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Cannot obtain value of local or argument as it is not available at this instruction pointer, possibl
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No idea why this just suddenly started happening.. but this fixed it!
– Murphybro2
Nov 1 '18 at 10:46
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ConcurrentHashMap vs Synchronized HashMap
...in cases where high concurrency is expected.
Brian Goetz's article on the idea behind ConcurrentHashMap is a very good read. Highly recommended.
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How to unload a package without restarting R
...tion and then another--although namespace referencing is probably a better idea for that use).
11 Answers
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How do you check in python whether a string contains only numbers?
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I had no idea that method existed. I've always done try: assert str(int(foo)) == foo; except (AssertionError,ValueError): #handle and it felt ugly as sin. Thanks!
– Adam Smith
Jan 27 '14 at 18:23...
Java: when to use static methods
...basic issue with static methods is
they are procedural code. I have no
idea how to unit-test procedural code.
Unit-testing assumes that I can
instantiate a piece of my application
in isolation. During the instantiation
I wire the dependencies with
mocks/friendlies which replace the
r...
Why not be dependently typed?
...pressure on this technology and see what starts
wobbling. We might get the idea that singletons should be manageable a
bit more implicitly
class Nattily (n :: Nat) where
natty :: Natty n
instance Nattily Z where
natty = Zy
instance Nattily n => Nattily (S n) where
natty = Sy natty
allowi...
How to detect which one of the defined font was used in a web page?
...ent that definitely has the Arial font and I'm getting "" as the font. Any ideas as to why?
– Alessandro Vermeulen
Jul 4 '13 at 8:52
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How to give ASP.NET access to a private key in a certificate in the certificate store?
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Any idea how to do this via powershell?
– sonjz
Sep 18 '14 at 17:07
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When is a C++ destructor called?
... place and construct a new one in place. (However, generally this is a bad idea.)
// pointer is destroyed because it goes out of scope,
// but not the object it pointed to. memory leak
if (1) {
Foo *myfoo = new Foo("foo");
}
// pointer is destroyed because it goes out of scope,
// object it poin...
What's the best way to learn LISP? [closed]
...proach maybe you should pick some Lisp framework for web design
(I have no idea if such a beast exists) and jump right in.
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