JavaScript Objects

JavaScript is an object-oriented programming (OOP) language. A programming language can be called object-oriented if it provides developers with four important features –

Encapsulation – the ability to store related information, whether data or methods, together with objects. Aggregation – the ability to store something inside another object.

Inheritance – the ability of a class to depend on another class (or several classes) for some of its properties and methods. Polymorphism – the ability to write functions or processes that work in different ways.

Constituents are attributes. If an attribute has a function, it is considered a method of the object, otherwise, the attribute is considered a property.

Object Properties

An object property can be one of the three primitive data types or one of the common data types, such as an object. Object properties are variables that are used internally within the object method, but can also be global variables that are used on all pages.

Object Methods

A method is a function that allows the object to do something or act on it. There is a small difference between a function and a method – a function is an independent instruction in a process that is linked to an object and can be described by this article.

A useful method for any object by displaying the contents of the object on the screen to perform complex mathematical operations in one part of the local area.

User-Defined Objects

All user-defined and built-in objects are children of Object objects.

The Object() Constructor

A developer is a person who creates and initiates things. JavaScript provides a constructor function called Object() to construct the object. The return value of constructor() is assigned to a variable.

The variable contains a authority to the new object. The property assigned to the object is not a variable and is not defined using the var keyword.

Defining Methods for an Object

The previous examples show how the constructor creates the object and allocates the property. But you have to complete the specification by assigning a path to it.