JSFiddle - React, Tailwind, and code Playground

by Wentz Wu

JavaScript

function Person(){
    alert("Person");
    this.name = "anonymous";
    this.age = 0;
}

function Friend(){
    alert("Friend");
    this.birthday = "0001/01/01";
}

//Friend.prototype = new Person();
//Friend.prototype.constructor = test;

function test(){alert("test");}

var bill = new Friend();
alert(bill.name);