Inheritence in Javascript

Example of Inheritence in Javascript:

function Person(name) {

this.name = name;

this.printName = function() {

alert("Name is "+this.name);

}

}

function Employee(name, sal) {

Person.call(this, name);

this.sal = sal;

this.printSalary = function() {

alert("Salary is "+this.sal);

}

}

function NonFunctionalEmployee(name, sal, hours) {

Employee.call(this, name, sal);

this.hours = hours;

this.printHours = function() {

alert("Number of hours of work "+this.hours);

}

}

var nonFunctionalEmp = new NonFunctionalEmployee("XYZ", 3333, 12);

nonFunctionalEmp.printName();

nonFunctionalEmp.printSalary();

nonFunctionalEmp.printHours();

call(this) is the main api which helps in inheritence.

The "this" parameter specifies the context in which the call() should get executed.