Example of multiple class inheritance

1. Example of class & method with static value

<script>    
    
    //   ================ Office =======================
    //        1.  Mahesh Nayak = Manager
    //        2.  Sunder Lal   = Teeam Leader 
  

   // ==== 1.DEPARTMENT (IT Dept) ====          ==== 2.DEPARTMENT (Sales Dept)  ====      
    //  1. Ramesh Bhardwaj = Manager        1. Manoj Bajpai = Sales Manager
    //  2. Kunal Kapoor =  Team Leader        2. Ankita Thakur = Team Leader
    //  3. Lovely Singh = Designer          3. Anurag Gupta = Sales person
    //  4. Kumud Dikshit = Developer        4. Mamta Neghi  = Sales person
  

  
    class Office{
      constructor(officeManager, OfficeTl){
        this.myofficeManager =  officeManager;
        this.myOfficeTl = OfficeTl;
      }
      office_method(){
        return (`
          <p>Hello, I am <strong>${this.myofficeManager}</strong> and i am Manager

          <p>Hello, I am <strong>${this.myOfficeTl}</strong> and i Team Leader

          `)
      }

    }
    let myOffice = new Office("Mahesh Nayak", "Sunder Lal");    
    document.write(`<h3>This is Office Data</h3> ${myOffice.office_method()}`)


    //IT Dept
    class ItDept extends Office{
      constructor(officeManager, OfficeTl, designerit, develoverit){
        super(officeManager, OfficeTl);
        this.mydesigner = designerit;
        this.mydeveloper =  develoverit;
      }
      ItDept_method(){
        return (`${super.office_method()}
          <p>Hello, I am <strong>${this.mydesigner}</strong> and i am Designer

          <p>Hello, I am <strong>${this.mydeveloper}</strong> and i am Developer

          `)
      }
    }

    let myItDept = new ItDept("Ramesh Bhardwaj", "Kunal Kapoor", "Lovely Singh" , "Kumud Dikshit");
    document.write(`<h3>This is IT Data</h3> ${myItDept.ItDept_method()}`)


    //Sales
    class salesDept extends Office{
      constructor(officeManager, OfficeTl, sales_person1, sales_person2){
        super(officeManager, OfficeTl);
        this.mysales1 = sales_person1;
        this.mysales2 = sales_person2;
        
      }
      salses_method(){
        return (`${super.office_method()}
          <p>Hello, I am <strong>${this.mysales1}</strong> and i am Sales person

          <p>Hello, I am <strong>${this.mysales2}</strong> and i am Sales person

          `)
      }
    }
    let mysales = new salesDept("Manoj Bajpai", "Ankita Thakur", "Anurag Gupta", "Mamta Neghi");
    document.write(`<h3>This is Sales Data</h3> ${mysales.salses_method()}`)
    


</script>