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const routes: Routes = [
  {path: '', redirectTo: 'home', pathMatch: 'full'},
  {path: 'home', component: HomeComponent},
  { path: 'feature',
    loadChildren: './some-feature/some-feature.module#SomeFeatureModule'}
];

{ path: ‘feature’, 
  loadChildren: () => import(‘./some-feature/some-feature.module’)
                                       .then(m => m.SomeFeatureModule)}