OK COVID-19 Vaccine Finder

tampermonkey.js

// ==UserScript==
// @name         OK COVID-19 Vaccine Finder
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  Hides Oklahoma COVID-19 Vaccine search results for clinic locations without any bookings
// @author       Jonathan Yarbor
// @match        https://vaccinate.oklahoma.gov/en-US/covidvaccine-location-map/
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    let lastFire = null;
    const search = document.querySelector('#entity-list-map-locations table tbody');
    var observer = new MutationObserver(function(mutations) {
        const now = new Date().getTime();
        if(lastFire !== null && (now - lastFire) < 500){
            return;
        }
        lastFire = now;
        setTimeout(function(){
            const results = document.querySelectorAll("#entity-list-map-locations table tbody tr td");
            let hidden = 0;
            results.forEach(function(element){
                if(element.innerText.includes('No available')){
                    element.style.display = 'none';
                    hidden++;
                }
            });
            const oldResults = document.querySelector('#hidden-results');
            if(oldResults){
                oldResults.remove();
            }

            var td = document.createElement('td');
            td.innerText = `${hidden} results have no bookings.`;
            var tr = document.createElement('tr');
            td.id = 'hidden-results';
            tr.appendChild(td)
            search.appendChild(tr);
        }, 100);
    });
    observer.observe(search, {childList: true, characterData: true, subTree: true });
})();