コード整理

components/ActionSheetComponents/EachTrainInfo.js

@@ -40,7 +40,6 @@ export const EachTrainInfo = (props) => {
   } = props.payload;
   const [trainData, setTrainData] = useState([]);
   const [currentPosition, setCurrentPosition] = useState([]);
-
   const [trainPositionSwitch, setTrainPositionSwitch] = useState("false");
 
   const { currentTrain } = useCurrentTrain();
@@ -81,22 +80,22 @@ export const EachTrainInfo = (props) => {
     const mainTrainStationPosition = trainData.findIndex(
       (d) => d.split(",")[0] == stationInfo
     );
-    const relationMain =
+
-      mainTrainStationPosition == 0
+    const relationMain = (() => {
-        ? "head"
+      if (mainTrainStationPosition == 0) return "head";
-        : mainTrainStationPosition == trainData.length - 1
+      if (mainTrainStationPosition == trainData.length - 1) return "tail";
-        ? "tail"
+      return "middle";
-        : "middle";
+    })();
 
     const subTrainStationPosition = showNearTrain.findIndex(
       (d) => d.split(",")[0] == stationInfo
     );
-    const relationSub =
+    const relationSub = (() => {
-      subTrainStationPosition == 0
+      if (subTrainStationPosition == 0) return "head";
-        ? "head"
+      if (subTrainStationPosition == showNearTrain.length - 1) return "tail";
-        : subTrainStationPosition == showNearTrain.length - 1
+      return "middle";
-        ? "tail"
+    })();
-        : "middle";
+
     switch (relationMain) {
       case "head":
         if (relationSub == "head") {