do we have to handle https://foo.github.io -> https://github.com/foo/foo.github.io?

yes

Dear SO: Not only do I truly not care whatsoever, there's nothing I'd less rather do than listen to something find out about it

can https be omitted

no

i am making it harder

I have a challenge

and I'm posting it here as a prelinimary

what domain of strings

for now, just printable ASCII

is it good, and moreover, is it possible

@pxeger I've never understood the rise of podcasts tbh

me neither

same

@pxeger Especially given that I can read the announcement post about it, that has likely been vetted multiple times by SE's PR department

@PyGamer0 Python snippet: `import math;print(math.sin(int(input)))

Rather than listen to someone try to explain it in a less refined way

@StackMeter Python 2, 63 bytes: Try it online!

so yes, it is doable

@pxeger may I ask, how would one reverse this

@StackMeter Python 2, 59 bytes: Try it online!

@pxeger Isn't that just base conversion?

@cairdcoinheringaahing it's bijective, though, because of the 1+ (decoding) and -1 (encoding)

@PyGamer0 Jelly, 6 bytes

i put in a good example use

@pxeger I put in -57 and it broke

Oh, is it supposed to accept negative integers?

yes

If it wasn't I would've said POSITIVE integers (emphasis mine)

@StackMeter or whole numbers

i think whole numbers = integers

@hyper-neutrino exactly

you could also use "natural numbers" - there is ambiguity as to whether that includes 0 or starts at 1 but if you wanted a bijection from N to set of strings i think allowing both makes sense because of indexing and such

anyway, it's trivial to make a bijection between N and Z anyway

@hyper-neutrino then do that

well there's probably a better way than just stealing pxeger's solution and adding an N<=>Z layer on top of it

@StackMeter Extended Dyalog APL, 5 bytes: ⌂adic Try it online!

doesn't work on negatives which is required by a clarfication :c

So we just need to map all ints to non-negative ints.

mhm

which is pretty easy, you can just double, abs val, and increment if negative (or if positive)

there's probably an even shorter way

Exactly.

@hyper-neutrino The Hilbert's Hotel bijection :P

er, decrement, i meant

otherwise 1 is not reached

{(2×|⍵)-⍵>0} ? probably suboptimal

CMC: silliest N <=> Z bijection

"Generate the sequence 0,1,2,3,-1,-2,-3,4,5,6,-4,.... Get the index of the value in that sequence" (That's Z -> N, N -> Z is obvious)

@StackMeter Extended Dyalog APL, 13 bytes: ⌂adic∘(>-⍨2×|) Try it online!

stack all infinity numbers in N vertically and knock the tower down, and now you have infinite numbers to both sides and therefore Z

@hyper-neutrino Looks good. ^^ is golfed using my own extension to > where it takes a default left arg of 0.

oh, cool :D

magnitude, double, and subtract (is negative?) ?

(as opposed to subtract from, hence the ⍨?)

@pxeger Describe each element of Z, order those descriptions lexicograpically then map to N :P

lol

@hyper-neutrino Yes, ⍨ moves the right argument to the left side (and the left to the right, if a left exists)

@pxeger Ask the SO user with the user id N for a unique member of Z, write those down :P

ah, okay. so it lets a dyad be called monadically and just reflects the element to both sides?

@Adám I think that's equivalent to @ in Jelly

@hyper-neutrino Exactly.

@cairdcoinheringaahing well, since jelly links are fixed arity, not quite but yes it's the same concept

Oh, so it's `, not @

it's both

because APL functions are variadic :p

ಠ_ಠ

so ⍨ forces the dyadic representation to be used

so f⍨ x is x f x and x f⍨ y is y f x

@cairdcoinheringaahing More correct to say that Jelly's ` and @ are equivalent to ⍨ :-)

true :P

@hyper-neutrino And a trick: f⍨⍨ leaves the args where they are if used dyadically, but uses the right argument also on the left if used monadically.

oh cool

so that is pretty much what ` is equivalent to I think?

(although ofc that uses the left arg cuz jelly is LTR)

@hyper-neutrino It's equivalent to f`}`

ah

Wait, no

is there a thing to convert a monad into a dyad ignoring one half? as in x F? y is the same as F y (or F x, interested in both)

(the equivalent of { / })

... I don't think you can find an equivalent

i'm not sure you can say there even is a direct equivalent because the whole point of ⍨⍨ is how it interacts with variadicity, if i'm reading this right

because there is no such thing as calling a monad with a right argument in Jelly

ಠ_ಠ

I get why that works, and what happens, but: Try it online!

wait, what

so it squares it so val is 25, and then starts an inverted dyadic chain using 2, 25 ?

No

That uses 2-2-1 chaining, meaning the monad ² is a dyadic chain with 5 on the left and [2,5] on the right. The monad just ignores the right argument and returns 25. It then passes to the 1-chain, which halves it

oh, right...

wait what does 2,2,1 do??

It's 2-2, 1

oh i thought it was its own rule that i'd somehow forgotten

ok

so it calls square on 5 and (5, 2) - which is just 25, and that gets halved

The second one uses 1, 2-1, so it works as you'd think

@hyper-neutrino Yes

ð_ð

but in a monad, it squares, and then inverted pairs with half, so H,²

I don't get that one

lmao

um... ??

that is hilarious and also what

so the ð is a no-op assuming i'm not stupid

it should be

removing the last one gives 3 as expected

wtf

wha...

but

@hyper-neutrino wait what

@cairdcoinheringaahing 2,2,2 chain

means it's pair(left-arg(5, 2), id(5, 2))

@cairdcoinheringaahing 2,2,2 chain means it's pair(left-arg(5, 2), right-arg(5, 2))

Oh right, oh course

@hyper-neutrino That makes sense

that explains ð_ð as well

it's a 2,2,2 chain meaning subtract(id(x, y), id(x, y))

ofc

@hyper-neutrino so this is a 2,2,2 chain meaning subtract(id(x, y), pair(x, y))

What about ð_ð,? That's sub(id(x, y), pair(x, y)), which ofc yes

and then ð_ð, follows from that as well

so x - [x, y] which is why we get [0, x - y]

@hyper-neutrino ⊢∘f or f⍤⊢ in APL.

⍤ nice

or in this case, total chaos and confusion :P

What about 2 of them: ð_ð,ð_ð :P

the thing about jelly (most of the time, at least) you look at really weird things and it looks so confusing and wrong but once you break it down piece by piece it eventually all clicks together and figuring it out is pretty rewarding :D

yeah

@cairdcoinheringaahing ಠ_ಠ_ಠ

2,2,2-2,2?

@hyper-neutrino -5 :P

except in the case of ƙ the reward is just a different kind of confusion

start with subtract(id(x, y), pair(x, y)) and then subtract(v, id(x, y))

@UnrelatedString i mean i think we finally figured that one out

we definitely figured it out

but it still leaves the question of why

and then next time we'll forget again and need to figure it out again /hj

yep

@hyper-neutrino It's the same as ¹_,_ḷ

Or _,_ḷ

wait why would those be the same

wait what

oh it's cuz you're calling it monadically

shouldn't the ¹ completely change the chaining

so 2,2,2 doesn't happen

oh

Which is _, and then passed to _ḷ, which is two 2-2 chains

yeah

yeah sorry i didn't realize this was monadic

lol

Monad vs Blank right argument :P

I think that by our rules, we can require a blank left/right argument to a link, in order to change the parsing

Don't think I've ever seen it done tho

Another one

if it's ever come up the program probably just started with ð, although that would make the right argument the same as the left instead of an empty string (?)

@UnrelatedString yes

> The innovative Go Notation is syntactic sugar for the highly sophisticated mathematical construct of Gonads which are used for J/O (Haskell's alternative to I/O). Gonadic J/O is practiced by very few and understood by still fewer; the Haskell expert will be adept in their handling of Gonads.

@hyper-neutrino no

iff the right arg is absent

> Haskell is an obscure, hated and mostly disused esoteric programming language named after the planet Haskell, a large and moving planet orbiting Aldebaran. It was developed in 1969 by Donald 'Waddler' Duck, in collaboration with Adolf Hitler

that's impossible! Hitler died in 1945

@user ok i just looked up what gonad means and ಠ_ಠ

wait did you not already

Imagine not knowing what gonads are

i think i have heard the term before but forgot what it meant

google it kappa

> JavaScript is a general-purpose programming language who receives huge amounts of undeserved hate from many different people across the globe. In spite of this, the ungrateful haters who only see one side of the story never understand that they would simply not be able to express their distaste for the language for other people if not for JavaScript.

duckduckgo !d gonad ftw

@pxeger s/Haskell/JavaScript/ :P

let _gt = (x, y) => yunoify((x.type == "sequence" ? (y.type != "sequence" || _seq_gt(x, y)) : (y.type != "sequence" && GT(x.type == "number" ? x.value[0] : x.value.charCodeAt(0), y.type == "number" ? y.value[0] : y.value.charCodeAt(0)))) ? 1 : 0);

what's a yunoify?

You think that's ugly? Look at this Haskell example from Uncyclopedia:

let_in =let in'let'in=let in let in" let" in
	     let in let
    let'in let_ _in =
      let_>>_in in
     in'let'in++
		    let in_let'in=let
	        	  in " let in let" in let'in
  in_let'in in'let'in

convert into yuno's internal representation

@hyper-neutrino this is excellent, idiomatic, everything i want my code to be

@user tf is this

@RecursiveCo. yuno know what yuno is?

@hyper-neutrino fix$(<$>)<$>(:)<*>((<$>((:[{- Jörð -}])<$>))(=<<)<$>(*)<$>(>>=)(+)($))$1

beautiful

no I don't really know what yunoify is, internet searches yielded nothing useful

The Java article's fun too (warning: slightly NSFW)

yuno is my new golfing language lol. interpreter, github, se room - link joins room

Oh no wonder

@user that first quote from the pope tho lol.........

STDERR: "[object Object]"?

Uncyclopaedia's sister sites include: UnNews (news on crack), Undictionary (best left unsaid), and Why? (because)

> we won't de-platform you for your views, as long as they're funny.

@RecursiveCo. link?

@hyper-neutrino Sounds exactly like something the pope would say :P

If you type "abc" (without quotes) into the yuno interpreter

:P

#cancelculture, look they're deplatforming people!!! :P

> What makes Uncyclopedia great is that it's a satire of an encyclopedia, kind of like The Daily Show is of television news

@pxeger Thank you, you just helped me waste the rest of my day

wait why am i throwing a sequence ??

hmm

idk, at least you're not throwing chairs

@pxeger but TDS is a left-wing no politics please

maybe the chair is an eyesore

oh a and c are not defined

b is base conversion so you're trying to convert 0 to base 0

wow candice is pretty good

i should use a more descriptive error message

just make every error message, no matter what, [object Object]

@Razetime No she isn't, she keeps trying to get Phineas and Ferb in trouble!

@RecursiveCo. Vanilla HTML+CSS FTW. Who needs JS‽

WAIT NO. i'm supposed to be returning that value ...

i typed throw instead of return lol

the classic

@cairdcoinheringaahing mmm

and you can throw whatever the hell you want in JS

@UnrelatedString either that or

@Adám try writing a chat app with only HTML+CSS.

@Adám PHP ftw >:)

could not infer valid type for program

oh yes

@Razetime I hate Husk's errors

this error is the error that has caused me unimaginable pain and suffering

@RecursiveCo. I've done that.

May I see? I'm interested

@Razetime Imagine using Urban Dictionary instead of ligma

@cairdcoinheringaahing imagine

sighs What's ligma?

LIGMA BALLS LMAO

bans pxeger

please do

:P

Although let's try to keep the room a bit more friendly from now on (cut back on the swearing/inappropriate jokes a bit) :)

@pxeger lmao I didn't expect someone to actually say it

@user ligma

@cairdcoinheringaahing Okay, just keep an eye on Joe

@user well I was kinda thinking the Maryland effect had kicked in on that joke at this point, but on reflection I don't think it has

@cairdcoinheringaahing I know what it is, I just took one for the team

i definitely thought you meant something else by maryland

prior to the edit

@UnrelatedString ???

urbandictionary.com/define.php?term=maryland%20effect

@RecursiveCo. I don't have it at hand. Was pretty simple: Just a form and a central server serving all current messages upon requests. Of course, you'd only get new messages when you spoke or reloaded the page.

maryland has a good flag though

in a normal way

@pxeger I know what my state's flag looks like lol, I was responding to Unrelated String

but yeah it absolutely has

that just happened long enough ago that it's falling back off

@Adám Wow. But what did you use on the backend? Obviously all chat apps must have a backend.

probably APL knowing him

yeah probably

or php

speaking of which somehow to you people JS is worse than PHP

why would anybody willingly use php

@user Ligma is a recently discovered medical condition with the first recorded case in 2019 and studies dating back to around March of 2020. It was first discovered in Sawcon in a patient known as Candice, who was traveling to Sugma at the time and is believed to have contracted the disease from a wild fox.

@hyper-neutrino What did the fox say?

like js i can understand, cause it's needed everywhere in the web

idk why fox. couldn't think of more unfunny memes. but also ^^

@hyper-neutrino You forgot Joe

@user wHo'S jOe

JOE MAMA GOTTEM

@RecursiveCo. abc should no longer error and b functions as intended now

@hyper-neutrino joe NuTs

i vaguely remember hearing that php was slightly easier to use as an overall technology than other things you might use for whatever the hell you use it for when it was made

What did the sensei say?

@hyper-neutrino Frankly I didn't know how to use the language and just put in abc to test the UI cause I figured it would error. But is it actually a valid program?

@RecursiveCo. Hi, would you like to learn karate?

@RecursiveCo. omae wa mou shindeiru

@hyper-neutrino I mean, Lyxal's entire existence points towards one very well known unfunny meme: sus

@user no

@RecursiveCo. well a and c are currently undefined and b is "convert (left) into base (right)"

so b with no arguments is "0 in base 0" which is [0]

@RecursiveCo. Wax on. Wax off

@RecursiveCo. How about "Itch knee"?

Wax on. Wax off. Wax on. Wax off. Wax on. Wax off. "When am I done?" "Wax on. Wax off." Maximum recursion depth exceeded.

@cairdcoinheringaahing you mean? pig?

@RecursiveCo. The sensei was teaching an AI?

@user what

yes I watched the movie by the way but I don't remember "Itch knee".

@hyper-neutrino I was trying to come up with something funny

I thought that was one two in Japanese

i missed the reference if it was one :p

ichi ni

OH ichi ni

which sounds

similar

but yeah no lmao

no that would be "itchy knee" not "itch knee"

well it's actually "ee-chee" not "i-chee" but close enough

lol for some reason I remembered it as itch, knee, san, ...

lol

lol

itchy sandknee

ichi, ni, san, shi, go, roku, shichi, hachi, kyuu, juu

@hyper-neutrino Looks like I missed the i at the end of shichi and hachi too, then

i mean

the way they

're pronounced

tip: the only consonant a japanese word can end with is n

it's often barely there

itchy knee in the sand: she wants to roku and roll. (rock) She cheats and hachees (hachoos) and queues waiting for her juu (juice). how to make a short story out of japanese numbers

phonotactics ftw

Nice story

thanks

@hyper-neutrino ban

I once started to try to learn japanese then gave up because, like, well, not sure actually

or hito, futa, mi, yon, itsu, mu, nana, ya, kokono

that's also 1 - 9

@UnrelatedString This might sound dumb, but I have to ask - does your enter key get pressed automatically every few seconds (or is there something wrong with it)? It always seems like you get interrupted in the middle of typing a sentence and your message gets broken up into several parts

and i probably got some of them backwards between the two

i'm honestly not sure what happens all the time

@hyper-neutrino Wait, there's more names for the same numbers?

@RecursiveCo. あなたはいつでもグーグルトランスを使うことができます

@RecursiveCo. Same

apostrophe is right next to enter on many layouts - might be why?

nana is definitely 7

@user yes

@hyper-neutrino this is for counting people right

first four are definitely right

no clue otherwise

@Razetime not quite

wait it is at 7

@PyGamer0 what? Google Translate gave nothing

@hyper-neutrino I'm happy I didn't learn math in Japan :P

one person is hitori and two people is futari but beyond that it's just sannin

that's just 1 - 9 lmao

i literally did not read

@RecursiveCo. i used builtin keyboard translate

counting dates uses this though - hitoka, futsuka, mikka, yokka, itsuka, muika, nanoka, youka, kokonoka

@hyper-neutrino a third set of numbers?

After I started learning French and German in school, I couldn't really be bothered to learn a 4th language so I gave up on Japanese

that's more or less the second one

kind of

@ngn it's pretty much just the kun'yomi readings but with some modifications

Plus, I was teaching myself Japanese and learning the other 2 in school

@ngn it's more like "first, second, third" rather than "one, two, three"

The fact that this discussion started because of "what did the fox say" shows just how much we all love foxes

no we only like a single wolf

@RecursiveCo. what did the fox actually say?

@RecursiveCo. I thought it started because of Ligma

But only if it's a specific color

@Razetime Fear might be more accurate...

@user no someone said what did the fox say and then I said what does the sensei say and then people started arguing over Japanese numbers for some reason

Oh ok