wa-sqlite OPFS

The proposed Origin Private File System and (synchronous) AccessHandle may provide an alternative to IndexedDB for persistent application storage. These experimental APIs (and ES6 module worker) are not supported on all browsers and platforms.
TestOPFS
Test 1: 1000 INSERTs (very slow)
Test 2: 25000 INSERTs in a transaction
Test 3: 25000 INSERTs into an indexed table
Test 4: 100 SELECTs without an index
Test 5: 100 SELECTs on a string comparison
Test 6: Creating an index
Test 7: 5000 SELECTs with an index
Test 8: 1000 UPDATEs without an index
Test 9: 25000 UPDATEs with an index
Test 10: 25000 text UPDATEs with an index
Test 11: INSERTs from a SELECT
Test 12: DELETE without an index
Test 13: DELETE with an index
Test 14: A big INSERT after a big DELETE
Test 15: A big DELETE followed by many small INSERTs
Test 16: DROP TABLE