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Should operator

...o use a stream-like object of type T. And that you want to extract/insert from/into T the relevant data of your object of type Paragraph. Generic operator << and >> function prototypes The first being as functions: // T << Paragraph T & operator << (T & p_oOutputS...
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Return first match of Ruby regex

...ou could try variableName[/regular expression/]. This is an example output from irb: irb(main):003:0> names = "erik kalle johan anders erik kalle johan anders" => "erik kalle johan anders erik kalle johan anders" irb(main):004:0> names[/kalle/] => "kalle" ...
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Rails.env vs RAILS_ENV

...current logger or RAILS_ROOT to get the path to the root folder. Starting from Rails 2.x, Rails introduced the Rails module with some special methods: Rails.root Rails.env Rails.logger This isn't just a cosmetic change. The Rails module offers capabilities not available using the standard const...
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Collection that allows only unique items in .NET?

... HashSet<T> is what you're looking for. From MSDN (emphasis added): The HashSet<T> class provides high-performance set operations. A set is a collection that contains no duplicate elements, and whose elements are in no particular order. Note that the Ha...
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How to auto-center jQuery UI dialog when resizing browser?

...more flexible way can be found here. An adaption of the code of relevance from that thread is below. This extension essentially creates a new dialog setting called autoReposition which accepts a true or false. The code as written defaults the option to true. Put this into a .js file in your project...
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Static nested class in Java, why?

... outer = new OuterClass(1); // It is not possible to create outer instance from outside. } } This will output x: 1 share | improve this answer | follow |...
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What are all the different ways to create an object in Java?

...t deserialization Object deserialization is nothing but creating an object from its serialized form. ObjectInputStream inStream = new ObjectInputStream(anInputStream ); MyObject object = (MyObject) inStream.readObject(); You can read them from here. ...
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How to verify if a file exists in a batch file?

... Just something to note from the IF /? help file: The ELSE clause must occur on the same line as the command after the IF. This burned me. hope it helps you. – funkymushroom Feb 27 '14 at 17:58 ...
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Render a variable as HTML in EJS

... I had the same issue with rendering the textarea input from from a wysiwyg editor saved as html in my database. The browser will not render it but displayed the html as text. After hours of searching, I found out <%= data %> escaped data while <%- data %>left data ...
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Is there a difference between “raise exception()” and “raise exception” without parenthesis?

.... This first form auto instantiates your exception. The relevant section from the docs says, "raise evaluates the first expression as the exception object. It must be either a subclass or an instance of BaseException. If it is a class, the exception instance will be obtained when needed by instant...