mysql param types, async search, bugfix

react/shared/hooks/async-search.js

@@ -0,0 +1,21 @@
+import {useEffect, useState} from "react";
+
+
+export default function useAsyncSearch(callback, minLength = 1) {
+
+    const [searchString, setSearchString] = useState("");
+    const [results, setResults] = useState(null);
+
+    useEffect(() => {
+        if (!searchString || searchString.length < minLength) {
+            setResults([]);
+            return;
+        }
+
+        callback(searchString).then(results => {
+            setResults(results || null);
+        });
+    }, [searchString]);
+
+    return [searchString, setSearchString, results];
+}