Which way is more effective?

Posted by Danny Chen on Stack Overflow See other posts from Stack Overflow or by Danny Chen
Published on 2010-05-06T02:49:53Z Indexed on 2010/05/06 2:58 UTC
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I have a huge IEnumerable(suppose the name is myItems), which way is more effective?

Solution 1: Filter it first then ForEach.

Array.ForEach(myItems.Where(FILTER-IT-HERE).ToArray(),MY-ACTION);

Solution 2: Do RETURN in MY-ACTION if the item is not up to the mustard.

Array.ForEach(myItems.ToArray(),MY-ACTION-WITH-FILTER);

Is one of them always better than another? Or any other good suggestions? Thanks in advance.

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