how to get value from array in mongodb code example

Example 1: mongodb find element in array

db.yourCollection.find( { array: "element" } )

Example 2: mongodb array field contains

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

Example 3: mongoose query using an arry

var query = PUser.find({'userID': {$in:array}});

Example 4: find string element in an array mongodb

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