[mathieulorber]

Polymer is a framework based on web-components (a relatively low level fmk - it's not angular). Webcomps is a coming standard to be implemented natively by browser, so you'll have a native components model, at last ! But webcomps aren't ready yet. Polymer is heavily based on polyfills and is slow or won't work on older browsers because of that. But yes, Polymer has a great API.

I'd say React is the best response TODAY if you want a component approach.

And if you want to see what future could look like, give a try to Polymer Dart =)

[xxgreg]

Apparently the beta of Polymer, which should be out very soon, has huge performance improvements. Sounds like it is going to be very usable even in modern browsers, including mobile, without native shadow dom. Have a look at the 0.8 branch.