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How to do exponentiation in clojure?
How can I do exponentiation in clojure?
For now I'm only needing integer exponentiation, but the question goes for fractions too.
...
Is it possible to allow didSet to be called during initialization in Swift?
...ample:
public class MyNewType: NSObject {
public var myRequiredField:Int
public var myOptionalField:Float? {
willSet {
if let newValue = newValue {
print("I'm going to change to \(newValue)")
}
}
didSet {
if let m...
How to add url parameters to Django template url tag?
...
Doesn't this result in the trailing slash interrupting the url, like example.com/myview/?office=foobar instead of example.com/myview?office=foobar?
– Al Sweigart
May 12 '17 at 2:27
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What are the rules for the “…” token in the context of variadic templates?
... //pattern = z<T>(args)
}
Now if I call this function passing T as {int, char, short}, then each of the function call is expanded as:
g( arg0, arg1, arg2 );
h( x(arg0), x(arg1), x(arg2) );
m( y(arg0, arg1, arg2) );
n( z<int>(arg0), z<char>(arg1), z<short>(arg2) );...
Checking if an object is a given type in Swift
...to the else clause. Without the ? else would never be entered and as you pointed out cause a runtime error. Thanks again.
– Unheilig
Jun 7 '14 at 0:00
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Can a C# class inherit attributes from its interface?
...
No. Whenever implementing an interface or overriding members in a derived class, you need to re-declare the attributes.
If you only care about ComponentModel (not direct reflection), there is a way ([AttributeProvider]) of suggesting attributes from an ...
UIPanGestureRecognizer - Only vertical or horizontal
...gnizerShouldBegin:(UIPanGestureRecognizer *)panGestureRecognizer {
CGPoint velocity = [panGestureRecognizer velocityInView:someView];
return fabs(velocity.y) > fabs(velocity.x);
}
And for Swift:
func gestureRecognizerShouldBegin(_ gestureRecognizer: UIPanGestureRecognizer) -> Bool {...
Python pandas: fill a dataframe row by row
...sign a dictionary
to each element of the row y probably not what you want; converting to a Series tells pandas
that you want to align the input (for example you then don't have to to specify all of the elements)
In [7]: df = pandas.DataFrame(columns=['a','b','c','d'], index=['x','y','z'])
In [8]: ...
Is bool a native C type?
...ros from stdbool.h.
Note, BTW, that this implies that C preprocessor will interpret #if true as #if 0 unless stdbool.h is included. Meanwhile, C++ preprocessor is required to natively recognize true as a language literal.
s...
Structs versus classes
...e because the stack is an implementation detail. The jitter is allowed to introduce optimizations that, say, enregister what would normally be a stack value, and then it's never on the stack so the GC doesn't know that it is still alive. An enregistered object can have its descendents collected agg...