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How does PHP 'foreach' actually work?
Let me prefix this by saying that I know what foreach is, does and how to use it. This question concerns how it works under the bonnet, and I don't want any answers along the lines of "this is how you loop an array with foreach ".
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Open a file with su/sudo inside Emacs
Suppose I want to open a file in an existing Emacs session using su or sudo , without dropping down to a shell and doing sudoedit or sudo emacs . One way to do this is
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Spring AOP vs AspectJ
I am under the impression that Spring AOP is best used for application specific tasks such as security, logging, transactions, etc. as it uses custom Java5 annotations as a framework. However, AspectJ seems to be more friendly design-patterns wise.
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Maven: The packaging for this project did not assign a file to the build artifact
I'm using Maven 3.0.3 on Mac 10.6.6. I have a JAR project and when I run the command "mvn clean install:install", I'm getting the error,
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How does java do modulus calculations with negative numbers?
Am I doing modulus wrong? Because in Java -13 % 64 is supposed to evaluate to -13 but I get 51 .
14 Answers
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receiver type *** for instance message is a forward declaration
In my iOS5 app, I have NSObject States class, and trying to init it:
9 Answers
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In C#, what happens when you call an extension method on a null object?
Does the method get called with a null value or does it give a null reference exception?
7 Answers
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Given a view, how do I get its viewController?
I have a pointer to a UIView . How do I access its UIViewController ? [self superview] is another UIView , but not the UIViewController , right?
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How to run a single test with Mocha?
I use Mocha to test my JavaScript stuff. My test file contains 5 tests. Is that possible to run a specific test (or set of tests) rather than all the tests in the file?
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What are OLTP and OLAP. What is the difference between them?
Actually what do they mean? All articles I find about them don't give me an idea, or my knowledge is too insufficient to understand it.
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