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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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What are the Dangers of Method Swizzling in Objective-C?

I have heard people state that method swizzling is a dangerous practice. Even the name swizzling suggests that it is a bit of a cheat. ...
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Check if a number is int or float

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Is there a standard way to list names of Python modules in a package?

Is there a straightforward way to list the names of all modules in a package, without using __all__ ? 10 Answers ...
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Associative arrays in Shell scripts

We required a script that simulates Associative arrays or Map like data structure for Shell Scripting, any body? 17 Answers...
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'Incomplete final line' warning when trying to read a .csv file into R

I'm trying to read a .csv file into R and upon using this formula: 15 Answers 15 ...
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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 get the cookies from a php curl into a variable

So some guy at some other company thought it would be awesome if instead of using soap or xml-rpc or rest or any other reasonable communication protocol he just embedded all of his response as cookies in the header. ...
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What is two way binding?

I have read lots that Backbone doesn't do two way binding but I don't exactly understand this concept. 5 Answers ...
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Compare double to zero using epsilon

Today, I was looking through some C++ code (written by somebody else) and found this section: 11 Answers ...