The Nineteenth Byte

I have like 10 functions that take a function as input and return a function

it's almost like I made ~~tacit~~ Python \o/ [I don't understand what tacit means]

Anonymous

@HyperNeutrino I don't think you understand what tacit means

@HyperNeutrino lambda stack, *arguments:. It's called in more than one place.

probably not

Anonymous

Tacit aka pointfree means code that doesn't refer to its arguments/parameters explicitly

3:01 PM

Oh okay

@totallyhuman Are you saying that HyperNeutrino has self-issues? :-O

The way I have it, you can keep calling functions on the functions but at the very end of the chain it explicitly calls the function with the arguments because it can't do it any other way xD

totallyhuman

><

@wizzwizz4 I won't deny it :D

A: Sandbox for Proposed Challenges

0

code-golf cops-and-robbers decision-problem Just Hangin' Find the input that hangs the program Cops: Your challenge is to make a program that terminates on all inputs except one (or more)1. Please, don't "implement RSA" or anything mean to the robbers. Use obscure languages and features, no...

3:02 PM

@programmer5000 Is this just the inverse of your last CnR?

Anonymous

Example: f n = n `rem` 2 == 0 is a pointful function in Haskell for testing parity. f = (0 ==) . (rem 2) is the equivalent pointfree definition.

Anonymous

@HyperNeutrino That's called a fluent interface

Somewhat, but with big changes to fix the issues

Learn How To Be Transparent

Oh okay. That makes a bit more sense, thanks.

Hey, I am stuck at this JavaScript challenge:

Write a function called 'sum' that should be usable as follows:

sum(1, 2, 3) // should return 6
sum(1)(2)(3) // should return 6
sum(1, 2)(3) // should 6

Note, the function can have any number of arguments, not just 3.

Anonymous

3:03 PM

@LearnHowToBeTransparent Look up currying

@LearnHowToBeTransparent check if each arg is a function, if it is call it

@LearnHowToBeTransparent That's terrible.

What if you want sum(1, 2, 3)(4)?

Nathan Merrill

@StepHen none of the arguments are functions

Learn How To Be Transparent

How can sum(1,2,3) be not a function but sum(1) is a function?

Well, here is my attempt: https://repl.it/JsLN
But I have to call the function like so:
sum(3,4,5)()
sum(3,4)(5)()
sum(3)(4)(5)()

3:05 PM

@LeakyNun It's a flawed problem.

@LearnHowToBeTransparent is it guaranteed to have only 3 inputs?

Learn How To Be Transparent

@LearnHowToBeTransparent That's fine. It's not possible otherwise.

the problem is, no

Unless you're converting to int.

> Note, the function can have any number of arguments, not just 3.

3:05 PM

@LearnHowToBeTransparent you can't do it.

Nathan Merrill

can you make a custom number type?

Yeah, as written it's not possible. Because a(1, 2) should give 3, but a(1, 2)(3) should give 6, which means 3(3) = 6 which doesn't make sense

Nathan Merrill

aka, it acts like an integer, but is callable?

A: Sandbox for Proposed Challenges

@LearnHowToBeTransparent gimme a sec I think you can do it

New Sandboxed Posts

2

code-golf cops-and-robbers decision-problem Just Hangin' Find the input that hangs the program Cops: Your challenge is to make a program that terminates on all inputs except one (or more)1. Please, don't "implement RSA" or anything mean to the robbers. Use obscure languages and features, no...

3:07 PM

@HyperNeutrino in the old CnR, the challenge was basically: "Override language values to make a cop crash"

oh okay

Q: Pi Hunting - find an index of Pi whose value matches its index

The new rules ensure that the only valid inputs are constant values, not code

New Main Posts

0

Given π to 200 Million places (to make it less painful), your challenge is to locate indices of π where the index and the value at that index are the same. For example if the number was: 0.1 2038472810081466211731 the 0th index is 0 the 1st index is 1 and the second index is 2 and the tenth i...

@NewSandboxedPosts That was fast

why does 05ab1e hate me

3:19 PM

05a1be hates everyone

I'm not used to it over Jelly xD

Patrick Roberts

@programmer5000 awesome!

all the filter-out function seems to be able to do is blow up the stack

Oh I see. It's not programmed properly

2

> A104429 Number of ways to split 1, 2, 3, ..., 3n into n arithmetic progressions each with 3 terms.

hmm...

@Adnan м doesn't seem to work in 05AB1E

3:21 PM

@PatrickRoberts Thanks!

Have any votes / feedback?

Patrick Roberts

I upvoted the proposal, but the challenge seems basically what I was expecting it to be

@HyperNeutrino Try K as an alternative

@Okx Oh thanks

I'm just about ready to give up on 05AB1E

What's with everything turning into strings for no good reason? If I wanted strings I'd use strings

5

I typically prefer my numbers to be numbers not sure if it's just me...

does it affect any behaviour?

It makes sorting not work I think

For the 2048 challenge that came out last night, this should work

3:30 PM

well i mean you can use one of the bytes to cast to integer if it doesn't work

Well actually that takes 3 extra bytes

Like I got it to work: ε0K}Dε€ï{}síε€ï}Q

But does it really need to be that clunky?

I mean if my numbers didn't have identity crises it would work better

@HyperNeutrino so what's wrong with that?

Well, strings aren't sorted correctly; the sorted list should be [2, 4, 8, 16] but it's ["16", "2", "4", "8"]

@HyperNeutrino Use cQuents, it doesn't have strings

@StepHen lol

3:34 PM

@HyperNeutrino I see no strings

My language technically can have strings because I added a 2-byte thing that makes strings from codepoints but you can only add them in at the end

and the "strings" it has I'm contemplating removing

@Okx Well yes that works but not really because if there are 0 cells it doesn't work

although I eventually want to be able to do string sequences too, but that's for later

@HyperNeutrino wdym

3:36 PM

[16, 8, 0, 4] is truthy but it sorts to [0, 4, 8, 16] for which I need to ignore the 0s

ah

0δKD€{íQ seems to work

@Okx oh hm. nice. can I steal that as a golf? :)

okay but give me credit :P

ik :P yay thanks :D

np

3:40 PM

Hey guys! Anybody else that always gets "Server's response could not be decoded" on TIO?

wait why do you refer to me as 'they' i am a single person

@BruceForte can you link to a run when you got it?

I do not know your gender :P

@Okx I personally hate singular they but w/e

male

AdmBorkBork

3:40 PM

Best. Question. Tag. Ever.

@StepHen Sure: Try it online!

ok. thanks

lmao

xD

@BruceForte I get Could not infer valid type for program in the output field, and a runtime of ~53 seconds

no server decoding messages

3:43 PM

Oh, wow didn't expect that. I've experienced this before when it takes long that I get that message

I'm encountering slight issues with my language. Namely, I don't understand my fluent interface anymore ._.

Guess I need to compile the interpreter and work offline

@BruceForte do you not get the same thing I do?

@StepHen Thanks a lot for looking into it

np

3:44 PM

No, I get "Server's response could not be decoded"

@BruceForte That's weird - you might hop on over to the TIO chat room and ask around

Oh, now when I click the link I provided I get that same response and only when I click run I get that message :S

@BruceForte yeah the output was preloaded for me

Ah, makes sense

Yeah, I'll ask over there. Thanks!

Anonymous

@LearnHowToBeTransparent repl.it/JsLN/25

Anonymous

3:48 PM

Totally cheating, but it gets the job done

@Mego is it extensible?

Anonymous

@StepHen Yep, it works with any number of arguments

Anonymous

The hack is that the sum isn't computed until toString is called on the result object

Anonymous

And console.log is hacked to have a first argument of "%s", which causes toString to be called on the second argument

A: Hello, World! with semi-common characters

Who said Perl isn't a esolang?

3

Perl 5, 92 bytes 91 bytes code + 1 for -p. I'm not 100% sure if this is considered valid, since it necessitates the -p flag, will probably only work on *nix machines and also relies on the details in this meta post for empty input (which TIO doesn't support, so a newline is provided - and never...

3:52 PM

OK Perl is an esolang confirmed

5

feersum

General-purpose programming language is just a special case of esolang.

5

Apparently base converting back and forth changes the values >.<

I'm trying to use base conversion for compression but it isn't working

@Mego Just make sure you don't ask me. My handwriting is absolutely terrible.

@HyperNeutrino you're obviously doing something wrong

@StepHen Well duh xD

I think it's maybe integer overflow?

4:00 PM

@HyperNeutrino my base conversion in Explode works, you want to look at that code?

@StepHen Sure, thanks.

Anonymous

@DJMcMayhem Terrible handwriting is kinda the point. More diverse handwriting samples = better challenge

@HyperNeutrino Probably not optimal, but github.com/stestoltz/Explode/blob/master/explode.py#L343

Oh lol that's the code I'm using

I think it's probably integer overflow

@HyperNeutrino do you have the -1? That threw me off (unless you're doing it slightly differently)

4:02 PM

@Mego What if it's embarrassingly bad? :P

Verging on illegible

No, I am using base-115 to convert the digits [1,1,1,1,...,1] with about 20 1s though

actually I think the -1 is because I'm doing it weird

@HyperNeutrino want to TIO what you're doing?

@DJMcMayhem Here is the last test case: DJ's handwriting. Anyone whose code works for all previous test cases and this one automatically wins on the spot.

@StepHen tio.run/…

Anonymous

@DJMcMayhem No judgment here

@StepHen Hehe

This guy gets it

4:05 PM

@HyperNeutrino oh you call other stuff too :/ I'll look at it later when I have more time if you still haven't fixed it

@StepHen tio.run/…

(Removing Ceres dependencies like _i and veclist)

so wait what's wrong with it

I'm trying to get it to break...

well now it won't break lol

so your Ceres dependencies broke it :P

That's really odd

It's working on my computer now too

4:07 PM

@HyperNeutrino add your dependencies back, manually (no undo) and if it's broken again you know the problem

@StepHen No I didn't even remove the dependencies

@HyperNeutrino oh lol

Besides, the dependencies don't really do anything it's just for the fluent interface

> fluent interface

what's that?

Essentially I call functions on functions and keep chaining them on each other and then at the very end call the whole thing with the arguments

so like vectorize(listify(intify(function)))(arguments)

4:09 PM

I like ASTs better, seems like they are simpler and easier to debug

ಠ_ಠ

So it still sometimes breaks on my computer but the case that breaks it doesn't break on TIO

Maybe it is the dependencies?

@HyperNeutrino just maybe

heh it's floating-point inaccuracies

@HyperNeutrino oh lol

why do you have floats involved?

Doing list(map(float, [...])) breaks it

@StepHen everything is a float

or a complex number

4:10 PM

oh right and you are doing **

yes

@HyperNeutrino if you want to mess around with Explode it's on TIO - I need to add a flag for tape output each tick though, for it to make any sense

oh okay

thanks

it also can't carry stuff over so it can't do real addition yet

I should probably use ints; it wouldn't break any operations

yay I got it to work

Anonymous

4:15 PM

@HyperNeutrino Oh, that's a bit different from a fluent interface. That's function composition.

Oh okay. So what's a fluent interface then? :P

Anonymous

It's a similar concept, but applied differently

Anonymous

A fluent interface is like LINQ in C#

4 or less stars on each message in the starboard... people can't decide what to star

lol

4:16 PM

@HyperNeutrino List.Select(x=>x.age > 10).First()

code-golf string ascii-art

Oh thanks. Okay

New Main Posts

4

Q: Zippered Paragraph

(Inspired by this challenge) Given two input strings, one of which is exactly one character longer than the other, arrange the strings into ASCII art as if they are two halves of a zipper that is only halfway zippered. The longer word forms the bottom of the zipper, and is the first and last cha...

@Mayube so, jQuery?

$("div").addClass("test").show();

Anonymous

@StepHen A lot of jQuery uses a fluent interface

Anonymous

@Mayube That would be list.All(x => x.age > 10).First()

Anonymous

4:19 PM

All is like WHERE in SQL, and Select is like SELECT in SQL

I've decided that I need to switch to sympy and drop the complex numbers :P

Complex numbers are not often relevant

@HyperNeutrino cQuents doesn't use any libraries, what could go wrong with that? :P

@StepHen Probably because you're not trying to encode Hello World's codepoints in base 115 :P

@Mego I always use select, what's the functional difference?

Anonymous

4:21 PM

@Mayube Select takes a property from each object in the enumerable

@HyperNeutrino no, why would I do that

@StepHen cuz why not

Anonymous

So list.Select(x => x.age) would return an enumerable of ages

hey it works now \o/ fastest switch to sympy ever

@HyperNeutrino I'm a sequence language not a golfing language :P

4:21 PM

uhm

Hello World in my Ceres: 389960998265612367812323333 115dÆP :P

I'm fairly certain you're wrong Mego

Simply Beautiful Art

Hello random pepes. If anyone wants to try and make a really large number/function, please support my proposal:
https://codegolf.meta.stackexchange.com/a/13524/58880

Anonymous

All takes a predicate (function taking one object and returning a boolean) and filters the enumerable based on that predicate

List.Select(x => x.age > 10) works fine for me

4:22 PM

@HyperNeutrino Hello World in cQuents: Hello, World!?0

lol

wait so you do have strings?

@HyperNeutrino everything before the mode is read as a literal and printed before the sequence

oh ok

wait so you have different modes that are run based on what the input is?

@HyperNeutrino the mode is ?

but yes more or less

(ノ°Д°）ノ︵ ┻━┻ and I thought my idea was original for once!

4:24 PM

@HyperNeutrino ? is truthy/falsey for input in the sequence

Simply Beautiful Art

@HyperNeutrino xD

: prints the sequence if given no input, and returns the nth term if given input

:: prints the sequence up to the input

; sums to sequence up to the input (aka series)

Oh okay so slightly different

those are like quicks in Jelly and adverbs in Ceres kinda

so my idea maybe isn't too unoriginal for once ┬─┬ ノ( ゜-゜ノ)

I want to add !? for opposite outputs for ?

and something for closest

@Mego oh wait you're right, i was thinking of Where()

so what's the functional difference between Where() and All()

4:27 PM

:D Somebody just forked my dotfiles to their own repo. That makes me super happy :D

anyway gtg for a bit. o/

totallyhuman

bye

Aaah @Mego Where is the equivalent of SQL's where, All returns a boolean, true if the predicate matches all items, false otherwise

Anonymous

@Mayube Oh whoops, got the names wrong

Guess we were both wrong :P

4:30 PM

"what's wrong with just using SQL"

Anonymous

I knew for certain Select didn't do that :P

@StepHen Some people don't like to shout all their commands

Anonymous

@BusinessCat SQL doesn't have to be all uppercase - that's a relic of an older age

Yeah

AdmBorkBork

@DJMcMayhem Grats. That's kinda nifty.

4:31 PM

@DJMcMayhem Don't have have hotdog vim or something stupid like that turned on though? :P

@StepHen I have it included but not enabled

What do you think of my commit message and comments?

5

@DJMcMayhem Something something my eyes are bleeding crimson

> coloscheme.

> coloscheme

Hahaha

4:36 PM

Damn ninjas

Ninja'd

ASCII-only

If I wasn't on mobile I wouldn't have been ninja'd

This is a script for getting all sandboxed posts that should be deleted

Anonymous

@DJMcMayhem Honestly the tags on that repo are the best

@BusinessCat @ASCII-only Is that better?

@Mego :D I'm glad someone notices/appreciates those

chat.stackexchange.com/search?q=scary+pencils&room=240

Anonymous

4:40 PM

I don't understand why you tagged it scary-pencils but it seems appropriate

@Mego It's kind of an inside joke with my girlfriend. In Dr Langeskov, at one point Justin Roiland starts ranting about running to the hills to get away from the scary pencils and we quote that game incessantly.

And it doesn't make any sense on a github repo, so I like having it there.

Anonymous

@DJMcMayhem I might have to try that game