Great topic, interesting ideas/solutions, and plus points for cats and Hitler (but why no Kitlers?)
Interesting talk! I do still think that for each Haskell example doing some math or whatnot, an equivalent in something like Python alongside would help people see *what* the Haskell would do, even though I understood your fear that people would then think that that was *how* Haskell was doing it.
Best thing about the talk was getting to know Haskell syntax.
Entertaining talk. Delivered with great sense of humour. Made sure the audience was aware of a problem (the way developers work with objects is not without risks) and then presented a solution (immutable objects). Skipped the type of details that tend to slow down a talk too much. Slides were good, the display screen at the venue was pretty terrible.
Great idea to do live code examples. A brave but wise decision to skip the monads. Please pay a bit more attention to the syntax. It's not that hard but it tends to confuse people.
Really wouldn't have guessed it was your first talk.
Enjoyed the talk and think it is great how you fitted this in a lightning talking.
4 thumbs because you forgot some slides ;)
I did not know Mr. Hitler had such intimate knowledge of object invariants. This being Jeroen's first talk did not show, it all came very naturally. The typical getter-setter scenario was properly shamed and replaced by behaviour reflective of the domain. I think the part about immutability gave a lot of people food for thought and something to discuss afterwards.
Great little introduction into Haskell. The story may have been hard to follow for those with no knowledge at all of Haskell. It would have been good to properly address the syntax: what makes up the "argument list", what are type variables, how are variables applied to functions etc. The interaction with the audience, however, made up for all this.
Awesome introduction into Haskell. Interaction with the audience was great, sometimes even hilarious. A nice introduction into Functional Programming and Haskell.