attempt to counteract popular search engine subversions

greasemonkey/DDG search engine counter optimization.js

@@ -0,0 +1,31 @@
+// ==UserScript==
+// @name     DDG search engine counter-optimization
+// @version  1
+// @grant    none
+// @description SEO has really subverted search engines
+// @include /^https?://(www\.)?duckduckgo.com/
+// @namespace adamrgrey.com
+// @license  MIT
+// ==/UserScript==
+
+let thisYear = new Date().getYear() + 1900;
+let searchEngineConfounders = ["in " + thisYear, "in " + (thisYear - 1), "in " + (thisYear), "best", "top 10"];
+
+window.onload = function(event) {
+  clearInput(document.querySelector("#search_form_input_homepage"));
+  clearInput(document.querySelector("#search_form_input"));
+};
+
+function clearInput(input){
+  if(input === null){
+    return;
+  }
+  let currentQuery = input.value;
+ 
+  searchEngineConfounders.forEach((elem) => {
+    let subtractor = "-\"" + elem + "\"";
+    if(currentQuery.indexOf(subtractor) < 0){
+      input.value += " " + subtractor;
+    }
+  });
+}