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What does “abstract over” mean?

...he two final examples a Set or some other foldable type. An example with a String and concatenation would also be pretty cool. – Daniel C. Sobral Jan 22 '11 at 22:48 1 ...
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Converting NSString to NSDate (and back again)

How would I convert an NSString like " 01/02/10 " (meaning 1st February 2010) into an NSDate ? And how could I turn the NSDate back into a string? ...
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How can I do an asc and desc sort using underscore.js?

...unction(num){ return num * -1; }); // [3, 2, 1] If you're sorting by strings not numbers, you can use the charCodeAt() method to get the unicode value. //Descending Order Strings: _.sortBy(['a', 'b', 'c'], function(s){ return s.charCodeAt() * -1; }); ...
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How do I call ::std::make_shared on a class with only protected or private constructors?

...and doesn't require a derived class: #include <memory> #include <string> class A { protected: struct this_is_private; public: explicit A(const this_is_private &) {} A(const this_is_private &, ::std::string, int) {} template <typename... T> static ::std:...
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C# 4.0 optional out/ref arguments

...ters, and which just calls your current method. public bool SomeMethod(out string input) { ... } // new overload public bool SomeMethod() { string temp; return SomeMethod(out temp); } If you have C# 7.0, you can simplify: // new overload public bool SomeMethod() { return SomeMetho...
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Which method performs better: .Any() vs .Count() > 0?

...: class TestTable { [Key] public int Id { get; set; } public string Name { get; set; } public string Surname { get; set; } } Test code: class Program { static void Main() { using (var context = new TestContext()) { context.Database.Log = Cons...
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How to remove the querystring and get only the url?

... You can use strtok to get string before first occurence of ? $url = strtok($_SERVER["REQUEST_URI"], '?'); strtok() represents the most concise technique to directly extract the substring before the ? in the querystring. explode() is less direct be...
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How to implement the --verbose or -v option into a script?

...ler doesn't need to # stuff everything to be printed into a single string for arg in args: print arg, print else: verboseprint = lambda *a: None # do-nothing function (Yes, you can define a function in an if statement, and it'll only get defined if th...
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In Intellij, how do I toggle between camel case and underscore spaced?

... I use a plugin called String Manipulation which has the capabilities you're looking for (and more). Select historyOfPresentIllness and press Alt+M to bring up the plugin menu, then press: 5 - To snake_case (or to camelCase) which converts to h...
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How to convert Java String into byte[]?

Is there any way to convert Java String to a byte[] ( not the boxed Byte[] )? 8 Answers ...