Javascript – sort an array of multiple objects of objects

I tried whith no success to sort an array of multiple objects of objects.

Here my database : 

var jsonDatas = [
    {
        "type": "Voiture",
        "items": [
            {
                "name": "Fiat Punto",
                "description": "Je suis une voiture",
                "price": 10000,
                "quantity": 2,
            }, 
            {
                "name": "Porsche 911",
                "description": "Je suis une belle voiture",
                "price": 80000,
                "quantity": 0,
            }, 
        ],
    },
    {
        "type": "Maison",
        "items": [
            {
                "name": "Villa sur la plage",
                "description": "Quelle belle vue",
                "price": 870000,
                "quantity": 1,
            }, {
                "name": "Maison à la campagne",
                "description": "Vive le calme",
                "price": 170000,
                "quantity": 3,
            }
        ],
    }

I want to sort items by name (obtain Fiat, Maison, Porsche, Villa) , problem is the type, because each time, it sort first the type then the products by type.

I tried this for example :

function sortDatasASC(){
  database.forEach(element =>
     element.items.sort((a, b) => (a.name > b.name) ? 1 : -1)),
  catalogFiltered();

If you have any ideas!?

Thanks in advance.