linq - And difference between FirstOrDefault(func) & Where(func).FirstOrDefault()?

Question

Is there any difference between

 DataFeedManager.LoadAllDataFeeds().FirstOrDefault(d => d.ItemID == itemId);

and

DataFeedManager.LoadAllDataFeeds().Where(d=>d.ItemID = itemId).FirstOrDefault();

Is there a particular reason to prefer one over the other?

Answer 1

Prefer the first for brevity if you're comfortable with it.

Prefer the second for clarity if you're not as familiar with the various overloads available.

(Where "you" is really "everyone working on the code" of course.)