[grayrest]

I'd never heard of this library and I spend a couple hours a day reading developer news so I wouldn't call this popular.

I'd also argue that this as a current generation framework. I only did a brief skim but the patterns remind me of a Knockout or Enyo codebase with data binding between components doing explicit dom manipulation. The contributors tab shows a 2014 start but I'd have guessed a 2010-2011 start from looking at the code.

[jorgthuijls]

You'd be surprised. UI5 is made by SAP as their go-to UI technology. SAP's profit last year was over 6B euro and it's used in almost every large enterprise out there. It's just hard to see as a tech company because it's not consumer facing.

I'm an SAP and UI5 developer.

[grayrest]

I hope you don't take my comment as too much of an insult to your work. I consider the hallmarks of the current generation of frameworks to be component composition, framework based change synchronization (KVO, diffing, dirty checking), and the avoidance of DOM interaction (jsx, templates). Not being on the newest trend doesn't automatically make something bad and it's clear that you and your team put significant effort into your framework so I'll have to do a much more thorough investigation before I have a real opinion on it.

[Raed667]

Check every new SAP web application. It is not the best out there, but it is used A LOT.