app-routing.module.ts

import { NgModule } from '@angular/core';
import { RouterModule, Routes } from '@angular/router';

const routes: Routes = [
  {
    path: '',
    loadComponent: () =>
      import('./user-detail/user-detail.component').then(
        ({ UserDetailComponent }) => UserDetailComponent
      ),
  },
];

@NgModule({
  imports: [RouterModule.forRoot(routes)],
  exports: [RouterModule],
})
export class AppRoutingModule {}