clearIndexedDBStore

1/**
2 * Clears all records from a specified object store in IndexedDB.
3 *
4 * @param db - The open IDBDatabase instance.
5 * @param storeName - The name of the object store to clear.
6 * @returns A Promise that resolves when the store is cleared.
7 */
8export function clearIndexedDBStore(
9  db: IDBDatabase,
10  storeName: string
11): Promise<void> {
12  return new Promise((resolve, reject) => {
13    const transaction = db.transaction([storeName], 'readwrite');
14    const store = transaction.objectStore(storeName);
15    const request = store.clear();
16
17    request.onsuccess = () => resolve();
18    request.onerror = () => reject(request.error);
19  });
20}

1import { openIndexedDB } from './openIndexedDB';
2import { addToIndexedDB } from './addToIndexedDB';
3import { getAllFromIndexedDB } from './getAllFromIndexedDB';
4
5test('clearIndexedDBStore - removes all items from the store', async () => {
6  const db = await openIndexedDB('TestDB_Clear', 1, {
7    upgrade(db) {
8      db.createObjectStore('entries', { keyPath: 'id' });
9    }
10  });
11
12  await addToIndexedDB(db, 'entries', { id: 1, name: 'One' });
13  await addToIndexedDB(db, 'entries', { id: 2, name: 'Two' });
14
15  await clearIndexedDBStore(db, 'entries');
16
17  const all = await getAllFromIndexedDB(db, 'entries');
18  expect(all).toEqual([]);
19
20  db.close();
21});