Hide promoted Twitter posts

twitter-promoted-hider.user.js

// ==UserScript==
// @name        Twitter-Promoted-Hider
// @description Removes posts marked as promoted from your feed
// @match       *://twitter.com/*
// @run-at      document-end
// ==/UserScript==

setInterval(() => {
    const queryEls = document.querySelectorAll("[data-testid='placementTracking']");
    queryEls.forEach((el, key) => {
        recurseParentAndCheck(el);
    });
}, 500);

const recurseParentAndCheck = (element) => {
    const attr = element.getAttribute("data-testid");
    if (attr && attr === "cellInnerDiv") {
        element.style.display = "none";
        return;
    }
    const parent = element.parentElement;
    if (!!parent) {
        recurseParentAndCheck(parent);
    } else {
        return;
    }
}