Function Rt

codebase/dhtmlxscheduler.es.js:1146–1148

(e)

  return a && (s = a.style.height == "0px"), s = s || !e.offsetHeight, i != "none" && t != "hidden" && !s;
}
function Rt(e) {
  return !isNaN(e.getAttribute("tabindex")) && 1 * e.getAttribute("tabindex") >= 0;
}
function Pt(e) {
  return !{ a: !0, area: !0 }[e.nodeName.loLowerCase()] || !!e.getAttribute("href");
}