I will give you a hint. Look at $objectToArray then $match on v : null.
But that is all I will give you until you do your part to keep this forum useful. And your part is to supply closure for your other threads as requested in my previous post.
I will give you a hint. Look at $objectToArray then $match on v : null.
But that is all I will give you until you do your part to keep this forum useful. And your part is to supply closure for your other threads as requested in my previous post.