Why should you care?

Reading enterprise codebases requires knowing both standalone bootstrapping and NgModule patterns.

See it live — copy this example

Paste into your MeanVerse project (Angular + Express + MongoDB), then run with ng serve / node / mongosh as noted.

// Legacy feature module (still common in banks)
@NgModule({
  declarations: [LegacyReportTableComponent],
  imports: [CommonModule, RouterModule.forChild([
    { path: 'reports', component: LegacyReportTableComponent }
  ])],
  providers: [ReportService]
})
export class ReportsModule {}
// Modern: bootstrapApplication(AppComponent, { providers: [...] })

What happened?

• NgModule groups related pieces.
• forChild adds feature routes.
• New MeanVerse features prefer standalone + loadComponent instead of new NgModules.

Practice next

1. Open an older Angular repo and locate one feature NgModule.
2. Compare with standalone bootstrap in angular.json main.ts.
3. Migrate one small component to standalone imports array.
4. Convert ReportsModule route to loadComponent lazy standalone.
5. List providers declared in AppModule vs root injectors.

Remember

NgModules = legacy bundling unit. Standalone reduces boilerplate for new work. Know both when maintaining enterprise apps.

Healthcare legacy merge

MeanVerse acquires app built on NgModules; gradual standalone migration planned.

Outcome: Developers read both patterns without blocking releases.