WIP

src/useLatest.ts

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+/*
+Copyright 2023 New Vector Ltd
+
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { useRef } from "react"
+
+/**
+ * Returns a ref that always holds the latest value passed to this hook.
+ */
+export const useLatest = <T,>(t: T): { current: T } => {
+  const latest = useRef(t)
+  latest.current = t
+  return latest
+}