Unlocking Efficiency: Seven Advantages of Upgrading to Angular

Explore the top seven benefits of transitioning from AngularJS to Angular, including improved performance, mobile responsiveness, and TypeScript integration.

In January 2022, Google announced it would no longer update, support, or offer security patches for AngularJS. In 2024, businesses must make a critical choice about their website software stack: to switch from AngularJS to Angular2+ or migrate to another framework. Deciding to upgrade from AngularJS to Angular (also known as Angular 2+) requires businesses to weigh the pros and cons.


What are the Advantages of Upgrading to Angular?

Angular is a robust framework for building dynamic web applications. With each iteration, Angular introduces enhanced features that empower developers to create scalable, maintainable, high-performing applications. Here are some key benefits of upgrading to Angular: 


Performance Boost: Angular, with its architecture designed for modern browsers, offers a significant performance boost over AngularJS. Utilizing the latest web standards offers faster rendering and a smoother user experience.

Mobile Responsiveness: The world has gone mobile, and Angular is well-equipped to meet modern development demands. Upgrading to Angular allows developers to create applications that are inherently more mobile-friendly, ensuring a seamless experience across devices.

TypeScript Integration: Angular embraces TypeScript, a superset of JavaScript. The static typing provided by TypeScript aids in catching errors during development, enhancing code quality, and making it easier to maintain over time.

Modular Architecture: Angular utilizes a modular framework to encourage the creation of reusable components and services, increasing development speed and facilitating maintenance and scalability.

Enhanced Templating: Angular's templating system is more powerful, offering improved data binding and expression handling. This results in cleaner, more readable code and a more intuitive development experience.

RxJS Integration: Angular leverages RxJS for reactive programming, simplifying the management of asynchronous operations and event handling. This is a significant advantage when dealing with complex applications with numerous asynchronous tasks.

Official Tooling Support: Angular offers a robust set of tools and a Command Line Interface (CLI) that streamlines development tasks. From project setup to testing and deployment, Angular's tooling ensures a smooth development workflow.


What are the Disadvantages of Upgrading to Angular? 

Upgrading from AngularJS to Angular has many advantages, including enhanced performance, mobile response, and tooling support. However, it is important to consider the potential challenge of an Angular upgrade. Here are the top challenges developers face when upgrading to Angular:

Learning Curve: Transitioning from AngularJS to Angular requires developers to adapt to a new set of concepts and practices, leading to a potential learning curve. This adjustment period may impact development timelines and cause disruptions for your business.

Code Migration: The migration process can be complex and time-consuming. Existing AngularJS applications may need to be refactored or rewritten to align with Angular's architecture, adding an extra layer of effort to the upgrade.

Third-Party Library Compatibility: Not all third-party libraries and components designed for AngularJS seamlessly integrate with Angular. Developers might need to find alternative solutions or invest time developing custom replacements.

Build Size: Angular applications tend to have larger build sizes compared to AngularJS. While this might be a minor concern for well-connected users, it can impact the initial load times, particularly on slower network connections.

Development Tools: Developers accustomed to the AngularJS tooling might find the transition challenging. Adjusting to a new set of development tools and workflows can temporarily impact productivity.

Project Scope: The effort required for migration depends on the size and complexity of the AngularJS application. Smaller projects might not experience the same level of benefits as larger, more intricate applications.


Creating an Angular Migration Plan

In conclusion, the decision to upgrade from AngularJS to Angular is a strategic one that warrants careful consideration. Upgrading to Angular offers many advantages for development teams that can improve the quality and efficiency of their code. By acknowledging the challenges that can come with an Angular upgrade, companies can ensure a smoother transition. The key lies in a well-thought-out migration plan, coupled with a commitment to staying abreast of the latest in web development. When considering whether to upgrade, it may be beneficial to bring in a third party to help evaluate the unique risks that you may face. A good partner can help you reach the ultimate goal of delivering sustainable applications. Eliassen Group experts are here to help your organization with your application development and integration Initiatives.



1. What are the main advantages of upgrading from AngularJS to Angular2+ for businesses?

Upgrading from AngularJS to Angular2+ offers businesses advantages like improved performance, mobile responsiveness, TypeScript integration for better code quality, modular architecture for scalability, enhanced templating, RxJS for simpler asynchronous operations, and robust tooling support.

2. What are the potential challenges developers may face during the migration process from AngularJS to Angular?

Some challenges of migrating include a learning curve for developers, a complex migration process, compatibility issues with third-party libraries, larger build sizes impacting load times, adjusting to new development tools, and varying effort based on project size and complexity.

3. How does Angular's TypeScript integration contribute to code quality and maintenance compared to AngularJS?

Angular's TypeScript integration enhances code quality by providing static typing, aiding error detection during development, and facilitating maintenance over time compared to AngularJS.

4. Can smaller businesses with less complex AngularJS applications still benefit from upgrading to Angular, or are the advantages primarily for larger projects?

While larger projects may see greater benefits from the upgrade, smaller businesses with less complex AngularJS applications can still benefit, though the extent may vary based on specific project needs.