Let's see if we can run demos here in wiki. Move the dots around to recompute the image. docs
const initialData = { x:10, y:0 } const render = ({x,y}, c) => { c.point(x, y, {fill:'red'}) c.point(y, x) }
http://ward.dojo.fed.wiki/assets/pages/g9-demos/run-g9.html HEIGHT 160
We scrape code from this page and eval with g9. github
pages/g9-demos