Angular 19, the upcoming version of the widely used TypeScript-based web framework, is set to introduce a major shift in how components, directives, and pipes are created. With this update, the standalone: true flag will become the default for these building blocks, marking a move away from the traditional use of NgModules. This change simplifies the development process by eliminating the need to explicitly declare standalone: true in each component, providing a more streamlined approach for developers.
The standalone feature was first introduced in Angular 14 as part of a developer preview in June 2022. This feature allowed developers to build Angular applications without relying on NgModules, a mechanism that has long been used to organize code in a modular structure. Since then, the standalone feature has been stabilized and is now considered the best practice for writing Angular code. The Angular CLI has adapted to this shift by generating components with standalone: true by default, and the official Angular documentation now advocates for a “standalone first” approach, particularly for newcomers to the framework.
This change makes Angular more accessible for developers, simplifying the learning curve and speeding up the development process. Standalone components also enable several new features that enhance the flexibility and performance of Angular applications. For instance, the directive composition API allows for a more intuitive composition model, where standalone directives can be applied directly within the declaration of a host component or directive. Additionally, the deferrable views feature helps optimize performance by lazy-loading standalone components and directives at the template level.
Despite the shift towards standalone components, Angular’s core team has emphasized that NgModules and the standalone option will not be deprecated. Developers who prefer to work with NgModules can still do so by specifying standalone: false in the component decorator. To ensure a smooth transition, Angular plans to introduce an automated migration process for existing code. As part of this migration, a future update to Angular 19 will remove standalone: true from components that were previously standalone and will add standalone: false to any existing NgModules, ensuring backward compatibility and a seamless upgrade experience for all developers.