Difference between ‘cls’ and ‘self’ in Python classes?
Why is cls sometimes used instead of self as an argument in Python classes? For example:
class
Python: How do I make a subclass from a superclass?
In Python, how do you make a subclass from a superclass?
What is the point of “final class” in Java?
If they do, when do they use it so I can understand it better and know when to use it. A final class is simply a class that can’t be extended. (It does not mean that all references to objects of the class would act as if they were declared as final.) When it’s useful to declare a class … Read more
How to assign multiple classes to an HTML container?
Is it possible to assign multiple classes to a single HTML container? Something like:
What does ‘super().__init__()’ mean in python 3.x?
What is the difference between these two code samples? 1: 2:
C++ [Error] no matching function for call to
You are trying to call DeckOfCards::shuffle with a deckOfCards parameter: But the method takes a vector<Card>&: The compiler error messages are quite clear on this. I’ll paraphrase the compiler as it talks to you. Error: Paraphrased: Hey, pal. You’re trying to call a function called shuffle which apparently takes a single parameter of type reference-to-deckOfCards, but there is no such function. Error: … Read more
How to assign multiple classes to an HTML container?
Is it possible to assign multiple classes to a single HTML container? Something like:
What is the difference between private and protected members of C++ classes?
Private members are only accessible within the class defining them. Protected members are accessible in the class that defines them and in classes that inherit from that class. Edit: Both are also accessible by friends of their class, and in the case of protected members, by friends of their derived classes. Edit 2: Use whatever … Read more
Using two CSS classes on one element
If you want two classes on one element, do it this way: Reference it in css like so: Example:
Is it possible to make abstract classes in Python?
Use the abc module to create abstract classes. Use the abstractmethod decorator to declare a method abstract, and declare a class abstract using one of three ways, depending upon your Python version. In Python 3.4 and above, you can inherit from ABC. In earlier versions of Python, you need to specify your class’s metaclass as ABCMeta. Specifying the metaclass has different … Read more