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LINQ: When to use SingleOrDefault vs. FirstOrDefault() with filtering criteria
...g the appropriate one, depending on the expected results, improves readability.
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What's the deal with a leading underscore in PHP class methods?
...ies I've noticed that a lot of people choose to prefix some class methods with a single underscore, such as
13 Answers
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What is Scala's yield?
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It is used in sequence comprehensions (like Python's list-comprehensions and generators, where you may use yield too).
It is applied in combination with for and writes a new element into the resulting sequence.
Simple examp...
Nginx 403 forbidden for all files
I have nginx installed with PHP-FPM on a CentOS 5 box, but am struggling to get it to serve any of my files - whether PHP or not.
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How does push notification technology work on Android?
How has Google implemented their push notification feature? Does it work through polling done by a service running in the background or in a different way?
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What is the point of interfaces in PHP?
...low you to create code which defines the methods of classes that implement it. You cannot however add any code to those methods.
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Is MonoTouch now banned on the iPhone? [closed]
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Update -
This changed recently. MonoTouch should no longer conflict with
the agreement. Any statements below are purely historical!
Yes, it seems pretty clear from their license agreement now that if the original application is written in C# then it would be violating the license:
...Applica...
How to get current memory usage in android?
I have used /proc/meminfo and parsed command response.however it result shows that :
11 Answers
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JUnit vs TestNG [closed]
At work we are currently still using JUnit 3 to run our tests. We have been considering switching over to JUnit 4 for new tests being written but I have been keeping an eye on TestNG for a while now. What experiences have you all had with either JUnit 4 or TestNG, and which seems to work better fo...
Difference between declaring variables before or in loop?
... to repeatedly inside the loop, makes any (performance) difference?
A (quite pointless) example in Java:
25 Answers
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