Deep cloning and deep equality of a JsonNode

Starting with .NET 8, several new methods have been added to the JsonNode class to help with the deep cloning of nodes and checking whether they are equal or not.

public partial class JsonNode
{
    public JsonNode DeepClone();

    public static bool DeepEquals(JsonNode? node1, JsonNode? node2);
}

The DeepClone() method will create and return a deep clone of the current node and all of its descendants.

On the other hand, DeepEquals() will compare the property values of the node and all of its descendants and return true only when their JSON representations are equivalent. An interesting thing to note here is that DeepEquals is not an instance method like you would have been used to with Object.Equals(...), nor is it an extension method – so you cannot simply node1.DeepEquals(node2). You will always need to explicitly call the static method like this: JsonNode.DeepEquals(node1, node2).