Mar 01, 2019
“Many who have learned from Hesiod the countless names of gods and monsters never understand that night and day are one.”
What is Isomorphism?
The two major contrasting SPA application architectures that contrast with IJA are Model-View-Controller (MVC) and Model-View-Presenter (MVP). In the MVC architecture, a “separation of concerns” enforcement exists between the rendered results (View), the application data (Model), and the application logic that controls the processing pipeline (Controller). In the MVP architecture, the Presenter mediates events generated in the interface and the data.
IJA addresses these issues by breaking generation of SPAs into two stages, providing equivalent functionality via a different route. In the first stage, the server generates an initial view for the SPA and deliver the initial view to the client to create the impression the application loaded instantaneously. Secondly and separately, the client downloads the remainder of the application in the background. When the application download completes, the client has both the external appearance and the internal logic to handle requests from the user.
This isomorphic approach has advantages on top of its performance improvements; for instance, it vastly improves a site’s Search Engine Optimization (SEO). As preparation for serving up search results, modern search engines send out “web crawlers” which examine the contents of pages to both index the content and to calculate page rankings. This indexing uses content elements from the page including text, image descriptions, and links to calculate content relevant, to measure the depth of treatment of the topic, and to evaluate how the coverage has been received by peers.
While IJA can improve both site performance and SEO, proponents note that the shift in the development paradigm can cause the framework to change more quickly and can require more frequent application maintenance and updates. IJA also introduces the difficulty of writing code that needs to run in two distinct environments, meaning developers have to be aware of the differences’ potential effects.
Ready to Explore this Development Option?
If you think the performance and SEO improvements of an IJA could benefit you, TechArk’s team is ready to help. Contact us today!