JavaScript classes are templates for creating objects that encapsulate data and behaviors, promoting code reusability and maintainability. They enable object-oriented programming by allowing properties and methods to be shared among instances. Constructors initialize objects, while inheritance extends class functionality, and methods define actions. These features contribute to structured, reusable, and maintainable code in web applications.
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JavaScript classes serve as templates for creating objects, promoting code reusability and maintainability
Constructor Method
The constructor method initializes new objects and allows for the assignment of unique properties to each instance
Methods
Methods provide behaviors for class instances and enhance the modularity of code
Static Properties and Methods
Static properties and methods belong to the class itself and promote code organization
Accessor Properties
Accessor properties control access to class properties and enhance functionality
Inheritance
Inheritance allows classes to extend functionality from other classes, promoting code reuse and hierarchy
The constructor method initializes objects and allows for customization through parameters
Diverse Objects from Same Template
The constructor method allows for the creation of diverse objects from the same class template
Foundation for Advanced Concepts
The constructor method is the foundation for advanced OOP concepts such as inheritance and polymorphism
The constructor method is defined within the class body and uses the 'this' keyword to refer to the new object being created
Inheritance allows classes to inherit properties and methods from other classes, promoting code reuse and hierarchy
'extends' Keyword
The 'extends' keyword creates a subclass that inherits from a superclass
'super' Keyword
The 'super' keyword is used to invoke functions from the superclass within subclass constructors and methods
Inheritance streamlines the creation of class hierarchies and promotes code reuse
Methods define the actions that objects can perform and enhance the modularity of code
Methods are defined within the class body and are invoked by class instances
Method Chaining
Method chaining allows for more readable and efficient code by calling multiple methods in a single statement
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Introduction year of JavaScript classes
Introduced in ECMAScript 2015
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Role of a class in JavaScript
Serves as a template for creating objects
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Benefits of using JavaScript classes
Promotes code reusability and maintainability
