There are a couple of nice minimal spreadsheets in js: http://web.archive.org/web/20130606222859/http://thomasstreet.net/blog/spreadsheet.html http://web.archi

There are a couple of nice minimal spreadsheets in js: http://web.archive.org/web/20130606222859/http://thomasstreet.net/blog/spreadsheet.html http://web.archive.org/web/20130606222859/http://thomasstree... Inspired by that, an even smaller one: https://jsfiddle.net/ondras/hYfN3/ https://jsfiddle.net/ondras/hYfN3/ The latter catches circular references rather than trying to calculate the fixpoint