mongodb search model for array element code example

Example 1: how to get array object value in mongodb

db.products.aggregate([
    {$unwind: "$ratings"},
    {$match: {'ratings.user': ObjectId("5f6e2e0b70eb0208fc8401a1")}}
])

Example 2: mongodb array field contains

db.inventory.find( { tags: { $all: ["red", "blank"] } } )

Example 3: mongo array

db.inventory.find( { tags: ["red", "blank"] } )