Can you explain the distinction between an object oriented programming language and an object based programming language? Plus, would you consider JavaScript to be object-oriented or object-based?
Can you explain the distinction between an object oriented programming language and an object based programming language? Plus, would you consider JavaScript to be object-oriented or object-based?
Wikipedia explains:
In the realm of computer science, object-based programming can be understood in two distinct ways:
It may refer to a form of object-oriented programming that includes certain limitations such as no implicit inheritance, lack of polymorphism, or a restricted set of objects like GUI components.
Alternatively, it can describe systems based on prototypes rather than classes, known as prototype-based systems.
Notably, Javascript operates under an object-based paradigm.
Message Passing is the foundation of Object Oriented programming, without relying on classes or inheritance.
Although Dr. Alan Kay originally coined the term "Object oriented," he clarified that OOP is about messaging rather than focusing on classes like C++ and Java do. According to Dr. Alan Kay, OO involves only messaging, local retention, protection, and hiding of state-process, with extreme late-binding of all components.
Languages like Erlang, LISP, and Smalltalk embody true Object Oriented principles, as opposed to C++, Java, and C# which are more object-based in nature.
Understanding Object-oriented vs Object-based Languages
When it comes to programming, the distinction between object-oriented and object-based languages is crucial. While object-oriented languages like C++, C#, and Java offer a comprehensive set of features that adhere to OOP principles, object-based languages such as JavaScript and VB have inherent limitations.
Diving Deeper into Object-oriented Language
An object-oriented language lacks an in-built object, yet encompasses all aspects of OOP. Developers working with languages like C++, C#, and Java can leverage powerful tools for creating robust software solutions.
Exploring Object-based Language
In contrast, an object-based language like JavaScript introduces constraints on utilizing advanced OOP concepts like Polymorphism and Inheritance. Despite this limitation, languages like Javascript and VB come equipped with pre-defined objects such as the window object.
Upon my research, I came across two different viewpoints on the concept of object-oriented languages.
Initially, it is crucial to establish a definition for what constitutes an object-oriented language.
Due to my limited proficiency in English, I recommend checking out Chinese Wikipedia if you prefer reading in Chinese.
Here is an example showcasing the practical use of a JavaScript class: click here
When executed, this code will display the following output in the console: view result
The proto makes a reference to the prototype of Animals (which ultimately references the Object prototype). This illustrates that the constructor defines essential attributes, while anything beyond it (such as sing() and dance()) serves as additional features, or prototypes.
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