get array values mongodb code example

Example 1: mongodb array field contains

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

Example 2: how to get array object value in mongodb

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

Example 3: how to get array object value in mongodb

db.test.aggregate([
    {$match: {'shapes.color': 'red'}},
    {$project: {
        shapes: {$filter: {
            input: '$shapes',
            as: 'shape',
            cond: {$eq: ['$$shape.color', 'red']}
        }},
        _id: 0
    }}
])

Example 4: find string element in an array mongodb

db.articles.find({
    "stock.country" : "01",
    "stock.warehouse.code" : "02"
}).pretty();