What is super() function in JavaScript?

Javascript Web Development Front End Technology

Use the super() function to call the constructor of the parent class and access functions on an object's parent class.

Example

You can try to run the following code to implement super()

<!DOCTYPE html>
<html>
   <body>
      <script>
         class Department {
            constructor() {}
            static msg() {
               return 'Hello';
            }
         }
         class Employee extends Department {
            constructor() {}
            static displayMsg() {
               return super.msg() + ' World!';
            }
         }
         document.write(Employee.displayMsg());
      </script>
   </body>
</html>