Lightweight Tables via JSON Specs and JavaScript // A lightweight grammar of tables. Build a table by declaring a JSON spec (titles, spanners, row groups, footnotes, formatting functions, etc.); a tiny vanilla JavaScript runtime builds the HTML table from the spec on page load. No 'sass', no 'V8', no 'htmlwidgets' just base R and 'xfun' ('htmltools' is used only for the optional Shiny binding).