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rbenv not changing ruby version
... by rbenv ( be sure you have the eval statement above in .bash_profile!). Now, all works as before. Thanks for helping me get this solved.
– John Wooten
Jul 11 '19 at 14:44
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Scala type programming resources
...]]]
(This is a lot like defining a val to be the result of a function.)
Now, suppose we want to define a value-level function def toInt[T <: Nat](v : T) which takes in an argument value, v, that conforms to Nat and returns an integer representing the natural number encoded in v's type. For exa...
Hidden features of Scala
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trait Functor[F[_]] {
def fmap[A, B](f: A => B, fa: F[A]): F[B]
}
Now, if you have a Functor[List], you can map over lists. If you have a Functor[Tree], you can map over trees. But more importantly, if you have Functor[A] for any A of kind (*->*), you can map a function over A.
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How to create a self-signed certificate with OpenSSL
... the Trust Store used by the browser.
Steps 2 - 4 are roughly what you do now for a public facing server when you enlist the services of a CA like Startcom or CAcert. Steps 1 and 5 allows you to avoid the third-party authority, and act as your own authority (who better to trust than yourself?).
Th...
What's the “average” requests per second for a production web application?
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@user :-D Yes, it's pretty much historical now. It was a useful answer for me at the time, though! :-)
– Peter K.
Sep 14 '17 at 10:59
add a com...
Where are static methods and static variables stored in Java?
...d what to collect, you can only provide hints like "I'd like you to run gc now" :) ).
– Thomas
Dec 5 '11 at 16:09
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show 16 more comments
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Make the current Git branch a master branch
...time they want to pull, else git will try to merge the changes into their (now) divergent local. The dangers of this are explained more in this answer
– 7yl4r
Mar 27 '17 at 14:56
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What does “SyntaxError: Missing parentheses in call to 'print'” mean in Python?
... from being a distinct statement to being an ordinary function call, so it now needs parentheses:
>>> print("Hello, World!")
Hello, World!
In earlier versions of Python 3, the interpreter just reports a generic syntax error, without providing any useful hints as to what might be going wr...
Case insensitive string compare in LINQ-to-SQL
...e other? I thought I read somewhere that ToUpper was better, but I don't know if that applies here. (I'm doing a lot of code reviews and everyone is using ToLower.)
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What is the difference between Class.getResource() and ClassLoader.getResource()?
...onger hold true, the reason being that the file that I was being loaded is now baked into a jar and deployed to the depending web project. I only noticed this after trying to change the file in my target folder, to no avail. This made it seem as though there was caching going on.
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