classes.js

class student{
    constructor(student_args){
        /* Of the format
           {
            name:"",
            city:"".
            gender:"",
            work:"",
            age:""
            }
       */
        this.name = student_args.name
        this.city = student_args.city
        this.gender = student_args.gender
        this.work = student_args.work
        this.age = student_args.age
       }
    get_details(){
         return [this.name,this.city,this.gender,this.work,this.age]
    }
}

class tvb{
     constructor(args){
         let each;
         this.student_class = {}
         for (each=0;each<args.length;each++){
             this.student_class["student"+String(each)] = new student(args[each])
         }
     }
     get_details(){
          return this.student_class
         }
}

inputs = [{name:"arun ghontale",city:"bangalore",gender:"male",work:"ML",age:"22"},{name:"vijay rangan",city:"bangalore",gender:"male",work:"FS",age:"29"}]

console.log("TVB_class")
TVB = new tvb(inputs)
TVB.get_details()

console.log("student class")
console.log(TVB.student_class)
let each = 0;
for (each = 0;each < TVB.student_class.length; each++){
    console.log(TVB.student_class[each])
    console.log(TVB.student_class.get_details())
}