Can we have multiple NgModule in Angular?

Yes you can split your application into modules.

What are the modules in Angular?

Module in Angular refers to a place where you can group the components, directives, pipes, and services, which are related to the application. In case you are developing a website, the header, footer, left, center and the right section become part of a module.

Can we have nested modules in Angular?

Angular 2 Modules Nesting modules Modules can be nested by using the imports parameter of @NgModule decorator.

Where is NgModule located?

The basic NgModulelink At the top are the import statements. The next section is where you configure the @NgModule by stating what components and directives belong to it ( declarations ) as well as which other modules it uses ( imports ).

Is Javascript module and NgModule are same?

An NgModule differs from the JS Modules specifically because unlike JS Modules, NgModules do not have their own file. Also they need the presence of the decorator @NgModule and its metadata. An NgModule has a declarations list wherein it defines all the member classes and it bounds declarable classes.

What is difference between module and component in Angular?

Typically module is a cohesive group of code which is integrated with the other modules to run your Angular apps. A module exports some classes, function and values from its code. The Component is a fundamental block of Angular and multiple components will make up your application.

Should I lazy load all modules?

By default, NgModules are eagerly loaded, which means that as soon as the application loads, so do all the NgModules, whether or not they are immediately necessary. For large applications with lots of routes, consider lazy loading —a design pattern that loads NgModules as needed.

What is core module in Angular?

The core module usually contains components that are used once in an Angular application, such as a navigation bar, loader, footer, etc. This module should be loaded globally in AppModule .

What are the types of NgModule?

There are five types of NgModule –

  • Features Module.
  • Routing Module.
  • Service Module.
  • Widget Module.
  • Shared Module.

Does Angular use ESM?

Since the Angular Package Format uses primarily a single “flat” ES Module per entrypoint, this means that most build tooling will not be able to split code in a single entrypoint into multiple output chunks.