Haskell Lens Tutorial by Exercises

This page summarizes the projects mentioned and recommended in the original post on news.ycombinator.com

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  • lens

    Lenses, Folds, and Traversals - Join us on web.libera.chat #haskell-lens (by ekmett)

    They are in fact well structured and not random at all. Take a look at this:

    https://github.com/ekmett/lens/wiki/Operators

  • InfluxDB

    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

    InfluxDB logo
  • monocle-ts

    Functional optics: a (partial) porting of Scala monocle

    For anyone - anyone who's faffed around with JavaScript's spread syntax when working with nested immutable data, anyway - struggling to understand the general concept or utility of lenses, I'd encourage looking into monocle-ts. The motivation [0] that kicks off the README instantly made me a believer, and TypeScript's idiosyncratic type system makes using the library remarkably natural; it fits right in without needing to deal with anything analogous to Template Haskell.

    [0] https://github.com/gcanti/monocle-ts#motivation

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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