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Good examples of Not a Functor/Functor/Applicative/Monad?
...tructor which is not a Functor:
newtype T a = T (a -> Int)
You can make a contravariant functor out of it, but not a (covariant) functor. Try writing fmap and you'll fail. Note that the contravariant functor version is reversed:
fmap :: Functor f => (a -> b) -> f a ->...
CustomErrors mode=“Off”
...
The machine.config is located at
32-bit
%windir%\Microsoft.NET\Framework\[version]\config\machine.config
64-bit
%windir%\Microsoft.NET\Framework64\[version]\config\machine.config
Hope that helps someone out there and saves a few hours of hair-pulling.
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Check existence of input argument in a Bash shell script
I need to check the existence of an input argument. I have the following script
11 Answers
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How to fix: Handler “PageHandlerFactory-Integrated” has a bad module “ManagedPipelineHandler” in its
I am configuring an MVC 3 project to work on a local install of IIS and came across the following 500 error:
19 Answers
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Converting many 'if else' statements to a cleaner approach [duplicate]
...e a Converter interface. Then you could create a class for each Mimetype like:
public interface Converter {
public void convertToMp3();
public void convertToOgg();
}
public class MpegConverter implements Converter {
public void convertToMp3() {
//Code here
}
public ...
How do I prevent the modification of a private field in a class?
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OldCurmudgeonOldCurmudgeon
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Get the closest number out of an array
...ber from minus 1000 to plus 1000 and I have an array with numbers in it. Like this:
20 Answers
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Viewing unpushed Git commits
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Epeli
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answered Jan 6 '10 at 22:50
Peter BPeter B
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How default .equals and .hashCode will work for my classes?
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Yes, the default implementation is Object's (generally speaking; if you inherit from a class that redefined equals and/or hashCode, then you'll use that implementation instead).
From the documentation:
equals
The equals method for class Object implements the most discriminating...
Python - When to use file vs open
...s:
When opening a file, it's preferable
to use open() instead of invoking this
constructor directly. file is more
suited to type testing (for example,
writing "isinstance(f, file)").
Also, file() has been removed since Python 3.0.
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