I'm executing a simple insertOne (using the Promise version of the API) and looking at the result object with JSON.stringify(), but instead of an object with 5 properties (insertedCount, ops, insertedId, connection, result as specified here), I'm seeing an object with only 2 properties (ok, n). Those two are the properties of "insertOneWriteOpResult.result", but why is JSON.stringify only displaying that sub-property instead of the full object? It causes confusion when using the insertOneWriteOpResult object.

const client = await MongoClient.connect(my_connection_string);
return client.db('my-db').collection('my-collection')
    .insertOne(myDoc)
    .then(resultObject => {

         // The following line prints {"n":1,"ok":1}
         console.log(JSON.stringify(resultObject));

         // But the following line prints undefined
         console.log(resultObject.ok);

         // And this one correctly prints 1
         console.log(resultObject.result.ok);
     });