JS & The Browser
Browser Persistence


Persistence is as you'd expect -- just provide a file name when opening the database. If you don't want to persist your database, provide ":memory:" for the filename or omit the filename. A persistent database can include have non-persisted tables via the CREATE TEMPORARY TABLE statement (opens in a new tab).

A runnable persistence example using the wasm build is below.

Import the required packages and init the wasm:

Now create a database. To make it persisted all you need to do is pass in a filename. Omitting the filename runs the database in memory.

And finally, write then read some data to check it out:

To check that it did indeed persist, refresh this page a few times and see the number of todos grow!

You can also see a more detailed setup guide on ObservableHQ: (opens in a new tab)