JSFiddle - React, Tailwind, and code Playground

by marlanga

HTML

<button id="boton">Presioname</button>

JavaScript

//window.onload=function(){
    var boton=document.getElementById("boton");
    boton.onclick=function(){
        if (!this.presionado)
        {
            this.presionado=true;
            alert("Primera vez");
        }
    };
//}