Retrieve a value from double nested array in Node.js from Mongodb

"name" : "UniqueCompany 
"array1" : [
                {
                        "company" : {
                                "name" : "string1"
                        }
                },
                {
                        "company" : {
                                "name" : "string2"
                        }
                },
                {
                        "company" : {
                                "name" : "string3"
                        }
                },
                {
                        "company" : {
                                "name" : "string4"
                        }
                },
                {
                        "company" : {
                                "name" : "string5"
                        }
                }

I want to retrieve all name values of the Unique Company in one set(all combined to one result). How will I write the query to mongo using node.js. I tried this but did not work:

collection.aggregate([
    {
        $match: {
            "name": UniqueCompany
    },
    {
        $group :  {
            _id : {name : "$name"},
            companies : {$push: "$array1.company.name"}
        }
    }
])

Thanks in advance. This is a practice problem that I was doing and I am always stuck when dealing with double nested array.

via The_Programmer