this._config.onCheck.call(item);\n    }\n\n    unCheck (item) {\n      this._config.onUnCheck.call(item);\n    }\n\n    // Private\n\n    _init() {\n      var that = this\n      $(Selector.DATA_TOGGLE).find('input:checkbox:checked').parents('li').toggleClass(ClassName.TODO_LIST_DONE)\n      $(Selector.DATA_TOGGLE).on('change', 'input:checkbox', (event) => {\n        that.toggle($(event.target))\n      })\n    }\n\n    // Static\n\n    static _jQueryInterface(config) {\n      return this.each(function () {\n    ...

L614:            if (this.endDate == null) return;
L615:
L616:            this.calculateChosenLabel();
L617:        },
L618:
L619:        renderCalendar: function(side) {
L620:
L621:            //
L622:            // Build the matrix of dates that will populate the calendar
L623:            //
L624:
L625:            var calendar = side == 'left' ? this.leftCalendar : this.rightCalendar;
L626:            var month = calendar.month.month();
L627:            var year = calendar.month.year();
...