AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |
Back to Blog
Oops languages2/12/2024 JavaScript is best known for web page development but it is also used in a variety of non-browser environments. Polymorphism can be achieved by method overriding and method overloading So a boy can perform different operations at the same time. In real life, for example, a boy at the same time may be a student, a class monitor, etc. Polymorphism means the same function with different signatures is called many times. Polymorphism: Polymorphism is one of the core concepts of object-oriented programming languages. In the above code, the super keyword is used to refer to the immediate parent class’s instance variable. Method Overriding allows a method in a child class to have the same name(polymorphism) and method signature as that of a parent class. Note: The Person and Student objects both have the same method (i.e toString()), this is called Method Overriding. Output: In this example, we define a Person Object with certain properties and methods and then we inherit the Person Object in the Student Object and use all the properties and methods of the person Object as well as define certain properties and methods for the Student Object. JavaScript classes provide a much simpler and clearer syntax to create objects and deal with inheritance.Įxample: Let’s use ES6 classes then we will look at the traditional way of defining an Object and simulate them as classes. The class syntax is not introducing a new object-oriented inheritance model to JavaScript. JavaScript classes, introduced in ECMAScript 2015, are primarily syntactical sugar over JavaScript’s existing prototype-based inheritance. Note: Even the classes provided by ECMA2015 are objects. To be more precise, JavaScript is a prototype-based Object Oriented Language, which means it doesn’t have classes, rather it defines behaviors using a constructor function and then reuses it using the prototype. A class can have many Objects because the class is a template while Objects are instances of the class or the concrete implementation.īefore we move further into implementation, we should know unlike other Object Oriented languages there are no classes in JavaScript we have only Object. Software Engineering Interview QuestionsĬlasses : Classes are blueprints of an Object.Top 10 System Design Interview Questions and Answers.Top 20 Puzzles Commonly Asked During SDE Interviews.Commonly Asked Data Structure Interview Questions.Top 10 algorithms in Interview Questions.Top 20 Dynamic Programming Interview Questions.Top 20 Hashing Technique based Interview Questions.Top 50 Dynamic Programming (DP) Problems.Top 20 Greedy Algorithms Interview Questions.Top 100 DSA Interview Questions Topic-wise.
0 Comments
Read More
Leave a Reply. |