tsxのFC宣言をProviderに追加

stateBox/useTrainDelayData.tsx

@@ -1,11 +1,11 @@
-import React, { createContext, useContext, useEffect, useState } from "react";
+import React, { createContext, FC, useContext, useEffect, useState } from "react";
 const initialState = {
   getTime: new Date(),
-  setGetTime: () => {},
+  setGetTime: (e) => {},
   loadingDelayData: true,
   setLoadingDelayData: (loading) => {},
   delayData: undefined,
-  setDelayData: () => {},
+  setDelayData: (e) => {},
 };
 
 const TrainDelayDataContext = createContext(initialState);
@@ -13,8 +13,10 @@ const TrainDelayDataContext = createContext(initialState);
 export const useTrainDelayData = () => {
   return useContext(TrainDelayDataContext);
 };
-
-export const TrainDelayDataProvider = ({ children }) => {
+type props = {
+  children: React.ReactNode;
+};
+export const TrainDelayDataProvider:FC<props> = ({ children }) => {
   const [delayData, setDelayData] = useState(undefined);
   const [getTime, setGetTime] = useState(new Date());
   const [loadingDelayData, setLoadingDelayData] = useState(true);