone' },
      ];
  
      this.rows = [
        { firstName: 'Ajay', lastName: 'Jadhav', email: 'jadhavajay@gmail.com', phone: '123345567' }
      ];
    }
  
  }