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intrepidOlivia / Pinterest Cleanser

// ==UserScript==
// @name         Pinterest Cleanser
// @namespace    http://pixelstomp.com
// @version      3.2
// @description  Removes sponsored posts from Pinterest. Leaves a chunk of whitespace, but maintains the the a e s t h e t i c of your Pinterest algorithm. Updated for Pinterest DOM model as of October 2023
// @author       intrepidOlivia
// @match        *://*.pinterest.com/*
// @copyright 2019, intrepidOlivia (https://openuserjs.org//users/intrepidOlivia)
// @license MIT
// ==/UserScript==

(function() {
    'use strict';
    function hasBeforeContent(element) {
        const content = window.getComputedStyle(element, '::before').getPropertyValue('content');
        return content !== 'none' && content !== '';
    }

    function getBeforeContent(element) {
        const content = window.getComputedStyle(element, '::before').getPropertyValue('content');
        if (content !== 'none' && content !== '') {
          return content;
        } else {
          return null;
        }
    }

    const bulldozer = setInterval(() => {
        const allPins = document.querySelectorAll('div[data-grid-item="true"]');
        allPins.forEach((pin) => {
            const allChildren = pin.querySelectorAll('*');
            // Pinterest has introduced a tricksy mechanism by which the 'Promoted By' text is not part of the DOM but is content injected via CSS.
            // The following operation is pretty compute-heavy as a result, but works in Chrome and Firefox as tested October 2023.
            const childrenWithBefore = Array.from(allChildren).filter(elem => hasBeforeContent(elem)).map(elem => getBeforeContent(elem));
               const joinedContent = childrenWithBefore.join('');
               if (joinedContent.includes('"P""r""o""m""o""t""e""d"" ""b""y"')) {
                 pin.innerHTML = '';
               }
            if (pin.innerText.includes('Promoted by')) {
                pin.innerHTML = '';
            }
        });
    }, 200);
})();