1 files changed, 11 insertions, 1 deletions
diff --git a/app/assets/javascripts/search/store/utils.js b/app/assets/javascripts/search/store/utils.js
index b00b9bb0f2e..6b56ff0b5e5 100644
--- a/app/assets/javascripts/search/store/utils.js
+++ b/app/assets/javascripts/search/store/utils.js
@@ -1,5 +1,5 @@
 import AccessorUtilities from '../../lib/utils/accessor';
-import { MAX_FREQUENT_ITEMS, MAX_FREQUENCY } from './constants';
+import { MAX_FREQUENT_ITEMS, MAX_FREQUENCY, SIDEBAR_PARAMS } from './constants';
 
 function extractKeys(object, keyList) {
   return Object.fromEntries(keyList.map((key) => [key, object[key]]));
@@ -80,3 +80,13 @@ export const mergeById = (inflatedData, storedData) => {
     return { ...stored, ...data };
   });
 };
+
+export const isSidebarDirty = (currentQuery, urlQuery) => {
+  return SIDEBAR_PARAMS.some((param) => {
+    // userAddParam ensures we don't get a false dirty from null !== undefined
+    const userAddedParam = !urlQuery[param] && currentQuery[param];
+    const userChangedExistingParam = urlQuery[param] && urlQuery[param] !== currentQuery[param];
+
+    return userAddedParam || userChangedExistingParam;
+  });
+};