JSFiddle - React, Tailwind, and code Playground

HTML

Player 1<input id='1' type='password'></input><br/>
Player 2<input id='2' type='password'></input><br/>
<button onclick='whoWon()'>Who won</button>

JavaScript

whoWon = function () {
    var num1 = parseInt(document.getElementById('1').value);
    var num2 = parseInt(document.getElementById('2').value);
    
    (num1==num2)?alert('you win'):alert('you lost');
}