Re: [webcomponents] Auto-creating shadow DOM for custom elements

[Boris Zbarsky]

On 12/7/13 5:37 PM, Domenic Denicola wrote:
$(document.querySelector(".my-slider")).slider("option", "disabled", false);
instead of

document.querySelector(".my-slider").disabled = false;

I should note that the latter is _much_ more likely to be fast, for 
people who care about that sort of thin.  In particular, it's much more 
likely to be simple straight line code that operates on monomorphic 
types than the former; the former is more likely to end up in some sort 
of generic dispatch framework that ends up with polymorphic code to boot.

So it's much more likely that a JIT can usefully inline the latter and 
compile it to just a few instructions than it is that it can do that 
with the former...

-Boris