Improve click-scroll functionality by adding checks for section existence before accessing offsets, enhancing robustness against missing elements. Update scroll event handling for better performance and reliability.

js/click-scroll.js

@@ -5,7 +5,9 @@ var sectionArray = [1, 2, 3, 4, 5];
 
 $.each(sectionArray, function (index, value) {
   $(document).scroll(function () {
-    var offsetSection = $("#" + "section_" + value).offset().top - 90;
+    var section = $("#" + "section_" + value);
+    if (section.length) {  // Check if section exists
+      var offsetSection = section.offset().top - 90;
       var docScroll = $(document).scrollTop();
       var docScroll1 = docScroll + 1;
 
@@ -15,12 +17,15 @@ $.each(sectionArray, function (index, value) {
         $(".navbar-nav .nav-item .nav-link").eq(index).addClass("active");
         $(".navbar-nav .nav-item .nav-link").eq(index).removeClass("inactive");
       }
+    }
   });
 
   $(".click-scroll")
     .eq(index)
     .click(function (e) {
-      var offsetClick = $("#" + "section_" + value).offset().top - 90;
+      var section = $("#" + "section_" + value);
+      if (section.length) {  // Check if section exists
+        var offsetClick = section.offset().top - 90;
         e.preventDefault();
         $("html, body").animate(
           {
@@ -28,6 +33,7 @@ $.each(sectionArray, function (index, value) {
           },
           300
         );
+      }
     });
 });