diff --git a/assets/js/gamepad-tester.js b/assets/js/gamepad-tester.js
index 98d66210..551c598d 100644
--- a/assets/js/gamepad-tester.js
+++ b/assets/js/gamepad-tester.js
@@ -44,7 +44,7 @@ document.addEventListener('DOMContentLoaded', function() {
             // If there are other gamepads, select the first one
             const remainingIndices = Object.keys(gamepads);
             if (remainingIndices.length > 0) {
-                activeGamepadIndex = parseInt(remainingIndices[0]);
+                activeGamepadIndex = Number.parseInt(remainingIndices[0]);
                 gamepadSelector.value = activeGamepadIndex;
             } else {
                 stopGamepadLoop();
@@ -54,7 +54,7 @@ document.addEventListener('DOMContentLoaded', function() {
 
     // Event listener for gamepad selector change
     gamepadSelector.addEventListener('change', function() {
-        activeGamepadIndex = parseInt(this.value);
+        activeGamepadIndex = Number.parseInt(this.value);
         initGamepadButtons();
         initGamepadAxes();
     });
@@ -409,14 +409,14 @@ document.addEventListener('DOMContentLoaded', function() {
             const vibrationCapabilities = gamepadHelper.getVibrationCapabilities(gamepad);
             if (!vibrationCapabilities.supported) return;
 
-            const duration = parseInt(document.getElementById('vibration-duration').value);
+            const duration = Number.parseInt(document.getElementById('vibration-duration').value);
             let vibrationOptions = { duration };
 
             if (vibrationCapabilities.type === 'dual-rumble') {
-                vibrationOptions.weakMagnitude = parseFloat(document.getElementById('vibration-weak').value);
-                vibrationOptions.strongMagnitude = parseFloat(document.getElementById('vibration-strong').value);
+                vibrationOptions.weakMagnitude = Number.parseFloat(document.getElementById('vibration-weak').value);
+                vibrationOptions.strongMagnitude = Number.parseFloat(document.getElementById('vibration-strong').value);
             } else {
-                const magnitude = parseFloat(document.getElementById('vibration-magnitude').value);
+                const magnitude = Number.parseFloat(document.getElementById('vibration-magnitude').value);
                 vibrationOptions.weakMagnitude = magnitude;
                 vibrationOptions.strongMagnitude = magnitude;
                 vibrationOptions.magnitude = magnitude;
@@ -491,7 +491,7 @@ document.addEventListener('DOMContentLoaded', function() {
 
     // If we have gamepads already, start the loop
     if (Object.keys(gamepads).length > 0) {
-        activeGamepadIndex = parseInt(Object.keys(gamepads)[0]);
+        activeGamepadIndex = Number.parseInt(Object.keys(gamepads)[0]);
         updateStatus(`Gamepad ${gamepads[activeGamepadIndex].id} connected`);
         startGamepadLoop();
     }
diff --git a/assets/js/roadmap.js b/assets/js/roadmap.js
index 29cf4f20..b462a82e 100644
--- a/assets/js/roadmap.js
+++ b/assets/js/roadmap.js
@@ -86,9 +86,9 @@ document.addEventListener('DOMContentLoaded', function() {
                     labelEl.style.backgroundColor = `#${label.color}`;
 
                     // Determine if label text should be dark or light based on background
-                    const r = parseInt(label.color.substring(0, 2), 16);
-                    const g = parseInt(label.color.substring(2, 4), 16);
-                    const b = parseInt(label.color.substring(4, 6), 16);
+                    const r = Number.parseInt(label.color.substring(0, 2), 16);
+                    const g = Number.parseInt(label.color.substring(2, 4), 16);
+                    const b = Number.parseInt(label.color.substring(4, 6), 16);
                     const brightness = (r * 299 + g * 587 + b * 114) / 1000;
                     labelEl.style.color = brightness > 125 ? '#000' : '#fff';
 
@@ -173,9 +173,9 @@ document.addEventListener('DOMContentLoaded', function() {
                 labelEl.style.backgroundColor = `#${label.color}`;
 
                 // Determine if label text should be dark or light based on background
-                const r = parseInt(label.color.substring(0, 2), 16);
-                const g = parseInt(label.color.substring(2, 4), 16);
-                const b = parseInt(label.color.substring(4, 6), 16);
+                const r = Number.parseInt(label.color.substring(0, 2), 16);
+                const g = Number.parseInt(label.color.substring(2, 4), 16);
+                const b = Number.parseInt(label.color.substring(4, 6), 16);
                 const brightness = (r * 299 + g * 587 + b * 114) / 1000;
                 labelEl.style.color = brightness > 125 ? '#000' : '#fff';