It has a compatible syntax at a third of the weight. It's very well suited to mobile.
With regards to the original post; it's fantastic to be doing things efficiently, but in the vast majority of circumstances I would presume that forcing the user's browser to download some additional kb of libraries is preferable to forcing the user to Google a currency conversion.
As this article points out, we're past the point where we need frameworks for small/medium projects. Animation is now handled by CSS3. JavaScript has been updated in all major browsers and now supports bind/each/map/filter right out of the box.
If you're starting now, you can build effectively in JavaScript alone. That said, you may still benefit from a framework if you're doing a very large, long-term project.
That's completely contrary to what I've experienced. Only browsers that "need" a little extra JS/CSS are the old IE versions. Quotes indicate you don't necessarily need to enhance pages in those browsers at all these days.
If your experiences indicate otherwise, you are simply doing something wrong.
PS. jQuery is horrible. Every time you think you've figured out all of their undocumented quirks, they change the logic. It's famously inept in IE 6/7.
http://zeptojs.com/
It has a compatible syntax at a third of the weight. It's very well suited to mobile.
With regards to the original post; it's fantastic to be doing things efficiently, but in the vast majority of circumstances I would presume that forcing the user's browser to download some additional kb of libraries is preferable to forcing the user to Google a currency conversion.