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difference between socket programming and Http programming
...ted.
Sockets on the other hand are an API that most operating systems provide to be able to talk with the network. The socket API supports different protocols from the transport layer and down.
That means that if you would like to use TCP you use sockets. But you can also use sockets to communicat...
Using multiple let-as within a if-statement in Swift
... remember that if one of the attempted optional bindings fail, the code inside the if-let block won't be executed.
Note: the clauses don't all have to be 'let' clauses, you can have any series of boolean checks separated by commas.
For example:
if let latitudeDouble = latitude as? Double, import...
How to npm install to a specified directory?
...g that I have noticed on Mac that it creates a symlink to parent folder inside the node_modules directory. But, it still works.
NOTE: NPM honours the path that you've specified through the --prefix option. It resolves as per npm documentation on folders, only when npm install is used without the --p...
Sprintf equivalent in Java
... %s".format(key, value);
The original Java authors (and .NET authors) decided that a static method made more sense in this situation, as you are not modifying the target, but instead calling a format method and passing in an input string.
Here is an example of why format() would be dumb as an ins...
Apply CSS styles to an element depending on its child elements
...f you could do something like div[div.a] or div:containing[div.a] as you said, but this isn't possible.
You may want to consider looking at jQuery. Its selectors work very well with 'containing' types. You can select the div, based on its child contents and then apply a CSS class to the parent all...
What's the difference between == and .equals in Scala?
... answered Oct 6 '11 at 22:33
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Definition of a Balanced Tree
... C <-- difference = 2
/ /
D E
/
G
That said, the specific constraint of the first point depends on the type of tree. The one listed above is the typical for AVL trees.
Red-black trees, for instance, impose a softer constraint.
...
Including Google Web Fonts link or import?
...s you likely want the <link> tag. As a rule of thumb, you want to avoid @import rules because they defer the loading of the included resource until the file is fetched.. and if you have a build process which "flattens" the @import's, then you create another problem with web fonts: dynamic prov...
Is the VC++ code DOM accessible from VS addons?
...
The Visual C++ Refactoring extension is able to rename a member project-wide. Its built by MS but obviously they used the internal Code DOM to achieve this. So it is possible, I just don't know how, yet.
The CppLister extension is able to read the intellisense databases created by VS to list the ...
What is the difference between Trap and Interrupt?
...is an exception in a user process. It's caused by division by zero or invalid memory access. It's also the usual way to invoke a kernel routine (a system call) because those run with a higher priority than user code. Handling is synchronous (so the user code is suspended and continues afterwards). I...