Real-time ASCII rendering in Javascript (part 1)

As I approach my high-20s birthday I’m feeling nostalgic for the demo coding days of my youth.  I was never on the level of FC but managed some real time fire demos, plasma, bump mapping etc.

I was playing around with ASCII rendering to a <pre> block and it’s fast enough in modern browsers to pull off a reasonably high resolution fractal zoomer:  Demo here.