[{_id:ObjectId("634a67e2953469f7249c9a7f"),user:ObjectId("6348a56590b49a8313d434fa"),cartItems:[{_id:ObjectId("63494302fc6db508894ba109"),name:"Chola Bhatura",image:"https://www.indianhealthyrecipes.com/wp-content/uploads/2022/03/bhatura-recipe-680x1020.jpg.webp",qty:1,price:200},{_id:ObjectId("634941f3fc6db508894ba105"),name:"Poha",image:"https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcSuxnPaCuwhqgfnK3DfXFGelvKpfhjyDWpmkQ&usqp=CAU",qty:1,price:50}],totalQty:2,totalPrice:250,createdAt:"2022-10-15T07:57:22.941Z",updatedAt:"2022-10-15T09:57:29.734Z",__v:0}]

db.collection.update({_id:ObjectId("634a67e2953469f7249c9a7f"),"cartItems._id":ObjectId("634941f3fc6db508894ba105")},{"$set":{"cartItems.$.qty":10,"cartItems.$.price":100}},{"multi":false,"upsert":false})