Tooth's e621 Pool Downloader

// ==UserScript==
// @name         Tooth's e621 Pool Downloader
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  Quickly download e621 pools
// @author       ToothAndScale
// @match        https://e621.net/pools/*
// @icon         https://www.google.com/s2/favicons?domain=e621.net
// @grant        GM_download
// ==/UserScript==

(function() {
    'use strict';

    const previewArr = document.querySelectorAll(".post-preview[data-large-file-url]");
    const poolName = document.querySelector(".pool-category-series").innerHTML.replace(/[^a-z0-9\s]/gi, '');
    console.log(poolName);

    if(previewArr && poolName) {
        var links = new Array();
        previewArr.forEach(t => links.push(t.getAttribute("data-large-file-url")));

        var args = new Array();
        links.forEach(t => args.push({url: t, name: poolName + "/" + t.split("/").pop()}));

        let btn = document.createElement("button");
        btn.innerHTML = "Download Pool";
        btn.onclick = () => {
            args.forEach(t => GM_download(t))
        }

        document.querySelector("#page").prepend(btn);
    }


    // Your code here...
})();