angular .module('mwl.calendar.docs') .controller('CellModifierCtrl', function(moment) { var vm = this; vm.events = []; vm.calendarView = 'month'; vm.viewDate = moment().startOf('month').toDate(); vm.cellModifier = function(cell) { console.log(cell); if (cell.label % 2 === 1 && cell.inMonth) { cell.cssClass = 'odd-cell'; } cell.label = '-' + cell.label + '-'; }; });