How to create a new object and get its saved object in MongoDB?

For this, use save() in MongoDB. Following is the syntax −

var anyVaribaleName=yourValue db.anyCollectionName.save(yourVariableName); yourVariableName;

Let us first create an object for our example −

> var studentDetails={"StudentName":"Chris","ListOfMarks":[56,78,89],"ListOfSubject":["MySQL","Java","MongoDB"]};

Let us save the above created object “studentDetails” −

> db.demo40.save(studentDetails); WriteResult({ "nInserted" : 1 })

Let us display the value −

> studentDetails;

This will produce the following output −

{    "StudentName" : "Chris",    "ListOfMarks" : [       56,       78,       89    ],    "ListOfSubject" : [       "MySQL",       "Java",       "MongoDB"    ],    "_id" : ObjectId("5e177757cfb11e5c34d898e2") }