Address comments

minggangw · minggangw · commit 2039bc910e5b · 2025-05-06T12:35:54.000+08:00
diff --git a/lib/node.js b/lib/node.js
@@ -1096,7 +1096,7 @@ class Node extends rclnodejs.ShadowNode {
   countClients(serviceName) {
     if (DistroUtils.getDistroId() <= DistroUtils.getDistroId('humble')) {
       console.warn('countClients is not supported by this version of ROS 2');
-      return;
+      return null;
     }
     return rclnodejs.countClients(this.handle, serviceName);
   }
@@ -1109,7 +1109,7 @@ class Node extends rclnodejs.ShadowNode {
   countServices(serviceName) {
     if (DistroUtils.getDistroId() <= DistroUtils.getDistroId('humble')) {
       console.warn('countServices is not supported by this version of ROS 2');
-      return;
+      return null;
     }
     return rclnodejs.countServices(this.handle, serviceName);
   }

Original file line number	Diff line number	Diff line change
`@@ -1096,7 +1096,7 @@ class Node extends rclnodejs.ShadowNode {`
`1096`	`1096`	`countClients(serviceName) {`
`1097`	`1097`	`if (DistroUtils.getDistroId() <= DistroUtils.getDistroId('humble')) {`
`1098`	`1098`	`console.warn('countClients is not supported by this version of ROS 2');`
`1099`		`- return;`
	`1099`	`+ return null;`
`1100`	`1100`	`}`
`1101`	`1101`	`return rclnodejs.countClients(this.handle, serviceName);`
`1102`	`1102`	`}`
`@@ -1109,7 +1109,7 @@ class Node extends rclnodejs.ShadowNode {`
`1109`	`1109`	`countServices(serviceName) {`
`1110`	`1110`	`if (DistroUtils.getDistroId() <= DistroUtils.getDistroId('humble')) {`
`1111`	`1111`	`console.warn('countServices is not supported by this version of ROS 2');`
`1112`		`- return;`
	`1112`	`+ return null;`
`1113`	`1113`	`}`
`1114`	`1114`	`return rclnodejs.countServices(this.handle, serviceName);`
`1115`	`1115`	`}`