Quickest way to confirm an item exists with the Core Service

Question

I want to confirm if an item exists in Tridion with the Core Service. I'm building a URI myself, using a parent Page item ID and the local Publication ID, and want to try to get it.

I see 2 methods available in the Core Service API that might be of help. Which one would be the most efficient to confirm the item does exist?

string localUri = client.TryGetTcmUri(componentUri, publicationUri);
var page = client.TryRead(componentUri, null);

Answer 1

How about:

client.IsExistingObject(uri);