Epitaph - Add 'Hide Civ' button - Tampermonkey script

epitaph-hide-dead-civs.user.js

// ==UserScript==
// @name         Add 'Hide Civ' Button
// @version      0.1
// @namespace    https://gist.github.com/SteveHere/1a19df5242802df3edcc7d34d5c62523
// @description  Injects a 'Hide Civ' button for each dead civ
// @author       SteveHere
// @match        https://mkremins.github.io/epitaph/
// @icon         none
// @grant        none
// ==/UserScript==

let hideCiv = (e) => { e.target.parentElement.style = "display: none;"; };

let makeButton = () => { 
  let b = document.createElement('button'); 
  b.innerText = "Hide Civ"; 
  b.onclick = hideCiv; 
  return b;
};

window.buttonInjector = setInterval(function() {
    [...document.getElementsByClassName('extinct')].filter(
      el => el.getElementsByTagName('button').length === 0
    ).forEach(el => {
      el.insertBefore(makeButton(), el.children[0]);
    });
}, 2000);