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How does virtual inheritance solve the “diamond” (multiple inheritance) ambiguity?
...cify which path you want to take.
Wikipedia has another good rundown and example here
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How to increase font size in a plot in R?
I am confused. What is the right way to increase font size of text in the title, labels and other places of a plot?
7 Answ...
What is “point free” style (in Functional Programming)?
...mbinators and function composition [...] instead of variables.
Haskell example:
Conventional (you specify the arguments explicitly):
sum (x:xs) = x + (sum xs)
sum [] = 0
Point-free (sum doesn't have any explicit arguments - it's just a fold with + starting with 0):
sum = foldr (+) 0
Or ev...
Which @NotNull Java annotation should I use?
...tion and/or static code analysis (FindBugs and Sonar) to avoid NullPointerExceptions. Many of the tools seem incompatible with each others' @NotNull / @NonNull / @Nonnull annotation and listing all of them in my code would be terrible to read. Any suggestions of which one is the 'best'? Here is...
What is the difference between a var and val definition in Scala?
...a var can. However, said object can have its internal state modified. For example:
class A(n: Int) {
var value = n
}
class B(n: Int) {
val value = new A(n)
}
object Test {
def main(args: Array[String]) {
val x = new B(5)
x = new B(6) // Doesn't work, because I can't replace the obje...
Remove all elements contained in another array
... method:
myArray = myArray.filter( function( el ) {
return toRemove.indexOf( el ) < 0;
} );
Small improvement, as browser support for Array.includes() has increased:
myArray = myArray.filter( function( el ) {
return !toRemove.includes( el );
} );
Next adaptation using arrow function...
Check if a class has a member function of a given signature
...
I'm not sure if I understand you correctly, but you may exploit SFINAE to detect function presence at compile-time. Example from my code (tests if class has member function size_t used_memory() const).
template<typename T>
struct HasUsedMemoryMethod
{
template<typenam...
Why is Python 3.x's super() magic?
In Python 3.x, super() can be called without arguments:
1 Answer
1
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Update a dataframe in pandas while iterating row by row
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I'm not sure if we read it exactly the same. If you look in my pseudo code I do the modification on the dataframe, not on the value from the iterator. The iterator value is only used for the index of the value/object. What will fail is row['ifor']=some_...
Syntax error on print with Python 3 [duplicate]
Why do I receive a syntax error when printing a string in Python 3?
3 Answers
3
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