Given the following object graph:

{
"children": [
    {
        "child": {
            "pets": [
                {
                    "pet": {
                        "name": "fido"
                    }
                },
                {
                    "pet": {
                        "name": "fluffy"
                    }
                }
            ]
        }
    },
    {
        "child": {
            "pets": [
                {
                    "pet": {
                        "name": "spike"
                    }
                }
            ]
        }
    }
]

}

What would be a nice one-liner (or two) to collect the names of my grandchildren's pets? The result should be ["fido", "fluffy", "spike"]

I don't want to write custom methods for this... I'm looking for something like the way jQuery works in selecting dom nodes, where you can just give it a CSS-like path and it collects them up for you.

I would expect the expression path to look something like "children child pets pet name"