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count vs length vs size in a collection

... Size() tends to refer to the size of the collection, often this can be different from the length in cases like vectors (or strings), there may be 10 characters in a string, but storage is reserved for 20. It also may refer to number of elements - check source/documentation. Capacity() - used to ...
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How to delete a file after checking whether it exists

... This is pretty straightforward using the File class. if(File.Exists(@"C:\test.txt")) { File.Delete(@"C:\test.txt"); } As Chris pointed out in the comments, you don't actually need to do the File.Exists check since File.Delete doesn't throw an exception if the file doesn'...
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Efficiency of purely functional programming

...system. There are a few caveats to be made about this paper. The most significant is that it does not address lazy functional languages, such as Haskell. Bird, Jones and De Moor [1997] demonstrate that the problem constructed by Pippenger can be solved in a lazy functional language in O(n) time, bu...
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How to validate GUID is a GUID

How to determine if a string contains a GUID vs just a string of numbers. 9 Answers 9 ...
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How SignalR works internally?

...nection supported by server and client (you can also force it to use a specific transport). That's the high level. If you want to see how each transport is implemented, you can look at the source code. There's also client code for each transport: https://github.com/SignalR/SignalR/tree/master/src...
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IntelliJ - Convert a Java project/module into a Maven project/module

... check the "Maven" technology. (This also creates a pom.xml for you to modify.) If you mean adding source repository elements, I think you need to do that manually–not sure. Pre-IntelliJ 13 this won't convert the project to the Maven Standard Directory Layout, 13+ it will. ...
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What are the differences between mocks and stubs on Rhino Mocks?

...'t play enough with this and usually use mocks, but I wonder what are the differences between this two and when to use one or the other on Rhino Mocks. ...
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What is the purpose of the vshost.exe file?

... @Milen, msdn.microsoft.com/en-us/library/ms242202.aspx mentioned the different result of AppDomain.CurrentDomain.FriendlyName with and without host process. – Thomson Aug 14 '14 at 9:43 ...
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How are cookies passed in the HTTP protocol?

...wing in its response header to set a cookie field. Set-Cookie:name=value If there is a cookie set, then the browser sends the following in its request header. Cookie:name=value See the HTTP Cookie article at Wikipedia for more information. ...
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Controlling mouse with Python

.../questions/5892297/… and make sure to put sudo in front of your commands if you have permission problems. – retodaredevil Nov 15 '17 at 4:30 7 ...