Hide "Follow posts" for Facebook.

Get rid of those annoying posts from those i'm not following

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(Tôi đã có Trình quản lý tập lệnh người dùng, hãy cài đặt nó!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Hide "Follow posts" for Facebook.
// @version      1.2
// @description  Get rid of those annoying posts from those i'm not following
// @match        https://www.facebook.com/*
// @grant        none
// @author       Cuong Tran
// @namespace https://greasyfork.org/en/users/1291782-tran-huu-phu-cuong
// ==/UserScript==

//Whenever the page changes
(function() {
    function onElementInserted(containerSelector, elementSelector, callback) {
        var onMutationsObserved = function(mutations) {
            mutations.forEach(function(mutation) {
                if (mutation.addedNodes && mutation.addedNodes.length) {
                    [].map.call(mutation.addedNodes, function(el) {
                        if (!el || !el.querySelector) return;
                         // console.log('New inserted element', el)
                          callback(el)
                        if (el.classList.contains('html-div')) {
                         // callback(el)
                        } else {
                          // var elements = el.querySelectorAll(elementSelector);
                          //for (var i = 0, len = elements.length; i < len; i++) {
                           // callback(elements[i]);
                          // }
                        }
                    });
                }
            });
        };

        var target = document.querySelector(containerSelector);
        var config = { childList: true, subtree: true };
        var MutationObserver = window.MutationObserver || window.WebKitMutationObserver;
        var observer = new MutationObserver(onMutationsObserved);
        observer.observe(target, config);
    }


    onElementInserted('body', 'div', function(element) {
        const els = Array.from(element.querySelectorAll('div[role="button"]'));

        if(els.some(el => el.innerHTML.contains('Follow'))) {
            element.firstChild.style.display = 'none';
            const newdiv = document.createElement('div');
            newdiv.innerHTML = `
            <div style="background: #fff3cd; margin-top: 4px; border: 1px solid #ffc107; padding: 8px 12px; border-radius: 4px; color: #856404; font-size: 14px;">1 post hidden. Rule: UNFOLLOWING AUTHOR</div>
            `
            element.appendChild(newdiv);
        }
        // if (element.innerText.substring(0,2) !== 'Ad') return;
        // console.log(element);
        //    element.style.display = "none";
    });

})();