Userscript for MangaDex Forums: set "Search: This thread" automatically

[andrybak]

It's very rare for me to search all of MangaDex Forums, so I wrote a tiny userscript to switch the search UI to "Search: This thread" automatically.

The userscript can be installed from Greasy Fork: https://greasyfork.org/en/scripts/566311-mangadex-forums-search-helper

Spoiler: snapshot of version 1, if you don't want to use Greasy Fork

// ==UserScript==
// @name         MangaDex Forums: search helper
// @namespace    https://andrybak.dev
// @version      1
// @description  Helps with search on the MangaDex Forums
// @author       Andrei Rybak
// @license      MIT
// @match        https://forums.mangadex.org/threads/*
// @icon         https://forums.mangadex.org/favicon.ico
// @require      https://cdn.jsdelivr.net/gh/rybak/userscript-libs@dc32d5897dcfa40a01c371c8ee0e211162dfd24c/waitForElement.js
// @grant        none
// ==/UserScript==

/*
 * Copyright (c) 2026 Andrei Rybak
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

/* jshint esversion: 6 */
/* globals waitForElement */

(function() {
    'use strict';

    waitForElement('form[action="/search/search"] select[name="constraints"]').then(theSelect => {
        theSelect.children[0].selected = false;
        theSelect.children[1].selected = false;
        theSelect.children[2].selected = false;
        theSelect.children[3].selected = true;
    });
})();