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How do I convert between big-endian and little-endian values in C++?
...
If you're using Visual C++ do the following: You include intrin.h and call the following functions:
For 16 bit numbers:
unsigned short _byteswap_ushort(unsigned short value);
For 32 bit numbers:
unsigned long _byteswap_u...
Difference between exit() and sys.exit() in Python
... are two similarly-named functions, exit() and sys.exit() . What's the difference and when should I use one over the other?
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Why does @foo.setter in Python not work for me?
...problems is that both methods need the same name for the property to work. If you define the setter with a different name like this it won't work:
@x.setter
def x_setter(self, value):
...
And one more thing that is not completely easy to spot at first, is the order: The getter must be defined...
Delete directory with files in it?
...n!). Here is an example:
public static function deleteDir($dirPath) {
if (! is_dir($dirPath)) {
throw new InvalidArgumentException("$dirPath must be a directory");
}
if (substr($dirPath, strlen($dirPath) - 1, 1) != '/') {
$dirPath .= '/';
}
$files = glob($dirPath...
Flask raises TemplateNotFound error even though template file exists
...dule, and that you did in fact put a home.html file in that subdirectory. If your app is a package, the templates folder should be created inside the package.
myproject/
app.py
templates/
home.html
myproject/
mypackage/
__init__.py
templates/
hom...
How to write an inline IF statement in JavaScript?
...e minor if the value is true, and major if the value is false.
This is known as a Conditional (ternary) Operator.
https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Operators/Conditional_Operator
share
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Swift equivalent for MIN and MAX macros
... minimum and maximum value between two numbers using MIN and MAX macros. Swift doesn't support macros and it seems that there are no equivalents in the language / base library. Should one go with a custom solution, maybe based on generics like this one ?
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What's the UIScrollView contentInset property for?
...ew.
Obj-C
aScrollView.contentInset = UIEdgeInsetsMake(0, 0, 0, 7.0);
Swift 5.0
aScrollView.contentInset = UIEdgeInsets(top: 0, left: 0, bottom: 0, right: 7.0)
Here's a good iOS Reference Library article on scroll views that has an informative screenshot (fig 1-3) - I'll replicate it via text ...
Difference between single and double quotes in Bash
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For anyone who doesn't know what "interpolate" means: en.wikipedia.org/wiki/String_interpolation
– Kolob Canyon
May 10 '18 at 17:57
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How can I get the client's IP address in ASP.NET MVC?
....Current.Request.UserHostAddress;
..
}
}
}
BUT, if the request has been passed on by one, or more, proxy servers then the IP address returned by HttpRequest.UserHostAddress property will be the IP address of the last proxy server that relayed the request.
Proxy servers MA...