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Many times, developers use List.Count() to check whether a list has data or is empty, before iterating. Here, we will compare the execution time of List.Count() and List.Any().

List.Count()
  1. Stopwatch watch = new Stopwatch();
  2. List < string > strs = new List < string > () {
  3. "Akshay",
  4. "Patel",
  5. "Panth",
  6. "Patel"
  7. };
  8. watch.Start();
  9. if (strs.Count() > 0) {}
  10. Console.WriteLine("List.Count()-{0}", watch.Elapsed);
List.Any()
  1. watch.Restart();
  2. if (strs.Any()) {}
  3. Console.WriteLine("List.Any() - {0}", watch.Elapsed);
Result
List.Count() Vs List.Any()

The result suggests that we should use List.Any() over List.Count() wherever possible.