Program to scan an entire mongo database for a certain fieldname (and check recursevely in embedded docs)

mongoFieldNameScan.js

var collections = db.getCollectionNames();

//print(collections);

collections.forEach(function(col) {
    
    function isEmpty(obj) {
    for(var prop in obj) {
        if(obj.hasOwnProperty(prop))
            return false;
    }

    return true;
    }
    
function professioneScan(col) {
    
    var result = [];
    var count = 0;
    db.getCollection(col).find({}).forEach(function scan(doc) {
        for(var key in doc) {
            print(typeof doc[key]);
            /*if((typeof doc[key]) === 'object') {
                scan(doc[key]);
            } else {
                if(key==='professione') {
                    result[col] = {};
                    result[col][key]=count;
                    count++;
                }
            }*/
        }
    });
    if(!isEmpty(result))
        print(result);
}
    professioneScan(col);
});