containers VS Exercism - website

"Make invalid laziness unrepresentable" means you should use strict versions of container types instead of lazy ones. However, for better or for worse, sometimes the "strict version" of a data type is not actually a strict data type, it's just a strict API to the lazy type. Examples include Data.Map.Strict (not Data.Map or Data.Map.Lazy) or Data.HashMap.Strict (not Data.HashMap.Lazy) (sadly there is no Data.Sequence.Strict but perhaps there will be one day).

Indeed it's rather subtle. See https://github.com/haskell/containers/issues/752 for more discussion on the matter. Nonetheless, I believe it is "spine strict" in the sense that thunks for all values always exist, even if the spine that holds them can be rearranged due to laziness.

Note that the list index operator has O(n) complexity. Ideally you'd want to use something like Seq from the containers package

Edison and containers both have sequence types that support efficient, cons, snoc, viewL, viewR, append, map, and length.

containers

Calling linked lists Haskell's "primary data structure" seems off-base to me. Yes, there's String, yes, there's built-in syntax for List... but there's also everything in containers, and vector is pretty easy to use in practice, though it would probably be good for more learning material to mention it more prominently.

Haskell has much more sophisticated immutable data structures, you can find them in the "containers" package: https://hackage.haskell.org/package/containers

I asked this on the libraries mailing list but thought posting here would bring in potentially more responses. I made a recent change to the behaviour of lookup and find (see here for more details: https://github.com/haskell/containers/pull/800).

Rust has nothing on Haskell. containers, which might as well be considered part of the standard library, has been out for almost 14 years and is still 0.x

First to get a grasp of language use [Exercism(https://exercism.org/) anything similar. You can also practice leetcode questions in language of your choice. Leetcode may not help you with day to day stuff but it will force you out of your comfort zone and will make you think about what and how to write.

Here's a better way to learn at Javascript.info. Sprinkle in some online tutes such as Brad Traversy videos, build some mini-projects, and perhaps a coding challenge site such as edabit or exorcism.

All the exercises on https://exercism.org/ have been given a fresh coat of paint, removing their looped JSON test cases in favor of cases written fully in Raku.

https://exercism.org/ is my go-to spot when learning a new language to get lots of exercise. Just see how far you can progress.

Check out https://exercism.org/

Exercism

If you like to do exercises, I can recommend the website https://exercism.org It has al kinds of exercises and mentoring.

If you want improve your coding skills. Try https://exercism.org. They have tracks for all types of languages, including C.

exercism.org if you want to learn basics of some concepts or languages, I use it to learn other languages than the main one I work with. It's really nice IMO.