Fix: Correct JavaScript syntax errors in event listeners

- Fixed misplaced closing braces in 7 event listeners
- Arrow functions were being closed too early (lines 4958, 4969, 6140, 6162, 6180, 6490, 6503)
- Corrected brace placement to properly wrap multi-line event handlers
- All event listeners now have proper null checks AND correct syntax
- Application now loads without JavaScript errors

FIX_ATTEMPTS.md

@@ -45,22 +45,36 @@ JavaScript execution errors due to null reference exceptions when trying to add
 **Result**: ❌ FAILED
 **Why Failed**: Didn't address the core ordering issue
 
-## Attempt 6: Inline Null Checks (SUCCESSFUL SOLUTION)
+## Attempt 6: Inline Null Checks (PARTIAL SUCCESS then FAILED)
 **Date**: 2026-01-01
 **Files**: `/tmp/inline_null_checks.py`, `/tmp/fix_remaining.py`
 **Approach**: Added inline null checks directly where event listeners are attached, without moving any code
+**Result**: ❌ BROKE JAVASCRIPT SYNTAX
+**Why Failed**: Python script incorrectly placed closing braces, breaking arrow functions
+**Specific Issue**: Lines 4958, 4969, 6140, 6162, 6180, 6490, 6503 had misplaced `}` that closed arrow functions too early
+
+## Attempt 7: Manual Syntax Fix (FINAL SOLUTION)
+**Date**: 2026-01-01
+**Approach**: Manually fixed all misplaced closing braces from the Python script
 **Result**: ✅ SUCCESS
 **How it worked**:
-- Wrapped each `getElementById().addEventListener` with:
+- Fixed pattern: Changed from:
+  ```javascript
+  addEventListener('click', () => {
+      statement1;
+  }  // WRONG - closes arrow function early
+      statement2;
+  });
+  ```
+  To:
   ```javascript
-  const element = document.getElementById('elementId');
-  if (element) {
-      element.addEventListener('event', handler);
-  }
+  addEventListener('click', () => {
+      statement1;
+      statement2;
+  });  // Correct placement
   ```
-- Kept all event listeners in their original locations
-- No function ordering issues
-- No duplicate event listeners
+- Fixed 7 event listeners: navConfirmYes, navConfirmNo, remeshBtn, remeshYes, remeshNo, resumeNavYes, resumeNavNo
+- All event listeners now properly wrapped with null checks AND correct syntax
 
 ## Current Status
 **Fixed**: Application is working correctly

index.html

@@ -4955,20 +4955,20 @@
         if (el_navConfirmYes) {
             el_navConfirmYes.addEventListener('click', () => {
                 document.getElementById('navConfirmDialog').style.display = 'none';
-        }
                 if (pendingDestination) {
                     setDestination(pendingDestination.track, pendingDestination.index);
                     pendingDestination = null;
                 }
             });
+        }
 
         const el_navConfirmNo = document.getElementById('navConfirmNo');
         if (el_navConfirmNo) {
             el_navConfirmNo.addEventListener('click', () => {
                 document.getElementById('navConfirmDialog').style.display = 'none';
-        }
                 pendingDestination = null;
             });
+        }
 
         // Press and hold handlers for navigation mode
         function startPressHold(e) {
@@ -6137,7 +6137,6 @@
             el_remeshBtn.addEventListener('click', () => {
                 if (selectedTracks.length === 0) {
                     updateStatus('Please select tracks to remesh first', 'error');
-        }
                     return;
                 }
 
@@ -6154,12 +6153,12 @@
                 ensurePopupInBody('remeshDialog');
                 document.getElementById('remeshDialog').style.display = 'flex';
             });
+        }
 
         const el_remeshYes = document.getElementById('remeshYes');
         if (el_remeshYes) {
             el_remeshYes.addEventListener('click', () => {
                 document.getElementById('remeshDialog').style.display = 'none';
-        }
 
                 // Get the spacing value from slider
                 const spacing = parseInt(remeshSlider.value);
@@ -6172,13 +6171,14 @@
                 // Clear selection after remeshing
                 clearSelection();
             });
+        }
 
         const el_remeshNo = document.getElementById('remeshNo');
         if (el_remeshNo) {
             el_remeshNo.addEventListener('click', () => {
                 document.getElementById('remeshDialog').style.display = 'none';
-        }
             });
+        }
 
         // Preview system
         const el_previewBtn = document.getElementById('previewBtn');
@@ -6192,17 +6192,18 @@
         const el_cancelPreviewBtn = document.getElementById('cancelPreviewBtn');
         if (el_cancelPreviewBtn) {
             el_cancelPreviewBtn.addEventListener('click', cancelPreview);
+        }
 
         // Live slider update during preview
         const mergeThreshold = document.getElementById('mergeThreshold');
         if (mergeThreshold) {
             mergeThreshold.addEventListener('input', (e) => {
                 document.getElementById('thresholdValue').textContent = e.target.value;
-        }
                 if (previewMode) {
                     updatePreview(parseInt(e.target.value));
                 }
             });
+        }
 
         // Anchor distance slider update
         const el_anchorDistance = document.getElementById('anchorDistance');
@@ -6486,7 +6487,6 @@
         if (el_resumeNavYes) {
             el_resumeNavYes.addEventListener('click', () => {
                 document.getElementById('resumeNavDialog').style.display = 'none';
-        }
                 // Restore saved navigation
                 const savedNav = localStorage.getItem('navMode');
                 if (savedNav === 'true') {
@@ -6494,15 +6494,16 @@
                     restoreDestination();
                 }
             });
+        }
 
         const el_resumeNavNo = document.getElementById('resumeNavNo');
         if (el_resumeNavNo) {
             el_resumeNavNo.addEventListener('click', () => {
                 document.getElementById('resumeNavDialog').style.display = 'none';
-        }
                 localStorage.removeItem('navDestination');
                 localStorage.removeItem('navMode');
             });
+        }
 
         // Auto-load default.kml with cache busting
         fetch('default.kml?t=' + Date.now())