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FUNCTION-PROGRAMMING QUESTIONS

Why should I learn Lisp?
Why should I learn Lisp?
To fix this issue One of the main uses for Lisp is in Artificial Intelligence. A friend of mine at college took a graduate AI course and for his main project he wrote a "Lights Out" solver in Lisp. Multiple versions of his program utilized slightly d
TAG : function-programming
Date : January 22 2021, 04:47 PM , By : Robert M
Check if all elements in list have a :ok element
Check if all elements in list have a :ok element
I think the issue was by ths following , Instead of iterating through the list to convert to a list of atoms, you can just use Enum.all?/2 immediately.
TAG : function-programming
Date : January 03 2021, 08:18 AM , By : Mikael
What is the relationship between Gallina and OCaml?
What is the relationship between Gallina and OCaml?
I wish this helpful for you That's a bit of a loaded question.Gallina could exist independently from OCaml, though, being a lambda calculus, it shares some construct and semantics with it, and, having been developed in the OCaml world, it also shares
TAG : function-programming
Date : January 02 2021, 06:48 AM , By : yossi
my program is giving me warning (Main module of program is empty: nothing will happen when it is run)
my program is giving me warning (Main module of program is empty: nothing will happen when it is run)
this one helps. Pretty much any program in any programming language needs an entry point. Here's the doc for main in F.Most bare F programs will start with a main function that looks something like this:
TAG : function-programming
Date : January 02 2021, 06:48 AM , By : meodudang
Im getting an error in the first member (2nd line of code)
Im getting an error in the first member (2nd line of code)
With these it helps As far as I can see, the only thing that is wrong with your code is the indentation - when you are adding members to a record, the member keyword should be aligned with the { of the record definition.You can define the type correc
TAG : function-programming
Date : January 02 2021, 06:48 AM , By : Carter
How to convert a string into an array of integers, containing the ascii values of their corresponding characters?
How to convert a string into an array of integers, containing the ascii values of their corresponding characters?
wish of those help I'm trying to convert a string into an list in f, for my encryption algorithm. How would i solve this problem?
TAG : function-programming
Date : January 02 2021, 06:48 AM , By : Fahad
F# binding or composing together parsers acting on separate source streams
F# binding or composing together parsers acting on separate source streams
should help you out Your last sentence contains a clue to a good functional way to do this: "... looking at it, it is basically what bind does, just with an extra change (the different source)"Let's turn your 4-level pyramid of doom into a nice-looki
TAG : function-programming
Date : December 23 2020, 02:01 PM , By : Daljit Dhadwal
Ramda 'when' not producing expected result
Ramda 'when' not producing expected result
Does that help If you need to map an array of empty strings to an empty array, the only thing you need to do is to make sure that it is indeed only made of empty strings. (The "transformation" is rather easy: just return an empty array.)all(isEmpty)
TAG : function-programming
Date : December 23 2020, 04:01 AM , By : jehammon
Why Erlang functions are not memoized by default?
Why Erlang functions are not memoized by default?
around this issue One of the properties of functional languages is that functions do not have side effects, thus the same input should always yield the same output. It seems that those languages could easily and heavily benefit from memoization. , Th
TAG : function-programming
Date : November 28 2020, 08:01 AM , By : noboruwatanabe
How to test if two functions are the same?
How to test if two functions are the same?
To fix the issue you can do You can’t. Functions are treated as opaque values: they are only compared by identity, nothing more. This is by design.
TAG : function-programming
Date : November 27 2020, 09:01 AM , By : demize95
CPS merge sort causes a stack overflow
CPS merge sort causes a stack overflow
like below fixes the issue (@) of OCaml's standard library is not tail recursive. merge function in your code http://paste.ubuntu.com/13481004/ uses (@), and this is the cause of the stack overflow.list.mli says:
TAG : function-programming
Date : November 26 2020, 09:01 AM , By : cautionsign
Adapt `Callable` to `Supplier` in Java8
Adapt `Callable` to `Supplier` in Java8
wish helps you There is nothing wrong with classes providing static methods (or even a single static method). I’m not sure what you actually want to do, especially as the need for additional parameters is not clear but let’s suppose you are using it
TAG : function-programming
Date : November 24 2020, 01:01 AM , By : Amin Amini
How to refactor this pattern matched OCaml piece of code
How to refactor this pattern matched OCaml piece of code
I think the issue was by ths following , I'm learning OCaml from the MOOC offered by Université Paris Diderot. At the moment i have not encounter major struggle with functional thinking, but i do find this piece of code, a little bit ugly. How can i
TAG : function-programming
Date : November 14 2020, 11:01 PM , By : Jim Davis
How to build 2 lists using only 1 list in Scheme?
How to build 2 lists using only 1 list in Scheme?
I wish this helpful for you You don't mention which implementation you're using so I'll go with Racket which is what I am most familiar with.Some remarks:
TAG : function-programming
Date : November 10 2020, 09:01 AM , By : user133629
Build URL with conditional query parameters
Build URL with conditional query parameters
it fixes the issue Since the third parameter of Url.Builder.crossOrigin takes a list of QueryParameter values, you can build a list from 0 to memberCount using List.range:
TAG : function-programming
Date : November 07 2020, 04:01 AM , By : Janko
How to get try function to work?
How to get try function to work?
this will help I want my function (named try) to make sure that: , Not tested, but what you describe would be expressed as
TAG : function-programming
Date : November 01 2020, 01:05 PM , By : Jenuel
Racket - Picking a random element from a list
Racket - Picking a random element from a list
Does that help I'm not sure how to make this code work, its so late here that I think my brain has stopped functioning, anyone care to give me a hand? , This passes your tests:
TAG : function-programming
Date : October 31 2020, 05:43 PM , By : user186012
Racket - How to assign a length to a list
Racket - How to assign a length to a list
it fixes the issue The length of a list is the number of elements it contains. So you can't "assign a length to a list".However you can create a list with a certain number of elements, more conveniently. Assuming lang racket, you can use build-list.
TAG : function-programming
Date : October 31 2020, 05:43 PM , By : wpoch
SICP - Imperative versus Functional implementation of factorial
SICP - Imperative versus Functional implementation of factorial
help you fix your problem Your solution is splendidly mad, because it looks imperative, but it really isn't. (Some of what follows is Racket-specific, but not in any way that matters.)Starting with your implementation:
TAG : function-programming
Date : October 25 2020, 07:18 PM , By : Kbotei
Iterating over (x,y) positions of a grid using functional programming methods
Iterating over (x,y) positions of a grid using functional programming methods
wish helps you As @hellow pointed out in the comments, there's an iproduct macro in the itertools crate that does what I want. Using it, my code can be rewritten like this:
TAG : function-programming
Date : October 14 2020, 02:22 PM , By : MrSparky
What is mappedList and x from the list l?
What is mappedList and x from the list l?
hop of those help? The lambda expression (indicated by the fun keyword) defines the folder function, which has the type 'State -> 'T -> 'State where State is also sometimes referred to as the accumulator, abbreviated as acc. And 'T is the type of an
TAG : function-programming
Date : October 09 2020, 03:00 AM , By : uxn
Starting out with Fstar
Starting out with Fstar
Does that help You might find the following general resources helpful.https://softwarefoundations.cis.upenn.edu/
TAG : function-programming
Date : October 03 2020, 04:00 AM , By : Hibame
Update item in tree structure by reference and return updated tree structure
Update item in tree structure by reference and return updated tree structure
hop of those help? Here's an approach where we 1) locate the target object in your state tree, and then 2) transform the located object. Let's assume that your tree has some way to id the individual objects -
TAG : function-programming
Date : October 02 2020, 03:00 PM , By : static AG
Why flatmap is needed in state monads?
Why flatmap is needed in state monads?
like below fixes the issue The flatMap function is what gives rise to the extra power that you get from using a Monad as opposed to weaker (and hence more general) structures like Functor and Applicative. For State this function has type:
TAG : function-programming
Date : October 02 2020, 09:00 AM , By : Lex Viatkine
Always getting "RETURN-FROM: no block named NIL is currently visible"
Always getting "RETURN-FROM: no block named NIL is currently visible"
fixed the issue. Will look into that further Please indent your code in a Lisp way (this can be done automatically in many editors, like Emacs):
TAG : function-programming
Date : September 28 2020, 08:00 AM , By : eusden
Point-free programming puzzle
Point-free programming puzzle
will help you EditNote that some of the text here was based on another answer that used this version: innerJoin(useWith(equals, [prop('id'), identity])). That answer has been improved and no longer uses this technique. But these comments still make s
TAG : function-programming
Date : September 27 2020, 05:00 PM , By : THD
Racket: list-ref function
Racket: list-ref function
Hope that helps Here's one possible way. The trick is to pass as an accumulator a list with two values: the first one is a flag telling you if you've found the element, and the second one keeps track of the current index, that we increment with each
TAG : function-programming
Date : September 26 2020, 06:00 AM , By : Mikael
About equality in Agda
About equality in Agda
To fix this issue You have to call the trans function with explicit parameters (without the brackets) which leads to the following definition:
TAG : function-programming
Date : September 23 2020, 06:00 AM , By : Mariocki
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