This weekend I took part in node knockout along with Peteris Krumins, David Wee, and Josh Holbrook on team replicants.
Our entry, heatwave, uses node-heatmap to draw a heatmap over your code in realtime to show the parts that are most active as the code executes.
Heatwave accomplishes this trick using bunker to add hooks around every expression. When these hooks get called, the heatmap gets updated!
Check out the live demo and if you like what you see, vote for us!
