![]() How do you use composition to achieve code reuse in JavaScript?Ĭomposition is a way of combining small pieces of code to create larger pieces of code. This is typically done by using the prototype property of an object to point to another object, which will then be used as the blueprint for the first object. Inheritance in JavaScript is when one object is able to inherit the properties and methods of another object. How would you describe inheritance in JavaScript? This allows for greater control over how that data and functionality is used and accessed, as well as a way to hide implementation details from outside code. How would you describe encapsulation in JavaScript?Įncapsulation in JavaScript refers to the idea of wrapping up data and functionality into a single unit, usually an object. Polymorphism is the ability of an object to take on different forms depending on the context in which it is used. Inheritance is the process of creating a new object that inherits the properties of an existing object. Encapsulation is the process of hiding data and methods inside of an object so that they can only be accessed by other code inside the object. The main features of OOP are encapsulation, inheritance, and polymorphism. Can you give me a brief overview of the different features of OOP? Objects can also be passed around as arguments to functions, or be returned from functions, allowing for a great deal of flexibility and code reuse. These objects can contain data, as well as code that is executed in order to manipulate that data. Object-oriented programming is a programming paradigm that is based on the concept of objects. Here are 20 commonly asked JavaScript Object-Oriented Programming interview questions and answers to prepare you for your interview: 1. JavaScript Object-Oriented Programming Interview Questions and Answers In this article, we’ll discuss some common JavaScript OOP interview questions and how to answer them. It’s a popular approach to programming, and knowing how to answer questions about it can help you impress the interviewer and land the job. OOP is a programming paradigm that uses objects and their relationships to each other to design and write programs. ![]() If you’re interviewing for a position that involves JavaScript programming, you may be asked questions about object-oriented programming (OOP).
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