> From my perspective client-side applications are a solved problem thanks to React. React is very cool, no doubt, and I use it in my own app, but let's not ge

> From my perspective client-side applications are a solved problem thanks to React. React is very cool, no doubt, and I use it in my own app, but let's not get ahead of ourselves. React is far from perfect: - the Virtual DOM is a leaky abstraction: you sometimes need to get your hands on a real DOM node: http://facebook.github.io/react/docs/working-with-the-browser.html http://facebook.github.io/react/docs/working-with-the-browse... - if you're updating the virtual DOM from anywhere other than React's event loop (for example from a setTimeout() or XHR callback), batching doesn't happen properly which can lead to inefficiency. Needing to be aware of what runs inside a React event loop vs. what doesn't can add application complexity. More info: https://groups.google.com/forum/#!topic/reactjs/LkTihnf6Ey8 https://groups.google.com/forum/#!topic/reactjs/LkTihnf6Ey8 - writing manual event handlers is a somewhat more manual and less expressive than some of the two-way data binding approaches like Knockout.js or Angular.js.