Architectural design patterns are the ways in which we tie our code together. If we have a dozen different modules, it is how those modules talk to each other that defines our architecture.
The architectural design patterns utilized in JavaScript code bases have changed massively over recent years. With the steady proliferation of popular frameworks such as React and Angular, we've seen code bases take on new conventions. The landscape is still very much shifting, so we shouldn't expect any specific standard to emerge any time soon. Nonetheless, most frameworks tend to follow the same broad architectural patterns.
An example of a popular architectural pattern is the separation of data logic and rendering logic. This is famously adopted by many different UI frameworks, albeit with different styles. This is likely due to the heritage of software...
