class use in es6

Class.js

class name{
  constructor(a,b){
    this.a =a ;
    this.b = b;
  }
  new(){
    console.log(`${this.a} and ${this.b}`);
  }
}

var dummy = new name("nishant",27);
dummy.new();
// given below code will be used for extending class
class zname extends name{
  constructor(){
    super("arch",26)
  }
}

var zdummy = new zname();
zdummy.new();