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Alex Rivera
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I am running a test. It looks like: method 1) List<int> = new List<int>{1,2,4, .....} //assume 1000k var result ErrorCodes.Where(x => ReturnedErrorCodes.Contains(x)).First(); method 2) List<int> = new List<int>{1,2,4, .....} //assume 1000k var result = ErrorCodes.Where(x => ReturnedErrorCodes.Contains(x)).ToArray()[0]; Why is method 2 is so slow compared to method 1?
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