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Searching for this in Google: list to enumerable, getting two results to the same question, on SO.

  1. http://stackoverflow.com/questions/3410590/when-to-use-each-of-t-listt-ienumerablet
  2. http://stackoverflow.com/questions/3410590/when-to-use-each-of-t-listst-ienumerablet

I guess that this is because the different in the question title.

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up vote 1 down vote accepted

Google needs to resolve this, not us. The ID is unique.

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1  
Of course. Since you have the canonical tag. – stacker Aug 8 '10 at 16:16
    
+1 for the canonical tag. So this is no problem. – fwaechter Aug 9 '10 at 8:57

Initially, the title of this question was “When to use each of T[], Lists<T>, IEnumerable<T>?”. 5 minutes later, the Lists<T> was fixed to List<T>. This explains the liststlistt in the URL.

I don't think it's a [bug] on SO's side. It's Google that doesn't know the two links point to the same page. But both of them will reach the same page, so it shouldn't be a big problem.

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Um, I never said anything like that. I said 'the crawler is just self-tuning to make search results as "fresh" as possible without trying to hit every web site in the world every 20 seconds' which isn't the same thing at all. – Jon Skeet Aug 9 '10 at 6:51

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