What is a module in Angular? What is the purpose of @NgModule?

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An NgModule is a container that groups related components, directives, pipes, and services . Marked with the @NgModule decorator. Modern Angular (v15+) prefers standalone components over NgModules. declarations — components, directives, pipes that belong to this module. imports — other modules whose exports this module needs. providers — services available for DI within this module. exports — what this module makes available to importing modules. bootstrap — the root component (only in AppModule ). Lazy loading — route-loaded modules ship as separate chunks. Standalone era — new code skips NgModules entirely; standalone: true on components imports their own dependencies. List the five metadata props: declarations, imports, providers, exports, bootstrap. Then drop the 2026 framing: 'standalone is the default; new code rarely needs `@NgModule`.'