Good thing we've had XML defining layouts for many years, despite many of the technologies that used the pattern being dead. XML as a layout definition vs XML a

Good thing we've had XML defining layouts for many years, despite many of the technologies that used the pattern being dead. XML as a layout definition vs XML as data were topics devs discussed heavily 15 years ago, too. So many Java frameworks used Xml to describe the user interfaces (like JavaServer Faces, early Tapestry, etc.). At one time, I worked with a lot was Adobe Flex which used MXML to define user interfaces [1], don't forget about Microsoft's XAML. It's actually amazing to me how many of Flex's great ideas live on in other frameworks not dependent on the Flash Player, and looking at some modern day React often reminds me if it. [1] http://flex.apache.org/doc-getstarted.html http://flex.apache.org/doc-getstarted.html