diff --git a/scripts/pi-hole/js/customdns.js b/scripts/pi-hole/js/customdns.js
index 572d844696..87d90917eb 100644
--- a/scripts/pi-hole/js/customdns.js
+++ b/scripts/pi-hole/js/customdns.js
@@ -30,7 +30,7 @@ function showAlert(type, message) {
       return;
   }
 
-  if (messageElement != null) messageElement.html(message);
+  if (messageElement !== null) messageElement.html(message);
 
   alertElement.fadeIn(200);
   alertElement.delay(8000).fadeOut(2000);
diff --git a/scripts/pi-hole/js/db_lists.js b/scripts/pi-hole/js/db_lists.js
index 1b33643a78..c4a8c2f845 100644
--- a/scripts/pi-hole/js/db_lists.js
+++ b/scripts/pi-hole/js/db_lists.js
@@ -97,7 +97,7 @@ function updateTopClientsChart() {
       .parent()
       .remove();
     var clienttable = $("#client-frequency").find("tbody:last");
-    var client, percentage, clientname, clientip;
+    var client, percentage, clientname;
     var sum = 0;
     for (client in data.top_sources) {
       if (Object.prototype.hasOwnProperty.call(data.top_sources, client)) {
@@ -117,10 +117,8 @@ function updateTopClientsChart() {
         if (client.indexOf("|") > -1) {
           var idx = client.indexOf("|");
           clientname = client.substr(0, idx);
-          clientip = client.substr(idx + 1, client.length - idx);
         } else {
           clientname = client;
-          clientip = client;
         }
 
         var url = clientname;
diff --git a/scripts/pi-hole/js/db_queries.js b/scripts/pi-hole/js/db_queries.js
index 15af7cc9d6..57bad1d9b5 100644
--- a/scripts/pi-hole/js/db_queries.js
+++ b/scripts/pi-hole/js/db_queries.js
@@ -264,63 +264,54 @@ $(document).ready(function() {
 
   tableApi = $("#all-queries").DataTable({
     rowCallback: function(row, data) {
-      var blocked, fieldtext, buttontext, color;
+      var fieldtext, buttontext, color;
       switch (data[4]) {
         case 1:
-          blocked = true;
           color = "red";
           fieldtext = "Blocked (gravity)";
           buttontext =
             '<button class="text-green text-nowrap"><i class="fas fa-check"></i> Whitelist</button>';
           break;
         case 2:
-          blocked = false;
           color = "green";
           fieldtext = "OK <br class='hidden-lg'>(forwarded)";
           buttontext =
             '<button class="text-red text-nowrap"><i class="fa fa-ban"></i> Blacklist</button>';
           break;
         case 3:
-          blocked = false;
           color = "green";
           fieldtext = "OK <br class='hidden-lg'>(cached)";
           buttontext =
             '<button class="text-red text-nowrap"><i class="fa fa-ban"></i> Blacklist</button>';
           break;
         case 4:
-          blocked = true;
           color = "red";
           fieldtext = "Blocked <br class='hidden-lg'>(regex/wildcard)";
           buttontext =
             '<button class="text-green text-nowrap"><i class="fas fa-check"></i> Whitelist</button>';
           break;
         case 5:
-          blocked = true;
           color = "red";
           fieldtext = "Blocked <br class='hidden-lg'>(blacklist)";
           buttontext =
             '<button class="text-green text-nowrap"><i class="fas fa-check"></i> Whitelist</button>';
           break;
         case 6:
-          blocked = true;
           color = "red";
           fieldtext = "Blocked <br class='hidden-lg'>(external, IP)";
           buttontext = "";
           break;
         case 7:
-          blocked = true;
           color = "red";
           fieldtext = "Blocked <br class='hidden-lg'>(external, NULL)";
           buttontext = "";
           break;
         case 8:
-          blocked = true;
           color = "red";
           fieldtext = "Blocked <br class='hidden-lg'>(external, NXRA)";
           buttontext = "";
           break;
         default:
-          blocked = false;
           color = "black";
           fieldtext = "Unknown";
           buttontext = "";
diff --git a/scripts/pi-hole/js/footer.js b/scripts/pi-hole/js/footer.js
index 72468a9fd3..1decdc68a6 100644
--- a/scripts/pi-hole/js/footer.js
+++ b/scripts/pi-hole/js/footer.js
@@ -34,6 +34,9 @@ function piholeChanged(action) {
       ena.show();
       dis.hide();
       break;
+
+    default:
+    // nothing
   }
 }
 
@@ -86,6 +89,9 @@ function piholeChange(action, duration) {
         }
       });
       break;
+
+    default:
+    // nothing
   }
 }
 
diff --git a/scripts/pi-hole/js/index.js b/scripts/pi-hole/js/index.js
index 157cf256ee..6d1be22838 100644
--- a/scripts/pi-hole/js/index.js
+++ b/scripts/pi-hole/js/index.js
@@ -7,8 +7,8 @@
 
 // Define global variables
 /* global Chart:false, updateSessionTimer:false */
-var timeLineChart, forwardDestinationChart;
-var queryTypePieChart, forwardDestinationPieChart, clientsChart;
+var forwardDestinationChart; // eslint-disable-line no-unused-vars
+var timeLineChart, queryTypePieChart, forwardDestinationPieChart, clientsChart;
 
 function padNumber(num) {
   return ("00" + num).substr(-2, 2);
@@ -723,9 +723,13 @@ function updateSummaryData(runOnce) {
       "unique_clients"
     ].forEach(function(today) {
       var todayElement = $("span#" + today);
-      todayElement.text() !== data[today] &&
-        todayElement.text() !== data[today] + "%" &&
+
+      if (
+        todayElement.text() !== data[today] &&
+        todayElement.text() !== data[today] + "%"
+      ) {
         $("span#" + today).addClass("glow");
+      }
     });
 
     if (Object.prototype.hasOwnProperty.call(data, "dns_queries_all_types")) {