Re^2: Augmenting and reducing data structures

For some reason this comment reminded me of zippers in functional languages. I've forgotten the minimal amount I knew of them but it vaguely tickled some recollection.

The cake is a lie.
The cake is a lie.
The cake is a lie.

Comment on Re^2: Augmenting and reducing data structures

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Re^3: Augmenting and reducing data structures by bliako (Abbot) on Apr 27, 2021 at 07:59 UTC
Fletch, it took me reading several sources on zippers to think that I got an idea of what they are (this seemed OK btw: https://scienceblogs.com/goodmath/2010/01/13/zippers-making-functional-upda)! Thanks for mentioning them. Caveat: but I had a hard time navigating out of the usual comp-science hot-air atmosphere. bw, bliako	[reply]
Re^4: Augmenting and reducing data structures by Fletch (Bishop) on Apr 27, 2021 at 12:50 UTC
Lenses and zippers and monads are some of those really neat concepts when you're looking at Haskell or ML, but then you're like "This is cool, but I just need to do X with my tree." and then you're right back to XKCD 224 . . . The cake is a lie. The cake is a lie. The cake is a lie.	[reply]