extends jas code example

Example 1: extends in js

The extends keyword is used to create a child class of another class (parent). 
The child class inherits all the methods from another class. Inheritance is 
useful for code reusability: reuse properties and methods of an existing class 
when you create a new class.

Example 2: extends javascript

The extends keyword is used to create a child class of another class (parent). The child class inherits all the methods from another class. Inheritance is useful for code reusability: reuse properties and methods of an existing class when you create a new class.