TripperClicker

index.js

// ==UserScript==
// @name Simple Tampermonkey Script
// @version 1.0
// @match https://vk.com/classifieds?w=*
// @grant window.close
// ==/UserScript==

(() => {
    const domObserver = new MutationObserver((mutations) => {
        mutations.forEach(mutation => {
            mutation.addedNodes.forEach(node => {
                document.dispatchEvent(new CustomEvent('addedNode', {
                    detail: node
                }));
            });
        });
    });

    domObserver.observe(document.querySelector('body'), {subtree: true, childList: true});

    function whenIsReady(element, callback) {
        const $element = document.querySelector(element);

        if ($element) {
            callback($element);
        } else {
            document.addEventListener('addedNode', (e) => {
                if (document.querySelector(element) === e.detail) {
                    callback(e.detail);
                }
            });
        }
    }

    // main code
})();