What I believe is this: Cohesion refers to the degree to which the elements of a module/class belong together, it is suggested that the related code should be close to each other, so we should strive for high cohesion and bind all related code together as close as possible. It has to do with the … Read more
What is the difference between an Instance and an Object? Is there a difference or not?
It’s not a matter of which is the best, but of when to use what. In the ‘normal’ cases a simple question is enough to find out if we need inheritance or aggregation. If The new class is more or less as the original class. Use inheritance. The new class is now a subclass of … Read more
No. Objects in assignment statements are immutable. R will copy the object not just the reference. (proviso: the statement above is true for R primitives, e.g., vectors, matrices), and also for functions; I cannot say for certain whether it’s true for all R objects–just most of them, as well as the vast majority of the … Read more
There’s no exact counterpart to Java’s getClass() in JavaScript. Mostly that’s due to JavaScript being a prototype-based language, as opposed to Java being a class-based one. Depending on what you need getClass() for, there are several options in JavaScript: typeof instanceof obj.constructor func.prototype, proto.isPrototypeOf A few examples: Note: if you are compiling your code with Uglify it will change non-global class names. To … Read more
Yes. In fact Axel Schreiner provides his book “Object-oriented Programming in ANSI-C” for free which covers the subject quite thoroughly.
Do you mean this? In this case, Bar is the sub class.
Classes are the pillar of Object Oriented Programming. OOP is highly concerned with code organization, reusability, and encapsulation. First, a disclaimer: OOP is partially in contrast to Functional Programming, which is a different paradigm used a lot in Python. Not everyone who programs in Python (or surely most languages) uses OOP. You can do a … Read more
Polymorphism is one of the tenets of Object Oriented Programming (OOP). It is the practice of designing objects to share behaviors and to be able to override shared behaviors with specific ones. Polymorphism takes advantage of inheritance in order to make this happen. In OOP everything is considered to be modeled as an object. This … Read more
To get a fully independent copy of an object you can use the copy.deepcopy() function. For more details about shallow and deep copying please refer to the other answers to this question and the nice explanation in this answer to a related question.