How can one determine whether using a particular extension in Haskell is a good idea?
I’m continuously asking myself whether there is a way to implement this or that thing in Haskell. Sometimes, I succeed in figuring out a solution, and it’s not rare for such a solution to require a language extension. Should I opt for it without a second thought, given it provides a necessary feature, or may using a particular language extension be undesirable? Is there a conventional way to determine this for an extension of interest?
How can one determine whether using a particular extension in Haskell is a good idea?
I’m continuously asking myself whether there is a way to implement this or that thing in Haskell. Sometimes, I succeed in figuring out a solution, and it’s not rare for such a solution to require a language extension. Should I opt for it without a second thought, given it provides a necessary feature, or may using a particular language extension be undesirable? Is there a conventional way to determine this for an extension of interest?
How can one determine whether using a particular extension in Haskell is a good idea?
I’m continuously asking myself whether there is a way to implement this or that thing in Haskell. Sometimes, I succeed in figuring out a solution, and it’s not rare for such a solution to require a language extension. Should I opt for it without a second thought, given it provides a necessary feature, or may using a particular language extension be undesirable? Is there a conventional way to determine this for an extension of interest?
How can one determine whether using a particular extension in Haskell is a good idea?
I’m continuously asking myself whether there is a way to implement this or that thing in Haskell. Sometimes, I succeed in figuring out a solution, and it’s not rare for such a solution to require a language extension. Should I opt for it without a second thought, given it provides a necessary feature, or may using a particular language extension be undesirable? Is there a conventional way to determine this for an extension of interest?
How to access an external package in a file [duplicate]
This question already has answers here: VS Code “Could not find module” in standalone Haskell file (2 answers) Closed 2 days ago. I came across the youtube video for accessing external package by specifying in .cabal in a project. But how to access the package in a single file. Suppose I want to write a […]
How do you encode Algebraic Data Types in a C#- or Java-like language?
There are some problems which are easily solved by Algebraic Data Types, for example a List type can be very succinctly expressed as:
Different ways to see a monad
While learning Haskell I have faced a lot of tutorials trying to explain what are monads and why monads are important in Haskell. Each of them used analogies so it would be easier to catch the meaning.
At the end of the day, I have end up with 3 differents view of what a monad is:
Critique of the IO monad being viewed as a state monad operating on the world
The IO monad in Haskell is often explained as a state monad where the state is the world. So a value of type IO a monad is viewed as something like worldState -> (a, worldState).
Why is the concept of lazy evaluation useful?
It seems lazy evaluation of expressions can cause a programmer to lose control over the order in which their code is executed. I am having trouble understanding why this would be acceptable or desired by a programmer.
What’s the progress on Haskell records?
Recently I stumbled once again on the issues of Haskell’s records, in particular the uniqueness of field names. (It’s a pain…)