rollback and fix

frontend/files/app.js

@@ -9,26 +9,28 @@ function init() {
     .then((books) => {
       // prepare response
       books.forEach(apiResponseParsing);
-      document
+      document.getElementById("search").addEventListener("input", (e) => {
-        .getElementById("search")
-        .addEventListener("input", triggerUpdate);
-      document
-        .getElementById("childrens")
-        .addEventListener("change", triggerUpdate);
         renderTable(
-        search(books, "", document.getElementById("childrens").checked)
+          search(
+            books,
+            e.target.value,
+            document.getElementById("childrens").checked
+          )
         );
       });
-}
+      document.getElementById("childrens").addEventListener("change", (e) => {
-
-function triggerUpdate() {
         renderTable(
           search(
             books,
             document.getElementById("search").value,
-      document.getElementById("childrens").checked
+            e.target.checked
           )
         );
+      });
+      renderTable(
+        search(books, "", document.getElementById("childrens").checked)
+      );
+    });
 }
 
 function renderTable(books, sortField) {