There's no Easy way to check that an array exists and has length

[neilbaylorrulez]

This is how I currently query to find a non empty array

collection
        .findAll({
            theArray: {$exists: true},
            $not: {theArray: $length: 0}
        })

It would be great if there was another way to do this or atleast some syntactic sugar that would let me do something like:

collection
        .findAll({
            theArray: $gt: 0
        })

or maybe

collection
        .findAll({
            theArray: $length: $gt: 0
        })

[balupton]

This is a great idea. I'll happily accept pull requests for this.