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Assigning out/ref parameters in Moq

...eems to work for me. public interface IService { void DoSomething(out string a); } [TestMethod] public void Test() { var service = new Mock<IService>(); var expectedValue = "value"; service.Setup(s => s.DoSomething(out expectedValue)); string actualValue; service....
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Can I concatenate multiple MySQL rows into one field?

... If you want to sort hobbies in the resulting imploded string use: SELECT person_id, GROUP_CONCAT(hobbies ORDER BY hobbies ASC SEPARATOR ', ') FROM peoples_hobbies GROUP BY person_id – Jan Mar 8 '17 at 15:38 ...
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Moving average or running mean

... UPD: more efficient solutions have been proposed by Alleo and jasaarim. You can use np.convolve for that: np.convolve(x, np.ones((N,))/N, mode='valid') Explanation The running mean is a case of the mathematical operation of convolution. For the running mean, you slide...
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How to update only one field using Entity Framework?

... DbContext (introduced in EF 4.1): public void ChangePassword(int userId, string password) { var user = new User() { Id = userId, Password = password }; using (var db = new MyEfContextName()) { db.Users.Attach(user); db.Entry(user).Property(x => x.Password).IsModified = true; d...
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What uses are there for “placement new”?

... on a pre-allocated buffer takes less time): char *buf = new char[sizeof(string)]; // pre-allocated buffer string *p = new (buf) string("hi"); // placement new string *q = new string("hi"); // ordinary heap allocation You may also want to be sure there can be no allocation failure at ...
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C# Thread safe fast(est) counter

...read th = new Thread(GenerateNumbers); th.Name = "Thread" + ctr.ToString(); th.Start(); } cte.Signal(); cte.Wait(); Console.WriteLine(); Console.WriteLine("Total midpoint values: {0,10:N0} ({1:P3})", totalMidpoint, totalMidpoin...
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How do I escape ampersands in batch files?

...at The command echo this ^& that > tmp also works, writing the string to file "tmp". However, before a pipe echo this ^& that | clip the ^ is interpreted completely differently. It tries to write the output of the two commands "echo this" and "that" to the pipe. The echo will w...
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What is the default initialization of an array in Java?

... What about a String array? – Zac Dec 23 '17 at 7:05 1 ...
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How to convert enum value to int?

...ze it fails myEnumValue = MyEnum.valueOf(myInt); the arg has to be of type String - or is there something I am missing? – likejudo Sep 10 '14 at 22:58 ...
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What's the best way to determine the location of the current PowerShell script?

...hen called inside a function or script block, the former returns the empty string, whereas the latter returns the function body's / script block's definition as a string (a piece of PowerShell source code). – mklement0 Sep 4 '19 at 14:24 ...