michael-s-molina commented on a change in pull request #15583:
URL: https://github.com/apache/superset/pull/15583#discussion_r667969241



##########
File path: superset-frontend/src/dashboard/util/replaceUndefinedByNull.ts
##########
@@ -0,0 +1,31 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+import { cloneDeep } from 'lodash';
+
+export default function replaceUndefinedByNull(object: Object) {

Review comment:
       I totally agree with the unnecessary cloneDeep. Will fix that. 
   
   About the JSON serialization/deserialization I prefer the `deepClone` 
because it's faster. We already have benchmarks on this topic:
   
https://stackoverflow.com/questions/122102/what-is-the-most-efficient-way-to-deep-clone-an-object-in-javascript
 
   https://jsben.ch/bWfk9

##########
File path: superset-frontend/src/dashboard/util/replaceUndefinedByNull.ts
##########
@@ -0,0 +1,31 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+import { cloneDeep } from 'lodash';
+
+export default function replaceUndefinedByNull(object: Object) {

Review comment:
       I totally agree with the unnecessary `cloneDeep`. Will fix that. 
   
   About the JSON serialization/deserialization I prefer the `deepClone` 
because it's faster. We already have benchmarks on this topic:
   
https://stackoverflow.com/questions/122102/what-is-the-most-efficient-way-to-deep-clone-an-object-in-javascript
 
   https://jsben.ch/bWfk9

##########
File path: superset-frontend/src/dashboard/util/replaceUndefinedByNull.ts
##########
@@ -0,0 +1,31 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+import { cloneDeep } from 'lodash';
+
+export default function replaceUndefinedByNull(object: Object) {

Review comment:
       I totally agree with the unnecessary `cloneDeep`. Will fix that. 
   
   About the JSON serialization/deserialization I prefer the `cloneDeep` 
because it's faster. We already have benchmarks on this topic:
   
https://stackoverflow.com/questions/122102/what-is-the-most-efficient-way-to-deep-clone-an-object-in-javascript
 
   https://jsben.ch/bWfk9

##########
File path: superset-frontend/src/dataMask/reducer.ts
##########
@@ -128,6 +131,7 @@ const dataMaskReducer = produce(
             [],
           cleanState,
           draft,
+          undefined,

Review comment:
       This was a result of a previous refactor where I had an additional 
parameter but ended up reverting. Will remove it. Nice catch!




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