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Many-to-many relationship with the same model in rails?
...using options to has_and_belongs_to_many such as :finder_sql, :delete_sql, etc. It's not pretty. (I'm open to suggestions here too. Anyone?)
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Meaning of = delete after function declaration
...den function to be visibly declared and considered for overload resolution etc., so that it can fail as early as possible and provide the clearest error to the user. Any solution which involves "hiding" the declaration reduces this effect.
– Leushenko
Feb 26 '1...
What is the “FS”/“GS” register intended for?
...dows and Linux.
The original intention behind the segment registers was to allow a program to access many different (large) segments of memory that were intended to be independent and part of a persistent virtual store. The idea was taken from the 1966 Multics operating system, that treated files a...
JavaScript hide/show element
...you'd either have to set it in the HTML or combine usage of display: none; etc.
– Andrew
Jul 11 '19 at 18:14
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HTTP POST using JSON in Java
...uest);
} catch (Exception ex) {
} finally {
// @Deprecated httpClient.getConnectionManager().shutdown();
}
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How to show a dialog to confirm that the user wishes to exit an Android Activity?
...your app: pressing home, selecting a notification, receiving a phone call, etc.
– hackbod
Feb 13 '10 at 19:56
This wor...
install / uninstall APKs programmatically (PackageManager vs Intents)
My application installs other applications, and it needs to keep track of what applications it has installed. Of course, this could be achieved by simply keeping a list of installed applications. But this should not be necessary! It should be the responsibility of the PackageManager to maintain the ...
The best way to remove duplicate values from NSMutableArray in Objective-C?
...etWithArray:array]; You can then get back an array via array = [orderedSet allObjects]; or just use NSOrderedSets instead of NSArray in the first place.
– Regexident
May 14 '13 at 9:40
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What are the recommendations for html tag?
I've never seen <base> HTML tag actually used anywhere before. Are there pitfalls to its use that means I should avoid it?
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Why do we usually use || over |? What is the difference?
...plicit != 0 comparison (pointers, floats, objects with an operator bool(), etc.) and bitwise operators are almost always nonsensical in those contexts.
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