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Extension method to test whether a string is null or empty or whitespace

/ Published in: C#
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  1. public static bool IsNullOrEmpty(this string input)
  2. {
  3.     if (string.IsNullOrEmpty(input))
  4.         return true;
  5.  
  6.     return string.IsNullOrEmpty(input.Trim());
  7. }

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