Fix undefined error when checkpoints is empty (#7567)

jupyter · Jan 24, 2025 · 8b3b5b3 · 8b3b5b3
1 parent 1f0ab83
commit 8b3b5b3
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/packages/notebook-extension/src/index.ts b/packages/notebook-extension/src/index.ts
@@ -124,7 +124,7 @@ const checkpoints: JupyterFrontEndPlugin<void> = {
       context?.fileChanged.connect(onChange);
 
       const checkpoints = await context?.listCheckpoints();
-      if (!checkpoints) {
+      if (!checkpoints || !checkpoints.length) {
         return;
       }
       const checkpoint = checkpoints[checkpoints.length - 1];