![Bravo! :bravo:](./images/smilies/bravo.gif)
I get error: f := () => u := 1 (due to assignment), I can do u++ and (u := 1) though.
I make unspecfic title if others have general comments or questions, we do not need many threads.
Although I like the name. fat arrow, I'd prefer something easier to type, eg f := () :: expr, fat colon?
![Laughing :lol:](./images/smilies/icon_lol.gif)
I do not know how you type => on english keyboard, but on mine, I do shift+0 for =, then shift + < for >.
Cheers.