Mikel Berger

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December 07, 2003

efficient empty string check

This is what I normally do and it is bad (not the best performance-wise)

foreach (string s in someCollection)
{
   if (s != "")
   {
      ...
   }
}

And this is bad because it creates a new instance of an empty string every time through the loop. The more efficient way is to do this

foreach (string s in someCollection)
{
   if (s.Length != 0)
   {
      ...
   }
}

via MSDN TV

Posted by mikel at December 7, 2003 02:29 PM

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