[cat199]

Had a similar opinion until dusting off my browser for some front end work recently..

Browsers being roughly standards compliant, and those standards congealing is a relatively new thing (last 10 years), having this happens facillitates alot of browser-side dev (e.g. JS) which simply wasn't possible before, throw in the growth of mobile/tablet UI's, and server side javascript, and the shift from 'CGI extensions' into web-native applications where the browser is the GUI and the 'web server' is really the 'application server', and the appropriate paradigms to deal with this change rapidly.. the frameworks have changed because the underlying platform and its use is rapidly evolving.

I think if you look at GUI toolkits early on as the desktop evolved and you'll find a similarly chaotic and changing picture (e.g. Cocoa is not MacOS v1; WinNT is not Windows 1.0, and neither are dosshell, etc)

[LeoNatan25]

Uhm, huh? The DOM model has not really changed at all. All those framework just purport to make some improvements on how nodes are configured and accessed.

On the other hand, you are very much wrong on the technologies you mention. Cocoa was developed in Next, and a huge amount has remained as was at the time of creation. NT is a kernel, not API. Assuming you mean Win32, which debuted with Windows NT 3.1, it was very compatible in concepts and source with the Windows API (retrofitted as "Win16").