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JavaScript: empty array, [ ] evaluates to true in conditional structures. Why is this?
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Thanks for contributing an answer to Stack Overflow!Please be sure to answer the question. Provide details and share your research!But avoid …Asking for help, clarification, or responding to other answers.Making statements based o...
How do you concatenate Lists in C#?
...if it's saying the arguments are invalid, you don't have a using statement for System.Linq, or one of them is not an IEnumerable<T>
– Jonathan Rupp
Jun 11 '15 at 17:28
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What is the difference between 0.0.0.0, 127.0.0.1 and localhost?
... address by default. I can still visit it via http://localhost:port . But for Jekyll , it seems that the default setting (e.g. 0.0.0.0:4000) requires Internet access. I cannot run Jekyll server without Internet. Is it a small bug?
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Await on a completed task same as task.Result?
...e (in a library) can occasionally use Result/Wait if the code really calls for it. Such usage should probably have comments.
Parallel task code can use Result and Wait.
Note that (1) is by far the common case, hence my tendency to use await everywhere and treat the other cases as exceptions to the...
How different is Objective-C from C++? [closed]
...l crash if you try to call a member function of nullptr
Objective-C allows for dynamic dispatch, allowing the class responding to a message to be determined at runtime, unlike C++ where the object a method is invoked upon must be known at compile time (see wilhelmtell's comment below). This is relat...
About Java cloneable
I was looking for some tutorials explaining about Java Cloneable , but did not get any good links, and Stack Overflow is becoming more obvious choice anyways.
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How to replace a character with a newline in Emacs?
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M-x replace-string RET ; RET C-q C-j.
C-q for quoted-insert,
C-j is a newline.
Cheers!
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What do the &,
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The & marks an alias for the node (in your example &default aliases the development node as "default") and the * references the aliased node with the name "default". The <<: inserts the content of that node.
Allow me to quote the YAML ...
How to remove the arrow from a select element in Firefox
...not even bothering with IE). I'm using the CSS3 appearance property, but for some reason I can't shake the drop-down icon out of Firefox.
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What's the difference of $host and $http_host in Nginx
... always equal to the first value specified with the server_name directive. For example, with server_name example.com one.example.com two.example.com;, $server_name will always be "example.com", regardless of which host the user has specified. In fact, if you don't have a default_server, the host mig...