feat: Initial commit

1 files changed, 26 insertions, 0 deletions

diff --git a/code/app/src/utilities/storage-helpers.ts b/code/app/src/utilities/storage-helpers.ts
new file mode 100644
index 0000000..cce655c
--- /dev/null
+++ b/code/app/src/utilities/storage-helpers.ts
@@ -0,0 +1,26 @@
+import { browser } from "$app/environment";
+import { is_empty_object } from "./validators";
+
+export type StorageType = "local" | "session";
+export const browserStorage = {
+    remove_with_regex(type: StorageType, regex: RegExp): void {
+        if (!browser) return;
+        const storage = (type === "local" ? window.localStorage : window.sessionStorage);
+        let n = storage.length;
+        while (n--) {
+            const key = storage.key(n);
+            if (key && regex.test(key)) {
+                storage.removeItem(key);
+            }
+        }
+    },
+    set_stringified(type: StorageType, key: string, value: object): void {
+        if (!browser) return;
+        if (is_empty_object(value)) return;
+        (type === "local" ? window.localStorage : window.sessionStorage).setItem(key, JSON.stringify(value));
+    },
+    get_stringified<T>(type: StorageType, key: string): T | any {
+        if (!browser) return;
+        return JSON.parse((type === "local" ? window.localStorage : window.sessionStorage).getItem(key) ?? "{}");
+    }
+}
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