I am trying to move from java to scala . I am basically a web developer where i use zkoss, vaadin as my framework. Do scala has widget based framework.Fully ajax based? I haven't tried lift and play need some advice is that fully ajax based?
The Vaadin framework can be used with Scala. There is even a project called Scaladin to help you with that. Since you already know it, I suggest you try learning scala with that framework. After you have a good understand of scala you should have a better base for what framework to choose in case you want to leave Vaadin.
Here are some resources: