ngx-admin/src/app/pages/pages-routing.module.ts

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

import { PagesComponent } from './pages.component';
import { DashboardComponent } from './dashboard/dashboard.component';
import { UiFeaturesComponent } from './ui-features/ui-features.component';
import { ComponentsComponent } from './components/components.component';
import { MapsComponent } from './maps/maps.component';

const routes: Routes = [
  {
    path: '',
    component: PagesComponent,
    children: [
      {path: 'dashboard', component: DashboardComponent},
      {path: 'ui-features', component: UiFeaturesComponent},
      {path: 'components', component: ComponentsComponent},
      {path: 'maps', component: MapsComponent},
      {path: '', redirectTo: 'dashboard', pathMatch: 'full'}
    ]
  }
];

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