haha
// ==UserScript==
// @name textarea jsfuck
// @namespace http://tampermonkey.net/
// @version 1337
// @license MIT
// @description haha
// @author xmr
// @include http://www.jsfuck.com/
// @icon https://r.n-mc.co/skin/face.png?id=522edbf8c7630e5b&scale=256
// @grant none
// ==/UserScript==
(async function() {
'use strict';
let input = await document.getElementById("input");
let textarea = await document.createElement("textarea");
textarea.id = "input";
textarea.value = "alert(1);";
await input.parentNode.replaceChild(textarea, input);
})();