Lenses, Folds, and Traversals

Why HN readers recommended it

HN calls it dense but mind-blowing, the go-to way to understand lenses through algebraic derivation.

This is a summary from the source dataset, not an endorsement by Hacker News or the video creator.

Video & recommendation details

Creator / channel

Edward Kmett

Topic

haskell lenses

Format

talk

Level

advanced

HN recommenders in dataset

3

HN mentions in dataset

3

Recommendation years in dataset

2013–2014

These counts and years describe the included Hacker News records; they are not YouTube views or the video’s publication date.

From the original HN conversations

Excerpts from the recorded comments. Follow each source for the full comment and surrounding discussion.

• I found this talk by edward kmett incredibly helpful[0]. I kept rewatching parts of it bit by bit until I managed to absorb it all (there is a lot of information for a beginner) but I found it hugely helpful and mind-blowingly powerful. [0] [VIDEO]

• If you want to work in an environment where a lot of people are thinking like this routinely, instead of a few lone voices in a vast sea of otherwise uninterested people, the Haskell community is doing a lot of work in this area, and …

• "The best forms of language advocacy probably involve showing the great things you've done with a language and forgetting about comparisons to the competition." Great things the parent has done with the language: [VIDEO]