THANK YOU to all of you for taking time to explain my question. I
was not clear about the new char[]{'\\'} and it makes sense now.Ramos - First off sorry for not using the word PLEASE. I would use a lot of these before in the beginning but what I understand from the forums online is that asking a question clearly is more/equally important. But I should have said PLEASE and I apologize for not using it. On Feb 23, 12:00 am, Theraot <[email protected]> wrote: > Hello, > > To answer you, the function takes an string and returns what it says > after its last "\". > > It can be replaced with this equivalent potentially-more-clear less- > memory-expensive code: > > public static string ExtractUserName(string path) > { > //Adding 1 to avoid returning the "\" and also to avoid an > exception if the string doesn't contain any "\". > return path.Substring(path.LastIndexOf('\\') + 1); > } > > Take care of not passing null, on either version, because it will > throw an exception in that situation. > > I recomend to add the following code at the begin of the method unless > you want / expect the exception I mentioned above: > if (String.IsNullOrEmpty(path)) > { > return String.Empty; > } > Another option is to surround the code with a try, which in .NET > generated a faster code, as try is inexpensive in .NET (this is not > true in others platforms such as Java), but programming for the > exception is usually harder to undestand. > > Also make '\\' a constant. > > And for such weird* question, can you please add a please next time? > thanks. > *Why this question is weird: because it makes me feel like if I were > on an exam, and not like I were helping or solving a problem. Perhaps > more context would help too. > > PD: can anybody tell me how a path comes to give an user name? which > is what I can tell from the naming of the method. > > Cheers! > Al J. Ramos > > On 22 feb, 11:01, Learner <[email protected]> wrote: > > > Hi, > > > Can some one explain the below function > > > public static string ExtractUserName(string path) > > { > > string[] userPath = path.Split(new char[] { '\\' }); > > return userPath[userPath.Length - 1]; > > } > > > Thanks, > > > L
