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Using Default Arguments in a Function
...esn't answer your question, but is hopefully informative:
public function __construct($params = null)
{
if ($params instanceof SOMETHING) {
// single parameter, of object type SOMETHING
} else if (is_string($params)) {
// single argument given as string
} else if (is_arr...
How do I create a basic UIButton programmatically?
...height: 500)
myButton.addTarget(self, action: #selector(pressedAction(_:)), for: .touchUpInside)
self.view.addSubview( myButton)
func pressedAction(_ sender: UIButton) {
// do your stuff here
print("you clicked on button \(sender.tag)")
}
SwiftUI
for example you get the step by ...
Get querystring from URL using jQuery [duplicate]
...ing = urlOrQueryString.substring(i+1);
if (queryString) {
return _mapUrlParams(queryString);
}
}
return {};
}
/**
* Helper function for `getUrlParams()`
* Builds the querystring parameter to value object map.
*
* @param queryString {string} - The full querystring, without th...
Split code over multiple lines in an R script
...two step solution.
1) Bring the text string in across multiple lines
long_string <- "this
is
a
long
string
with
whitespace"
2) R will introduce a bunch of \n characters. Strip those out with strwrap(), which destroys whitespace, per the documentation:
strwrap(long_string, width=10000, sim...
How to detect if CMD is running as Administrator/has elevated privileges?
... net.exe session works perfectly for me.
– kayleeFrye_onDeck
Dec 23 '14 at 0:23
This seems the easiest way to do this ...
How to check if a number is a power of 2
...nswered Aug 25 '10 at 19:53
deft_codedeft_code
49.2k2525 gold badges132132 silver badges210210 bronze badges
...
Why does pattern matching in Scala not work with variables?
...atch {
case `target` => println("It was" + target)
case _ => println("It was something else")
}
}
def mMatch2(s: String) = {
val Target: String = "a"
s match {
case Target => println("It was" + Target)
case _ => println("It was something else"...
Defining a variable with or without export
... edited May 8 '18 at 16:27
4wk_
1,83933 gold badges2626 silver badges4242 bronze badges
answered Jul 21 '09 at 9:56
...
How to create abstract properties in python abstract classes
... (python docs):
class C(ABC):
@property
@abstractmethod
def my_abstract_property(self):
...
Python 2: (python docs)
class C(ABC):
@abstractproperty
def my_abstract_property(self):
...
...
How do I concatenate two strings in C?
...-terminator.
char* concat(const char *s1, const char *s2)
{
const size_t len1 = strlen(s1);
const size_t len2 = strlen(s2);
char *result = malloc(len1 + len2 + 1); // +1 for the null-terminator
// in real code you would check for errors in malloc here
memcpy(result, s1, len1);
...