feat: local storage helper

electron/renderer/lib/local-storage.ts

@@ -0,0 +1,32 @@
+export const hasLocalStorage = (): boolean => {
+ return typeof localStorage !== 'undefined';
+};
+
+export const LocalStorage = {
+ /**
+ * Gets a JSON value from local storage for the given key.
+ * If either local storage isn't defined or key not found then
+ * returns undefined.
+ */
+ get: <T>(key: string): T | undefined => {
+ if (!hasLocalStorage()) {
+ return;
+ }
+ const value = localStorage.getItem(key);
+ if (value) {
+ return JSON.parse(value);
+ }
+ return;
+ },
+ /**
+ * Sets a JSON value in local storage for the given key.
+ * The value should be JSON serializable.
+ * For example, not a `Map` or `Set` because those become `{}`.
+ */
+ set: <T>(key: string, value: T): void => {
+ if (!hasLocalStorage()) {
+ return;
+ }
+ localStorage.setItem(key, JSON.stringify(value));
+ },
+};