March 10, 2011
Currently, I am porting QuickSilver from ExtJs 3.3 to ExtJs 4.0. There has been a complete rewrite of much of the library and this has resulted in a great deal of work in migrating the Smalltalk widget libraries.
ExtJs 4.0 has a new class system which is more similar to the Smalltalk class system.
Smalltalk has long had the reputation for being a highly productive language. I keep wondering whether the productivity has been due to the simple language syntax or to the powerful tools available in the environment. It seems that Dan Ingalls has built a complete Smalltalk development environment