Krylik / PlacePixelPlacerPinger

// ==UserScript==
// @name         PlacePixelPlacerPinger
// @namespace    http://tampermonkey.net/
// @version      0.2
// @description  simple browser alert() when you can place a pixel again on r/place
// @author       Krylik
// @match        https://www.reddit.com/place?webview=true
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    document.getElementById("place-timer").addEventListener("DOMSubtreeModified",function(e){"00:01" == e.target.innerText && alert("Pixel Time!")});
})();