Is name of anonymous array json field just empty string?

Server returns json array like this [{id:1,x:1,y:2},{id:2,x:1,y:2},{id:3,x:1,y:2}]
Can I acces to array just by a code bellow (with empty name)?

TArray> objArray = JsonObject->GetArrayField(TEXT(""));

anonymous arrays are not suported, so I had to add a name. Also json validator in UE 4 accepts only jsons contained in {} brackets