Handle zero length sample arrays (#1728)

igvteam · Nov 3, 2023 · 5d1ff4d · 5d1ff4d
1 parent 4135162
commit 5d1ff4d
Showing 1 changed file with 7 additions and 2 deletions.
diff --git a/js/trackView.js b/js/trackView.js
@@ -378,15 +378,20 @@ class TrackView {
     repaintSampleInfo() {
         if (typeof this.track.getSamples === 'function') {
             const samples = this.track.getSamples()
-            this.sampleInfoViewport.repaint(samples)
+            if (samples.names && samples.names.length > 0) {
+                this.sampleInfoViewport.repaint(samples)
+            }
         }
     }
 
     repaintSamples() {
 
         if (typeof this.track.getSamples === 'function') {
             const samples = this.track.getSamples()
-            this.sampleNameViewport.repaint(samples)
+            if (samples.names && samples.names.length > 0) {
+                this.sampleNameViewport.repaint(samples)
+            }
+
         }
     }