String to non-array json

 var json = `{
    "results": [
        {
            "address_components": [
                {
                    "long_name": "Ireland",
                    "short_name": "Ireland",
                    "types": [
                        "establishment",
                        "natural_feature"
                    ]
                }
            ],
            "formatted_address": "Ireland",
            "geometry": {
                "bounds": {
                    "northeast": {
                        "lat": 55.38294149999999,
                        "lng": -5.431909999999999
                    },
                    "southwest": {
                        "lat": 51.4475448,
                         "lng": -10.4800237
                    }
                }
            }
        }
   ],
   "status" : "OK"
}`;
var data = JSON.parse(json);
var bounds = data.results[0].geometry.bounds;
var bound = bounds.northeast || bounds.southwest;
console.log(bound.lat, bound.lng);

If you know northeast is always an option you can simplify this to:

console.log(data.results[0].geometry.bounds.northeast);

That will give you your lat and lng.