$unwind

• $unwind

`` db.scores.aggregate( [ { $unwind: "$scores" } ] );

{ "result": [ { "_id": ObjectId("5988c63dd474ca272db3fb2e"), "name": "foo", "scores": 2 }, { "_id": ObjectId("5988c63dd474ca272db3fb2e"), "name": "foo", "scores": 4 }, { "_id": ObjectId("5988c63dd474ca272db3fb2e"), "name": "foo", "scores": 6 }, { "_id": ObjectId("5988c676d474ca272db3fb2f"), "name": "bar", "scores": 9 }, { "_id": ObjectId("5988c676d474ca272db3fb2f"), "name": "bar", "scores": 5 }, { "_id": ObjectId("5988c676d474ca272db3fb2f"), "name": "bar", "scores": 3 }, { "_id": ObjectId("5988c676d474ca272db3fb2f"), "name": "bar", "scores": 1 } ], "ok": 1 }

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