[feat] localstorge 관련 유틸 작성

Author: lallaheeee

src/utils/getLocalStorage.ts

@@ -0,0 +1,5 @@
+export default (key: string) => {
+    const value = localStorage.getItem(key);
+
+    return value ? JSON.parse(value) : null;
+};

src/utils/index.ts

@@ -1 +1,3 @@
 export { default as displayDate } from "./display-date";
+export { default as getLocalStorage } from "./getLocalStorage";
+export { default as setLocalStorage } from "./setLocalStorage";

src/utils/setLocalStorage.ts

@@ -0,0 +1,2 @@
+export default (key: string, value: string) =>
+    localStorage.setItem(key, JSON.stringify(value));