sizzle

> Even if Node was 5x slower than PHP I would still go for Node because of its easy jQuery syntax That "jQuery syntax" has nothing to do with the language itself. jQuery uses Sizzle[0], which is a CSS selector library for JavaScript. There are plenty of PHP libraries which provide CSS selectors, such as the Symfony CssSelector component[1]. [0] https://github.com/jquery/sizzle [1] https://github.com/symfony/CssSelector

In the case of querySelectorAll, it does[1] (after performing some checks for easy wins) and if this test[2] is anything to go by, it can actually perform better in some cases. [1] https://github.com/jquery/sizzle/blob/master/sizzle.js#L237 [2] http://jsperf.com/yui3-vs-jquery-selector-test-3/54

Right from the source: "Sets document-related variables once based on the current document" [1]. It's a very readable document and the comments give good overview about quirks you have to be aware of. My personal opinion: not using jQuery (or similar library) for normal webpages is premature optimization and it will hurt more than help. [1] https://github.com/jquery/sizzle/blob/master/dist/sizzle.js#...

Interesting, but I'm not sure how appropriate it is to be comparing it to jQuery in such a head-to-head fashion such as by saying "15x slower", etc. Does Dommy offer the same features (including the browser support) that jQuery does? If not, then you're just comparing apples to oranges, and it doesn't sound like it does (or even plans to) on account that it sounds like there are design decisions that separate the two with regards to the published API ("Inspired by jQuery, but adapted to be functional in order to better fit with ClojureScript core"). Also, wouldn't it be more accurate for the selector testing to actually test against Sizzle[1]? Other features aren't even present in jQuery, such as templating, and so I'm not sure why you'd even compare that. Yes people can and do use templates with jQuery, but that's an implementation detai