Question: answer by the keyboard e) With the help of code snippets (i.e. JSON), what is the result of the following JavaScript statement (ie the aggregate

answer by the keyboard

e) With the help of code snippets (i.e. JSON), what is the result of the following JavaScript statement (ie the aggregate function)? db.course.aggregate ($group: 1 _id: null, "credits": { $sum: "$credits" ) ) ) "_id" : "C1", "code" : "CI" "name": "JavaFX", "credits": 20, "id": "02", "code" : "02", "name": "Oracle", "credits": 30, [5]

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