Recent questions tagged oop

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oop - Javascript: Calling object methods within that object

What is the best design pattern for achieving the following (which doesn't work)? var obj = (function() { ... you can help my overall thinking. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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979 views

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oop - how to measure execution time of functions (automatically) in Python

I need to have a base class which I will use to inherit other classes which I would like to measure ... needs to dealing with measuring time See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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957 views

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oop - Reasons to use private instead of protected for fields and methods

This is a rather basic OO question, but one that's been bugging me for some time. I tend to avoid using the ... do you also think it's overused? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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oop - Is subclassing in Objective-C a bad practice?

After reading lots of blogs, forum entries and several Apple docs, I still don't know whether extensive subclassing in ... And why or why not? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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783 views

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oop - Object-oriented programming in a purely functional programming context?

Are there any advantages to using object-oriented programming (OOP) in a functional programming (FP) context? I ... examples on the issue. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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989 views

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oop - What is the difference between polymorphism and duck typing?

I'm a little confused with the two terms, here's what I know: Polymorphism is the ability of object of different ... . Thanks a lot in advance! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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oop - Why are Haskell algebraic data types "closed"?

Correct me if I'm wrong, but it seems like algebraic data types in Haskell are useful in many of the ... way would be much more extensible. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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890 views

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oop - Python dynamic inheritance: How to choose base class upon instance creation?

Introduction I have encountered an interesting case in my programming job that requires me to implement a ... unexplored Python territory? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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915 views

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oop - How to set up JavaScript namespace and classes properly?

It seems there are so many ways to set up a JavaScript application so it is confusing as to which one is ... of classes talking to each other. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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oop - When does it pay off to use S4 methods in R programming

I program regularly in R in a professional context, and I write packages for clients or co-workers as well ... of using S4 methods specifically. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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939 views

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oop - Private members in CoffeeScript?

Does somebody know how to make private, non-static members in CoffeeScript? Currently I'm doing this, which ... without getting "fancy"? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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971 views

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oop - Creating an empty object in Python

Are there any shortcuts for defining an empty object in Python or do you always have to create an instance of ... object usable for duck typing. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

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oop - Best practice: ordering of public/protected/private within the class definition?

I am starting a new project from the ground up and want it to be clean / have good coding standards. In what order ... . I know. I'm a luddite. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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854 views

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oop - Why should the observer pattern be deprecated?

I've noticed that my dependency injected, observer-pattern-heavy code (using Guava's EventBus) is often significantly ... of the paper here. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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980 views

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oop - C# : assign data to properties via constructor vs. instantiating

Supposing I have an Album class : public class Album { public string Name {get; set;} public string Artist {get; ... "Artistus", Year = 2013 }; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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781 views

1 answer

oop - Prototypical OO in JavaScript

TL;DR: Do we need factories/constructors in prototypical OO? Can we make a paradigm switch and drop them ... need factories to overcome them. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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879 views

1 answer

oop - Are FP and OO orthogonal?

I have heard this time and again, and I am trying to understand and validate the idea that FP and OO ... the orthogonality of the two methods? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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997 views

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oop - encapsulation vs abstraction real world example

For an example of encapsulation i can think of the interaction between a user and a mobile phone. The user does ... shed some light on this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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846 views

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oop - What’s the point of inheritance in Python?

Suppose you have the following situation #include <iostream> class Animal { public: virtual void speak() = 0; } ... similar post on this regard. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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oop - Difference between a Factory, Provider and a Service?

What is the difference between the terms Factory, Provider and Service? Just getting into NHibernate and its Repository ... (POCO classes, etc). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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877 views

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oop - Coupling and cohesion

I'm trying to boil down the concepts of coupling and cohesion to a concise definition. Can someone give me a ... have a good, short example? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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883 views

1 answer

oop - DDD - Persistence Model and Domain Model

I am trying to learn domain-driven design (DDD), and I think I got the basic idea. But there is ... persistence objects from domain objects? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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oop - Distinguishing between delegation, composition and aggregation (Java OO Design)

I am facing a continuing problem distinguishing delegation, composition and aggregation from each other, and identifying ... another object(s)? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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876 views

1 answer

oop - What is difference between functional and imperative programming languages?

Most of the mainstream languages, including object-oriented programming (OOP) languages such as C#, Visual ... functional programming languages? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

1 answer

oop - Warning: mysqli_query() expects parameter 1 to be mysqli, null given in C:xampphtdocsFinaldata.php on line 14

I need help to figure out why this is error <?php class data { private $db; public $nama, $password, $alamat, $jk, ... ); return $view; } } ?> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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922 views

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oop - Generic field polymorphism in Java

I have really got confused with Generics please help me with my situation: public <M extends AgeFactor> void ... help me getting over Generics. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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902 views

1 answer

oop - Is there a way to determine what type a class is an instance of in Java?

Say I have 3 classes like so: class A {} class B extends A {} class C extends A {} Would it ... there's no substantial differences between them. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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838 views

1 answer

oop - Does OO Javascript have a `to_bool` or `__len__` equivalent?

Does OO JS have a mechanism for casting instance objects to boolean? I would like to be able to use custom instance ... literals "" and zero 0? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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