JSFiddle - React, Tailwind, and code Playground

HTML

abc

JavaScript

class User {
	constructor(id, name, age) {
  
  }
}

class Buyer extends User {
	constructor(id, name, age, purchaseHistory) {  	
    super(id, name, age, 25000);
    this.purchaseHistory = purchaseHistory;
  }
  
  addToPurchaseHistory(purchase) {
  	console.log(`user = ${this.name} purchased ${purchase}`);
    this.purchaseHistory.push(purchase);
  }
}

user = new Buyer(1, "abc", 10, 1500);
console.log(user);
console.log("abc");