Making Sense of Application Architecture Choices

Just like functions and objects help developer efficiency by allowing code reuse and modularity at a micro level, application architectures help team efficiency at the macro level by organizing, abstracting and restricting how large pieces of code interact.

This paper summarizes the currently popular JavaScript application architectures and takes a deep dive into the latest application architecture that Sencha supports – Model-View-ViewModel (MVVM).

The Sencha Ext JS framework has become an industry standard for developing enterprise web applications thanks to its comprehensive widget library, powerful data package and robust tooling. Ext JS has proven to be a highly scalable and easily customizable framework, with over 60% of Fortune 100 companies and more than 2 million developers worldwide using it.

Since the original Ext JS 1.0 release in 2007, a lot has changed in our industry – and web applications are certainly larger and more complex than ever. In 2010, Sencha released Touch 1.0, delivering the industry’s first JavaScript framework to support a Model-View-Controller pattern (MVC), addressing the architectural problems often faced by large enterprise web applications. We then applied that feature to Ext JS 4.0 in 2011, helping to organize application code in the new world of enterprise web apps.

Sencha has recently released Ext JS 5.0 with optional support for the MVVM architectural pattern. Ext JS 5 includes features such as two-way data binding and declarative configuration. We know that enterprise web applications can be extremely diverse, and that it’s absolutely critical to choose the correct architecture at the beginning of a project to ensure its success. By supporting both MVC and MVVM, Ext JS 5 is the most flexible option among popular JavaScript frameworks for building enterprise web applications.

The Sencha Ext JS framework has become an industry standard for developing enterprise web applications thanks to its comprehensive widget library, powerful data package and robust tooling. Ext JS has proven to be a highly scalable and easily customizable framework, with over 60% of Fortune 100 companies and more than 2 million developers worldwide using it."