I almost sent them a critic-gram about this one, then I stopped and thought. I suspect their method is measuring the fraction of JS activity which is self-perce

I almost sent them a critic-gram about this one, then I stopped and thought. I suspect their method is measuring the fraction of JS activity which is self-perceived as "programming" in the sense of software engineering. Rightly or wrongly, laying out pulldown menus with JQuery and the like is broadly (not universally) perceived as the practice of "design". Surely all of us know that plenty of echt programming is done in JS, and also plenty of let's-make-this-widget-dynamic work by people whose skills do not include structuring large blocks of code. The distinction is not an XOR, but it is both clear and real, and I believe the Tiobe results reflect it. My further W.A.G. is that their method under-represents the level of software engineering activity done in JS relative to, say, Ruby and Python, but that it does so because developers themselves are lagging in their perceptions.