Javascript

The hasOwnProperty returns true if the property is its own property and not inherited.

The Javascript uses the Prototypes to implement the inheritance. In this tutorial, we will learn how to use Prototype to create Inheritance. Inheritance makes code reusable, readable & maintainable by sharing the instance of existing properties & methods across objects

Prototype in Javascript is an object. JavaScript is a prototype-based language and depends on it to implement inheritance. Objects inherit the properties & methods of their Prototype. In this tutorial, we will learn what is Prototype?. How & when JavaScript adds Prototypes to an Object ?. How the Prototype chains are created etc.

This tutorial shows you How to Delete Property from Object JavaScript using the Delete Operator.

Object Properties Object Literal   The Computed Property Name feature allows us to use an expression that returns a valid value as Property Name. We need to enclose the expression inside square brackets( []). Dynamic Property Name In the following example, we create a variable author and store Author Name in it. While creating the book object,