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Developing an Angular 2 Edge by Ran Wahle, Mary Gualtieri, Wojciech Kwiatek, Suguru Inatomi, Filip Lauc, Troy Mott

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Chapter 13. Migration

Angular 2.0 is a complete rewrite of Angular 1.x, as widely explained throughout the entire book. This raises the question of what to do with our “old” Angular 1.x applications (some of them may be two years old or less).

Building the same applications from scratch is sometimes impossible due to time and priority constraints. Therefore, the Angular team has come with a way to enable us with the incremental migration of our application.

Throughout the migration stage, the application is able to work with both Angular 1.x and Angular 2.0 frameworks, while we can migrate our components / services / filters one by one without hurting our application’s functionality.

Preparation

To start with the migration process we first ...

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