Function getDaysInMonth

codebase/sources/dhtmlxscheduler.es.js:6948–6950

(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");