spellbinder

Pretty sweet. And an interesting implementation: https://github.com/mattinsler/spellbinder/blob/master/src/sp... (although more comments would be lovely). For prior art, see: http://rivetsjs.com http://nytimes.github.io/backbone.stickit/ But I have to say, that "example" is a pretty puffed up strawman. Most of the time, the real comparison is this: <p data-bind="count; [class:high-value] count > 100; [class:low-value] count < 50"></p> To this: <p class="<%= count > 100 ? 'high-value' : (count < 50 ? 'low-value' : '') %>"></p>