refactor: save element to var

Author: andrea-kyurchiev

assets/js/script.js

@@ -4,10 +4,11 @@
   // Preloader js    
   $(window).on('load', function () {
     $('.preloader').fadeOut(100);
-    if(document.getElementById('calendar-container')){
+    var calendarContainer = document.getElementById('calendar-container');
+    if(calendarContainer){
       const timezone = Intl.DateTimeFormat().resolvedOptions().timeZone 
       const html = `<iframe src="https://calendar.google.com/calendar/embed?src=c_62694f414055ac569e5cb12dafbb0890ca22f3640b177a4b10b53171fbc9bdd4%40group.calendar.google.com&ctz=${timezone}" style=" border:0 " width="800" height="600" frameborder="0" scrolling="no"></iframe>`
-      document.getElementById('calendar-container').innerHTML = html;
+      calendarContainer.innerHTML = html;
     }
   });