Signal api

[jvanbruegge]

I have currently a console.log in the map function that gets called if project is run. And as expected, it only prints if the window height changes or I click on the button.

[Widdershin]

Exciting!

Cool to see this has the suggested counter optimizations.

Also I like the choice of using functional transformers internally but exposing a chainable interface.

I like the properties of the transformer approach sometimes but I don't want to be forced to use them, so this is an ideal compromise for me.