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Can someone explain the traverse function in Haskell?
...o grok the traverse function from Data.Traversable . I am unable to see its point. Since I come from an imperative background, can someone please explain it to me in terms of an imperative loop? Pseudo-code would be much appreciated. Thanks.
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How do I integrate Ajax with Django applications?
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Even though this isn't entirely in the SO spirit, I love this question, because I had the same trouble when I started, so I'll give you a quick guide. Obviously you don't understand the principles behind them (don't take it as an offense, but if you did you wouldn't be a...
Variable number of arguments in C++?
How can I write a function that accepts a variable number of arguments? Is this possible, how?
17 Answers
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Reflection - get attribute name and value on property
I have a class, lets call it Book with a property called Name. With that property, I have an attribute associated with it.
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Tools to selectively Copy HTML+CSS+JS From A Specific Element of DOM [closed]
Like most web developers, I occasionally like to look at the source of websites to see how their markup is built. Tools like Firebug and Chrome Developer Tools make it easy to inspect the code, but if I want to copy a specific section and play around with it locally, it would be a pain to copy all t...
Why can't I see the “Report Data” window when creating reports?
... the controls on to my report while not running, run the project and while it's running I can put the fields in....
11 Answ...
bool to int conversion
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Completely portable. Standard conformant. bool to int conversion is implicit!
§4.7/4 from the C++ Standard says (Integral Conversion)
If the source type is bool, the value false is converted to zero and
the value true is converted to one.
As for C, as far as I know there is no bool in C...
How do PHP sessions work? (not “how are they used?”)
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In the general situation :
the session id is sent to the user when his session is created.
it is stored in a cookie (called, by default, PHPSESSID)
that cookie is sent by the browser to the server with each request
the server (PHP) uses th...
How JavaScript closures are garbage collected
...of 2012, all modern browsers ship a mark-and-sweep garbage-collector." "Limitation: objects need to be made explicitly unreachable".
In your examples where it fails some is still reachable in the closure. I tried two ways to make it unreachable and both work. Either you set some=null when you don'...
What does Redis do when it runs out of memory?
...ow does Redis 2.0 handle running out of maximum allocated memory? How does it decide which data to remove or which data to keep in memory?
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