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Rank function in MySQL

... One option is to use a ranking variable, such as the following: SELECT first_name, age, gender, @curRank := @curRank + 1 AS rank FROM person p, (SELECT @curRank := 0) r ORDER BY age; The (SELECT @curRank := 0) part allo...
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How do I intercept a method call in C#?

...riented language. It has some AOP features and you can emulate some others but making AOP with C# is painful. I looked up for ways to do exactly what you wanted to do and I found no easy way to do it. As I understand it, this is what you want to do: [Log()] public void Method1(String name, Int32 ...
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What are 'get' and 'set' in Swift?

...ft and I'm reading The Swift Programming Language from Apple, I have no Objective C background (only PHP, JS, and other but no Obj C) ...
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Is there a “standard” format for command line/shell help text?

If not, is there a de facto standard? Basically I'm writing a command line help text like so: 8 Answers ...
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Copying a HashMap in Java

I am trying to keep a temporary container of a class that contains member : 11 Answers ...
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Use curly braces to initialize a Set in Python

I'm learning python, and I have a novice question about initializing sets. Through testing, I've discovered that a set can be initialized like so: ...
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What are all the escape characters?

... You can find the full list here. \t Insert a tab in the text at this point. \b Insert a backspace in the text at this point. \n Insert a newline in the text at this point. \r Insert a carriage return in the text at this point. \f Insert a formfeed in the text ...
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Does setting Java objects to null do anything anymore?

I was browsing some old books and found a copy of "Practical Java" by Peter Hagger. In the performance section, there is a recommendation to set object references to null when no longer needed. ...
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Does JavaScript guarantee object property order?

If I create an object like this: 12 Answers 12 ...
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Take all my changes on the current branch and move them to a new branch in Git

I started work on what I thought would be a minor bug fix on my master branch. However, it has spiraled out of control to the point where I wish I had created a separate branch to do the development in the first place. ...