update,

catmk2/task1/utils/isCellEmpty.js

@@ -0,0 +1,12 @@
+function isCellEmpty(cell) {
+  var output = { state: "init", debug: {}, error: {} };
+  try {
+    // console.log("isCellEmpty:" + cell.getValue());
+    var temp = cell.getValue().toString().trim();
+    return temp == "";
+  } catch (error) {
+    console.log("isCellEmpty error");
+    output = { ...output, error };
+    console.log(output);
+  }
+}