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Amazon: Sort by Review Count Rank

Adds an option to sort search results by number of reviews

  1. // ==UserScript==
  2. // @name         Amazon: Sort by Review Count Rank
  3. // @namespace    http://felixfischer.com/
  4. // @version      1.2
  5. // @description  Adds an option to sort search results by number of reviews
  6. // @author       Felix Fischer
  7. // @supportURL   https://github.com/felixfischer/sort-amazon-results-by-review-count/issues
  8. // @include      *www.amazon.*
  9. // @run-at       document-start
  10. // @grant        none
  11. // ==/UserScript==
  12.  
  13. (function() {
  14.  
  15.     function addOption() {
  16.         var sortDropdown = document.getElementById('s-result-sort-select');
  17.         var hasOption = document.getElementById('sort-rcr');
  18.         if (sortDropdown && !hasOption) {
  19.             console.log('insert sort option: Review Count Rank');
  20.             var searchParams = new URLSearchParams(window.location.search);
  21.             searchParams.set('s','review-count-rank');
  22.             var newParams = searchParams.toString();
  23.             var option= document.createElement("option");
  24.             var newOption = '<option data-url=/s?'+newParams+' value="review-count-rank" id="sort-rcr">Review Count Rank</option>';
  25.             sortDropdown.insertAdjacentHTML('beforeend', newOption);
  26.         }
  27.     }
  28.  
  29.     setInterval(addOption, 1000);
  30.  
  31. })();