Framework · 2007–2018 · Web Boom
Ext JS / Sencha
Enterprise desktop UI in the browser — grids, trees, and megabytes of widget chrome.
How Ext JS / Sencha mutated
Ext JS mutated into Sencha and survived as licensed widgets for internal admin panels nobody screenshots. It faded from greenfield because mobile and design systems rejected its look and weight. The graveyard is full of data-entry apps that still pay maintenance.
Compare with
Related
Framework · 2006–2018
jQuery
DOM peace treaty for a fractured browser world. Mission accomplished — then frameworks ate its job.
Framework · 2006–2017
Google Web Toolkit (GWT)
Write Java, compile to JavaScript. Enterprise AJAX before anyone admitted they hated JavaScript.
Framework · 2010–2021
AngularJS (1.x)
Two-way binding magic that became a migration tax. Angular 2+ was a rewrite; the 1.x apps lingered for years.