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Prefer composition over inheritance?
...above is:
Does TypeB want to expose the complete interface (all public methods no less) of TypeA such that TypeB can be used where TypeA is expected? Indicates Inheritance.
e.g. A Cessna biplane will expose the complete interface of an airplane, if not more. So that makes it fit to derive fro...
How does the C# compiler detect COM types?
...
By no means am I an expert in this, but I stumbled recently on what I think you want: the CoClass attribute class.
[System.Runtime.InteropServices.CoClass(typeof(Test))]
public interface Dummy { }
A coclass supplies concrete
...
How to use QueryPerformanceCounter?
...d that I needed to change from using milliseconds to microseconds for my Timer class, and after some research I've decided that QueryPerformanceCounter is probably my safest bet. (The warning on Boost::Posix that it may not works on Win32 API put me off a bit). However, I'm not really sure how to ...
How to verify that a specific method was not called using Mockito?
How to verify that a method is not called on an object's dependency?
5 Answers
5
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Implementing Fast and Efficient Core Data Import on iOS 5
... wait until the end to save. It has its own thread, and it will help keep memory down as well.
You wrote:
Then at the end of the import process, I save on the master/parent
context which, ostensibly, pushes modifications out to the other child
contexts including the main context:
In your...
Rendering JSON in controller
...eating your own dogfood and doing both
In both cases render :json => some_data will JSON-ify the provided data. The :callback key in the second example needs a bit more explaining (see below), but it is another variation on the same idea (returning data in a way that JavaScript can easily handl...
How do I calculate a point on a circle’s circumference?
How can the following function be implemented in various languages?
4 Answers
4
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What does yield mean in PHP?
...enerator function is the yield keyword. In its simplest form, a yield statement looks much like a return statement, except that instead of stopping execution of the function and returning, yield instead provides a value to the code looping over the generator and pauses execution of the generator fun...
How to convert local time string to UTC?
How do I convert a datetime string in local time to a string in UTC time ?
21 Answers
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How can I set the max-width of a table cell using percentages?
...mn groups is undefined.” So you cannot directly set max-width on a td element.
If you just want the second column to take up at most 67%, then you can set the width (which is in effect minimum width, for table cells) to 33%, e.g. in the example case
td:first-child { width: 33% ;}
Setting that ...