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What is the difference between a var and val definition in Scala?
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As so many others have said, the object assigned to a val cannot be replaced, and the object assigned to a var can. However, said object can have its internal state modified. For example:
class A(n: Int) {
var value = n
}
class...
What values should I use for CFBundleVersion and CFBundleShortVersionString?
This is my first iOS app submission and I don't want my app rejected.
7 Answers
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Xcode changes unmodified storyboard and XIB files
Storyboards are rather a royal pain from a git workflow perspective when multiple people are collaborating on them. For example, the XML in the .storyboard file has its starting <document> tag's toolsVersion and systemVersion attributes altered by whatever configuration the most recent f...
What is the minimum I have to do to create an RPM file?
I just want to create an RPM file to distribute my Linux binary "foobar", with only a couple of dependencies. It has a config file, /etc/foobar.conf and should be installed in /usr/bin/foobar.
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Apache Spark: The number of cores vs. the number of executors
I'm trying to understand the relationship of the number of cores and the number of executors when running a Spark job on YARN.
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How to add a browser tab icon (favicon) for a website?
I've been working on a website and I'd like to add a small icon to the browser tab.
13 Answers
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Maven2: Best practice for Enterprise Project (EAR file)
I am just switching from Ant to Maven and am trying to figure out the best practice to set up a EAR file based Enterprise project?
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How do I create a random alpha-numeric string in C++?
I'd like to create a random string, consisting of alpha-numeric characters. I want to be able to be specify the length of the string.
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What's the difference between a single precision and double precision floating point operation?
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Note: the Nintendo 64 does have a 64-bit processor, however:
Many games took advantage of the chip's 32-bit processing mode as the greater data precision available with 64-bit data types is not typically required by 3D games, as well as the fact that processing 64-bit data uses twice a...
std::unique_ptr with an incomplete type won't compile
I'm using the pimpl-idiom with std::unique_ptr :
6 Answers
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