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What exactly is Arel in Rails 3.0?
I understand that it is a replacement for ActiveRecord and that it uses objects instead of queries.
4 Answers
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How to make asynchronous HTTP requests in PHP
...esponse, I just want to do something like file_get_contents() , but not wait for the request to finish before executing the rest of my code. This would be super useful for setting off "events" of a sort in my application, or triggering long processes.
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Logging best practices [closed]
...ks do you use?
A: System.Diagnostics.TraceSource, built in to .NET 2.0.
It provides powerful, flexible, high performance logging for applications, however many developers are not aware of its capabilities and do not make full use of them.
There are some areas where additional functionality is u...
How can I make an svg scale with its parent container?
...g element's contents scale when size is non-native. Of course I could have it as a separate file and scale it like that.
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scipy.misc module has no attribute imread?
I am trying to read an image with scipy. However it does not accept the scipy.misc.imread part. What could be the cause of this?
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Is the size of C “int” 2 bytes or 4 bytes?
...Integer variable in C occupy 2 bytes or 4 bytes? What are the factors that it depends on?
13 Answers
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Position a CSS background image x pixels from the right?
I think the answer is no, but can you position a background image with CSS, so that it is a fixed amount of pixels away from the right?
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Why should casting be avoided? [closed]
...oid casting types as much as possible since I am under the impression that it's poor coding practice and may incur a performance penalty.
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Limitations of Intel Assembly Syntax Compared to AT&T [closed]
... Intel syntax, will I miss anything? Is there any reason I would want to switch to AT&T (outside of being able to read others' AT&T assembly)? My first clue is that gdb uses AT&T by default.
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How do C++ class members get initialized if I don't do it explicitly?
Suppose I have a class with private memebers ptr , name , pname , rname , crname and age . What happens if I don't initialize them myself? Here is an example:
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