function Developer(name , experience) {
    this.name = name;
    this.type = "Developer";
    this.experience = experience;
}
function Tester(name, experience) {
    this.name = name;
    this.type = "Tester";
    this.experience = experience;
}
function EmployeeFactory() {
    this.create = (name, type) => {
        switch (type) {
            case 1:
                return new Developer(name,4);
                break;
            case 2:
                return new Tester(name,6);
                break;
        }
    }
}

function say() {
    console.log("i am " + this.name + " i am a " + this.type +" and having a "+ this.experience +"years of experience ");
}

let employees = [];
const employeeFactory = new EmployeeFactory();
employees.push(employeeFactory.create("Sam", 1));
employees.forEach((employee) => {
    say.call(employee);
});