Upgrading Angular Applications
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Upgrading Angular Applications

About the Book

Many organizations have large AngularJS applications deployed to production. These applications may be built by multiple teams from different lines of business. They may use different routers and state management strategies. Rewriting such applications, or doing big bang migrations, is not just impractical, it is often impossible, and mainly for business reasons. We need to do gradually.

To help with the upgrade process the Angular team built NgUpgrade, a library for mix-and-matching AngularJS and Angular components. The question now is how we can use this library in the most advantageous way? What patterns and strategies should we use?

The book explores NgUpgrade in depth, including the mental model, implementation, subtleties of the API. It also talks about different strategies for upgrading large AngularJS applications.

It is written by Victor Savkin, a core Angular contributor and a co-founder of Nrwl - Angular Consulting for enterprise customers. He has been working with many companies helping them upgrade their AngularJS 1 applications.

About the Authors

Victor Savkin
Victor Savkin

Victor Savkin is an Angular core contributor, and co-founder of nrwl.io, providing Angular consulting to enterprise teams. Victor was previously on the Angular core team at Google, and built the dependency injection, change detection, forms, and router modules. Victor lives in Toronto, Ontario, enjoys playing around with eclectic programming tech, and has a particular interest in fonts and keyboard layouts.

Victor Savkin

Episode 41

Table of Contents

  • Introduction
  • Chapter 1: Preparation
    • Angular Style
    • Writing AngularJS Applications in the Angular Style
    • New Development in the Angular Style
    • Changing Existing Code to the Angular Style
  • Chapter 2: NgUpgrade in Depth
    • How to Use it Best
    • How it Works
    • Bootstrapping
    • Dependency Injection
    • Component Integration
    • Code Samples
    • Summary
  • Chapter 3: Upgrade Shell Strategy
    • Implementation
    • Summary
  • Chapter 4: Two Approaches to Upgrading Angular Apps
    • Vertical Slicing
    • Horizontal Slicing
    • Comparing Horizontal and Vertical Slicing
  • Chapter 5: Managing URL
    • Why Managing URL is Hard?
    • Single Ownership and Mixed Ownership
    • Sibling Outlets
    • Summary
  • Chapter 6: Lazy Loading AngularJS Applications
    • Dual Router Setup
    • Sibling Outlets
    • AngularJS Application
    • Angular Application
    • Loading AngularJS
    • Overview
    • Preloading
    • Code Samples

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