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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...
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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When is it better to use String.Format vs string concatenation?
...code that is parsing an index value to determine a cell input into Excel. It's got me thinking...
14 Answers
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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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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...
Is it pythonic to import inside functions?
..., that way you can tell at a glance how complicated your module is by what it needs to import.
If I'm adding new code to an existing file I'll usually do the import where it's needed and then if the code stays I'll make things more permanent by moving the import line to the top of the file.
One ot...
Is there any performance gain in indexing a boolean field?
I'm just about to write a query that includes a WHERE isok=1 . As the name implies, isok is a boolean field (actually a TINYINT(1) UNSIGNED that is set to 0 or 1 as needed).
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HTML “overlay” which allows clicks to fall through to elements behind it [duplicate]
I'm trying to overlay a element on top of a webpage (to draw arbitrary graphics), and I've come to the point where I can stack it inside of a element on top of everything, but this prevents the user from clicking on any links/buttons/etc.
Is there a way to have its content float on top of everythi...