[winduptoy]

Hey, author here.

A lot of things are performed on the server, and then the server responds with a "flash" which is basically a little bar that says "Data saved." or "There was an error: ...".

There are a few places where I used a simple 5-liner to validate a field or something.

Unfortunately there was one place where I needed some heavier JS (for which I used Mithril.js), but it was absolutely required for when you're editing an invoice. You wouldn't want to edit line items and wait for a server response every time you make one change, so I simply determined that this was an area where I had no choice. Mithril simply modifies the DOM inside the <form> element, and then saving is a plain old POST request when you submit the form after you've made all of your changes.

The unfortunate reality is that I couldn't completely free myself from JavaScript, but got a lot closer.