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How to use a variable to specify column name in ggplot
I have a ggplot command
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String formatting: % vs. .format vs. string literal
Python 2.6 introduced the str.format() method with a slightly different syntax from the existing % operator. Which is better and for what situations?
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GetProperties() to return all properties for an interface inheritance hierarchy
Assuming the following hypothetical inheritance hierarchy:
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Why NSUserDefaults failed to save NSMutableDictionary in iOS?
I'd like to save an NSMutableDictionary object in NSUserDefaults . The key type in NSMutableDictionary is NSString , the value type is NSArray , which contains a list of object which implements NSCoding . Per document, NSString and NSArray both are conform to NSCoding .
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GetType() can lie?
...d on the following question asked a few days ago in SO: GetType() and polymorphism and reading Eric Lippert's answer, I started thinking if making GetType() not be virtual really ensured that an object could not lie about its Type .
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How to push to a non-bare Git repository?
I usually work on a remote server via ssh (screen and vim), where I have a Git repository. Sometimes I'm not online, so I have a separate repository (cloned from my remote) on my laptop.
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Margin while printing html page
I am using a separate style-sheet for printing. Is it possible to set right and left margin in the style-sheet which set the print margin (i.e. margin on paper).
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How to format an inline code in Confluence?
How can I format an inline code in Confluence like this ? I mean, not a separate code block, but just inline classname , for example.
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Breaking out of a nested loop
... I have a for loop which is nested within another, how can I efficiently come out of both loops (inner and outer) in the quickest possible way?
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How to secure database passwords in PHP?
When a PHP application makes a database connection it of course generally needs to pass a login and password. If I'm using a single, minimum-permission login for my application, then the PHP needs to know that login and password somewhere. What is the best way to secure that password? It seems like ...