Why doesn't App Module exist in Angular 17? – Angular

The Problem:

In Angular 17, the app.module.ts file, a central part of Angular projects, seems to have disappeared from the default project structure. Why has this happened, and how can developers continue to use Angular modules?

The Solutions:

Solution 1: Angular 17’s New Default: Standalone Components

In Angular versions before 17, creating a new project would result in a module-based application with an app module named app.module.ts. However, in Angular 17 and later, the CLI now defaults to creating standalone applications, which do not have an app module.

Standalone components were introduced in Angular 14 and are designed to be easier to understand, use, and require less boilerplate code. They eliminate the need for an app.module.ts file and allow for a more straightforward application structure.

If you want to create a module-based application in Angular 17 or later, you can specify the `–no-standalone` flag when creating a new project. This will generate a project with an app module as in previous versions of Angular.

For detailed information on standalone components and how to use them, refer to the Angular documentation at angular.dev.

Video Explanation:

The following video, titled "”Kelly", provides additional insights and in-depth exploration related to the topics discussed in this post.

”Kelly