Home/ Questions/Q 7680333
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-31T18:05:28+00:00

I am currently learning Object oriented Javascript but it seems that the alert is

  • 0

I am currently learning Object oriented Javascript but it seems that the alert is not working. what is the problem here?

<

html>
 <head>
  <script>

   function professor(name, myLecture){
        this.name = name;
        this.myLecture = myLecture;
   }

   professor.prototype.display = function(){
        return this.name + " is teaching " + this.myLecture;
   };

   function subjectList(subject){
        this.subject = subject;
   }

   subjectList.prototype.showAll= function(){
            var str = " " ;
            for(var i = 0 ; i<subject.length; i++ )
            str+= this.subject[i].display();
            return str;
   };

   var ListOfSubs = new subjectList([
        new professor("Muy","Obprog")
   ]);

   alert(ListOfSubs.showAll());

  </script>
   <body>
   </body>
 </head>
</html>
Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Should be this.subject.length instead of subject.length.

    • 0