Function getDaysInMonth

codebase/sources/dhtmlxscheduler.js:6952–6954

(year, month)

        }
      });
      function getDaysInMonth(year, month) {
        return new Date(year, month + 1, 0).getDate();
      }
      scheduler2.event(lightbox, "click", function(e) {
        if (e.target.closest(".dhx_lightbox_day_select") || e.target.closest(".dhx_lightbox_month_select")) {
          const monthSelectNodes = lightbox.querySelectorAll(".dhx_lightbox_month_select");