ExtJS vs ExtGWT - Are they functionally equal?

Question

Assuming a person has same level of expertise in JS and Java, Should he choose ExtJS or ExtGWT for a new project with Java / Spring server side backend,

1.Are they functionally equal?. All the widgets available in ExtJS are available in ExtGWT?

2.Or new widgets available in the ExtJS and they will be ported ExtGWT in next releases?.

I see that ExtJS 4 is coming. But ExtGWT is 3 only.

I could not find any comprehensive comparison between ExtJS and ExtGWT

Answer 1

• I have seen ExtGWT releases usually trail ExtJS
  
• You can compare the available capability/widgets by browsing through the "Samples and Demos" for ExtGWT and ExtJS
  
• You also want to consider the availability of a huge number of user extensions and plugins available for ExtJS

Considering the "same level of expertise" factor, I would chose a stack comprised of ExtJS (+ ExtDirect) + directjngine + Spring