[snowwrestler]

WebKit, yes - because all websites must comply with it if they want to succeed.

jQuery and Bootstrap, no. They are useful libraries, but developers can choose not to use them and still succeed. Few of the biggest websites use them, for instance--they mostly write their own javascript and templates.

But they all test against WebKit.

[beatgammit]

True. I don't work at a large company, and we definitely don't have a huge install base, but we develop several large JS apps, none of which use jQuery.

Only our smaller, cobbled together pages use jQuery. If it grows, we switch to something that meets our idiomatic style better: smaller modules in a CommonJS/AMD style.

JQuery takes over your code, and it seems like WebKit is doing the same thing. Some of our developers only include -webkit prefixes until I complain loud enough for them to throw in the rest: -moz, -o-, -ms.

I hope FF never switches, because then we'd be even more locked in.