Light Table watches preview

Where most IDEs rely on static analysis to give you information about your code, Light Table is based around live interaction with your code. You can eg attach to a running browser and inject new js or css code into the page from you editor without refreshing. Check out some of the demos: link ▶ this video link Light Table is also designed to be easily extensible, in the same way that emacs is. There is a small core which mostly defines interfaces and the rest of the features are implemented as plugins.

Here's a video of the coolest new feature, "watches": ▶ this video I'm also really excited about the behaviors stuff. It means that the entirety of LT's functionality is described in a datastructure that you could reasonably modify by hand. Here's a gist of default.behaviors: link The :+ is there because it's stored as a diff, which allows other behaviors files to add and remove functionality based on the order they're loaded.