aoe2.net tampermonkey script to add OR search

// ==UserScript==
// @name         AOE2.net REGEX Search
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        https://aoe2.net/
// @icon         https://www.google.com/s2/favicons?domain=aoe2.net
// @grant        none
// @run-at       document-end

// ==/UserScript==
(function() {
    'use strict';
    var TIMEOUT_VALUE = 1000;
    setTimeout(firstStuff, TIMEOUT_VALUE);
    // IMPORTANT: Set a timeout because otherwise i can't disable or hide the oldsearchbox, it keeps coming up as null
    // maybe its using ajax or something i dont rly know.. timeout is the dumb easy way to fix it
    ////
})();

function SearchIt() {
    var TABLE = document.querySelector("table#aoe2de-lobbies-table");
    var ROWS = TABLE.rows;
    var NEWSEARCHBOX = document.getElementById("regex-search");
    // note: I should just make a new fragment and then set its display to ""
    // setting each row's display one at a time will cause lots of page reflow
    // that's what i did with my hp business outlet filter

    for (let i = ROWS.length - 1; i >= 1; i--) {
        let row = ROWS[i];
        let cell1 = row.cells[1];
        let cell3 = row.cells[3];

        let ALLCAPS1 = cell1.innerHTML.toUpperCase();
        let ALLCAPS3 = cell3.innerHTML.toUpperCase();
        let search1 = ALLCAPS1.search(NEWSEARCHBOX.value.toUpperCase());
        let search2 = ALLCAPS3.search(NEWSEARCHBOX.value.toUpperCase());

        // string.search returns -1 if it fails to find a match
        if(search1 === -1 && search2 === -1) {
            //hideRow(row);
            row.style.display = "none";
        } else {
            //showRow(row);
            row.style.display = "";
        }
    }
}

function firstStuff(){
    // Cell 0 is ignorable
    // Cell 1 is Type (Random Map, Scenario, ..)
    // Cell 2 is ignorable
    // Cell 3 is Lobby Name
    // Cell 4 is Location (Coastal, Arabia, ..)

    // Custom Input with OR implemented...
    //document.querySelector("table#aoe2de-lobbies-table").rows[1].cells[3].innerHTML.search("CBA|Michi")
    // REGEX SEARCH


    var OLDSEARCHBOX = document.querySelector("div label input.form-control.form-control-sm");
    var SEARCHNODE = document.querySelector("div#aoe2de-lobbies-table_filter label");
    OLDSEARCHBOX.disabled= "true";
    SEARCHNODE.removeChild(OLDSEARCHBOX);
    var NEWSEARCHBOX = document.createElement("input");
    NEWSEARCHBOX.id = 'regex-search';
    NEWSEARCHBOX.setAttribute("type", "text");
    NEWSEARCHBOX.onkeyup = SearchIt;
    SEARCHNODE.appendChild(NEWSEARCHBOX);

}