async function dropTable(dbName, version, tableID) 
{
	return new Promise((resolve, reject) => 
	{
		const request = indexedDB.open(dbName, version);
	
		request.onupgradeneeded = (event) => 
		{
			const db = event.target.result;
			db.deleteObjectStore(tableID);
			resolve(1);
		};
		request.onsuccess = (event) => 
		{
			const db = event.target.result;
			db.close();
			resolve(0);
		};
	
		request.onerror = (event) => 
		{
			reject(event.target.error);
		};
	});
}
dropTable("sampleDB", 2, "testTable")
	.then((result) => 
	{
		console.log(result);
	})
	.catch((error) => 
	{
		console.error("error:", error);
	});