How to write custom SQLite functions in Javascript inside a Webkit browser?

Posted by Jay Godse on Stack Overflow See other posts from Stack Overflow or by Jay Godse
Published on 2010-05-17T06:41:40Z Indexed on 2010/05/18 9:30 UTC
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JavaScript

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sqlite

I have just learned how to use the SQLite database for local storage in a Webkit web browser (e.g. Google Chrome or Apple Safari) using the Javascript API. For example the "Sticky Notes" application.

However, I know that SQLite has a function called sqlite_create_function() that lets you add custom functions to your instance of SQLite on the fly which can then be used inside SQL queries. This function is described at sqlite.org.

I also know that you can call an equivalent of this API in Ruby as described here.

QUESTION: Can anybody show me how to do this in Javascript - i.e. write a custom function in Javascript that can be bound into the SQLite database at run time to be called by the SQLite engine, and all inside a Webkit browser?

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