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Harald Carlsten
7,806 Pointss => s.Length.IsEven(). I get a error message saying "Object does not contain a definition for "Length"".
In the last part of the video "Functional Programming", in the workshop "Extension methods", following along programming in Visual Studio, I get an error message saying "Object does not contain a definition for "Length" accepting a first argument of type "object" could be found (are you missing a using directive or an assembly reference). Someone knows why?
2 Answers
Steven Parker
231,261 PointsIn the video, "s" represents a string, but based on the error message you show here, it sounds like in your code it represents some other object which has no "Length" property.
For a complete analysis and more specific answer, show your entire code, or better yet, make a snapshot of your workspace and post the link to it here.
Harald Carlsten
7,806 PointsYes, you were right. I watched the Creating Datastructures - course and understood the mistake. It had put together the generic Random-method wrongly.
public static T GetRandomItem<T>(this List<T> list) { return list[_random.Next(0, list.Count())]; }
I didn't put the T on the right places and then the method generated an object instead of a string.