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Advantages of stateless programming?
I've recently been learning about functional programming (specifically Haskell, but I've gone through tutorials on Lisp and Erlang as well). While I found the concepts very enlightening, I still don't see the practical side of the "no side effects" concept. What are the practical advantages of it? ...
What is a lambda expression in C++11?
... }
} f;
std::for_each(v.begin(), v.end(), f);
}
however this is not allowed, f cannot be passed to a template function in C++03.
The new solution
C++11 introduces lambdas allow you to write an inline, anonymous functor to replace the struct f. For small simple examples this can be cleaner t...
UITableView : viewForHeaderInSection: not called during reloadData:
...iew with correct delegate and datasource linkages.. the reloadData method calls the datasource and the delegate methods except for viewForHeaderInSection: .
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Can someone explain in simple terms to me what a directed acyclic graph is?
...t a directed acyclic graph is? I have looked on Wikipedia but it doesn't really make me see its use in programming.
13 Answ...
git ignore vim temporary files
...t is the correct way to make git ignore temporary files produced by vim in all directories (either globally across the system or locally for a single project)?
...
List files ONLY in the current directory
In Python, I only want to list all the files in the current directory ONLY. I do not want files listed from any sub directory or parent.
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Unable to start debugging because the object invoked has disconnected from its clients
...e control engine
Review the list of extensions and plugins. Try to disable all or some of them
Close Visual Studio and kill all the development processes: devenv, mspdbsrv, vcpkgsrv, msbuild, msvsmon, vshub, vstest etc
Remove .suo, .ncb, .VC.db, .VC.VC.opendb files of the solution as well as .vs dir...
Check if a string has white space
... "/" characters are sufficient.
/^\s+$/ is checking whether the string is ALL whitespace:
^ matches the start of the string.
\s+ means at least 1, possibly more, spaces.
$ matches the end of the string.
Try replacing the regex with /\s/ (and no quotes)
...
What is the scope of variables in JavaScript?
... even matter? Also, where are the variables stored if they are defined globally?
26 Answers
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What's the idiomatic syntax for prepending to a short python list?
... @MattM. If you insert at the front of a list, python has to move all the other items one space forwards, lists can't "make space at the front". collections.deque (double ended queue) has support for "making space at the front" and is much faster in this case.
– fejfo
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