JSFiddle - React, Tailwind, and code Playground

by Luis Martin

HTML

<input class="email" type="mail" placeholder="introduce tu email" >
<button class="comprobarEmail" onclick="comprobarEmail()">Comprobar!</button>
<p class="resultado"></p>

JavaScript

var emails = ["[email protected]", "[email protected]"]

function comprobarEmail(){



if(emails.indexOf(document.querySelector("input.email").value)> -1){

  document.querySelector("p.resultado").innerText = "Ganador"
  }else{
  document.querySelector("p.resultado").innerText = "Perdedor"
  
  }

}