Update: For folks interested in learning ReactJS, a version is available at https://github.com/audreyt/500lines/blob/master/spreadsheet/as-react-livescript/main

Update: For folks interested in learning ReactJS, a version is available at https://github.com/audreyt/500lines/blob/master/spreadsheet/as-react-livescript/main.ls https://github.com/audreyt/500lines/blob/master/spreadsheet/... — the demo at https://audreyt.github.io/500lines/spreadsheet/as-react-livescript/ https://audreyt.github.io/500lines/spreadsheet/as-react-live... runs considerably faster than AngularJS, but takes 12 more lines of LiveScript.