The Nineteenth Byte

* `i`, `I`, and `m~`: string input.
* `j`, `J`, and `m:`: numeric input.
* `k`, `K`, and ``m` ``: comma-seperated array.
* `x`, `X`, and `m;`: evaluated input.

Doᴡɴɢᴏᴀᴛ

Got it

Cᴏɴᴏʀ O'Bʀɪᴇɴ

cool

Watcha working on?

Doᴡɴɢᴏᴀᴛ

2

Q: Coding Convention Conversion

In that Coding Golf, you should convert one coding convention with TitleCase to lower_case_with_underscores. And... vice versa! Specification Change the casing in a following way: If underscore character is a delimiter, change the casing to Title Case without any of delimiter. If there are mu...

^ that challenge

Cᴏɴᴏʀ O'Bʀɪᴇɴ

Ahh.

Doᴡɴɢᴏᴀᴛ

is there like an if command where I can do something if an expression is true?

Cᴏɴᴏʀ O'Bʀɪᴇɴ

12:06 AM

Uh...

That's awkward.

I have a ternary choosing of values, ?abc - if a then b else c

Note that you can use $...$ to do a JavaScript literal, if all else fails.

(No pun intended.)

Doᴡɴɢᴏᴀᴛ

okay

How come whenever I click Full Run the input gets swallowed?

Cᴏɴᴏʀ O'Bʀɪᴇɴ

That's how the interpreter works.

You can try the command line that requests for input whilst testing, or open up the console and type jolf(code,input a, input b....)

:/

:\

:|

12:14 AM

how does retina work =/

2

I can't even replace all occurences of 'a' by 'b'

how does it take input

?!

so confused

Doᴡɴɢᴏᴀᴛ

@CᴏɴᴏʀO'Bʀɪᴇɴ how do I loop through an array?

Alex A.

carefully

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Doᴡɴɢᴏᴀᴛ You can use (space)F(array)(function) to do forEach, or Μ(array)(function) for map.

A function is something like d(expression) or D(expressions)}

Like this

Alex A.

I was half expecting that to be a rickroll

Cᴏɴᴏʀ O'Bʀɪᴇɴ

I dare not lose the first Jolfer.

(Besides me, of course :P)

Doᴡɴɢᴏᴀᴛ

12:19 AM

oh okay

@CᴏɴᴏʀO'Bʀɪᴇɴ why no work? D:

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Doᴡɴɢᴏᴀᴛ The M was a capital mu. Copy-paste this: ? hI'_ΜGI'_dH""

(Also, E is predefined to the empty string.)

Doᴡɴɢᴏᴀᴛ

okay

ohhhh

Cᴏɴᴏʀ O'Bʀɪᴇɴ

Yeah, Jolf uses lotsa greek characters

Thomas Kwa

> The M was a capital mu.

whyyy

I'm not learning Jolf now.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

Because that's the map function...?

@ThomasKwa D:

Oh well. I didn't lose anything ¯\_(ツ)_/¯

Thomas Kwa

12:23 AM

Why can't it be lowercase mu?

Doᴡɴɢᴏᴀᴛ

@CᴏɴᴏʀO'Bʀɪᴇɴ how do I make the first character of a string uppercase?

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@ThomasKwa Because that's the unique function.

@Doᴡɴɢᴏᴀᴛ py(string)1 iirc

Doᴡɴɢᴏᴀᴛ

Retina

The retina (UK /ˈrɛtɪnə/ RET-i-nə, US /ˈrɛtᵊnə/ RET-(ə-)nə, pl. retinae, /ˈrɛtiniː/; from Latin rēte, meaning "net") is the third and inner coat of the eye which is a light-sensitive layer of tissue. The optics of the eye create an image of the visual world on the retina (through the cornea and lens), which serves much the same function as the film in a camera. Light striking the retina initiates a cascade of chemical and electrical events that ultimately trigger nerve impulses. These are sent to various visual centres of the brain through the fibres of the optic nerve. In vertebrate embryonic...

@CᴏɴᴏʀO'Bʀɪᴇɴ ok

Thomas Kwa

@CᴏɴᴏʀO'Bʀɪᴇɴ What about m and M?

orlp

@Doᴡɴɢᴏᴀᴛ wow, thanks, I see now

Alex A.

12:26 AM

HAH

Thomas Kwa

Wait, you should have used Hebrew מ

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@ThomasKwa m is the math module and M increases the arity of a function by 2.

@ThomasKwa And Jolf is encoded in ISO-8859-7

Thomas Kwa

Oh, I see.

Alex A.

@ThomasKwa That's hard to type on a lot of keyboards though.

orlp

@AlexA. would you rate 10/10?

Doᴡɴɢᴏᴀᴛ

12:27 AM

@CᴏɴᴏʀO'Bʀɪᴇɴ why does this not work

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@AlexA. So are greek letters _/¯(ツ)

Thomas Kwa

@AlexA. That doesn't matter. More alphabets = better

Alex A.

@CᴏɴᴏʀO'Bʀɪᴇɴ Not if you have a Mac. µ∆π

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Doᴡɴɢᴏᴀᴛ Oh, it's py(string)0, haha

@AlexA. That's the first redeeming thing I've heard about mac.

Alex A.

@orlp Definitely not. I would rate it 10/10.

@CᴏɴᴏʀO'Bʀɪᴇɴ ಠ_ಠ

Once you go Mac, you don't go back.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

12:29 AM

I had a mac.

It was a defiling experience.

Doᴡɴɢᴏᴀᴛ

@CᴏɴᴏʀO'Bʀɪᴇɴ how do I do .slice(1)?

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Doᴡɴɢᴏᴀᴛ (space)L(string)1

@CᴏɴᴏʀO'Bʀɪᴇɴ okay

^_^

12:30 AM

Just cut yourself one slice

Doᴡɴɢᴏᴀᴛ

@CᴏɴᴏʀO'Bʀɪᴇɴ why is this not in the docs D:

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Doᴡɴɢᴏᴀᴛ I haven't covered the prototype functions yet.

e.g. (space)(char)(thing)

Doᴡɴɢᴏᴀᴛ

@CᴏɴᴏʀO'Bʀɪᴇɴ How do I do .join("")

Alex A.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Doᴡɴɢᴏᴀᴛ \x10(thing). Replace \x10 with the actual char by doing apply transformation of code.

Doᴡɴɢᴏᴀᴛ

12:32 AM

@CᴏɴᴏʀO'Bʀɪᴇɴ ~~O.O~~ okay

Cᴏɴᴏʀ O'Bʀɪᴇɴ

XD

Alex A.

Oh god I just realized that image is from a suicide prevention site. ._.

Doᴡɴɢᴏᴀᴛ

@CᴏɴᴏʀO'Bʀɪᴇɴ How do I do regex replace?

Cᴏɴᴏʀ O'Bʀɪᴇɴ

D: ^^

@Doᴡɴɢᴏᴀᴛ global?

Doᴡɴɢᴏᴀᴛ

@CᴏɴᴏʀO'Bʀɪᴇɴ yeah

Cᴏɴᴏʀ O'Bʀɪᴇɴ

12:34 AM

@Doᴡɴɢᴏᴀᴛ ρ"string""regex""replacement"

(lowercase rho)

Alex A.

Only the most important matters make it to my inbox

3

Doorknob

avocad very import

4

Dennis

import avocado

Alex A.

from mexico import avocado as avocad
avocad.juic()

Doᴡɴɢᴏᴀᴛ

@CᴏɴᴏʀO'Bʀɪᴇɴ Does the replacement have to be a string or can it be a function

Doorknob

12:37 AM

@AlexA. def juic(): time.sleep(30 * 60); return "i try for thirtee minut but no juic"

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Doᴡɴɢᴏᴀᴛ Um... lemme check

@Doᴡɴɢᴏᴀᴛ Yes, it can be a function:

return x.replace(new RegExp(y,"g"),s);

Doᴡɴɢᴏᴀᴛ

@CᴏɴᴏʀO'Bʀɪᴇɴ \o/

@CᴏɴᴏʀO'Bʀɪᴇɴ Is there an "insert string into another string at index" function?

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Doᴡɴɢᴏᴀᴛ I believe so, lemme check

Alex A.

I saw that screen cap of my inbox and I tried to click out of it because for a second I thought it was my actual inbox

Doᴡɴɢᴏᴀᴛ

@CᴏɴᴏʀO'Bʀɪᴇɴ Can I split on a regex, like: .split(/(?=[A-Z])/)

Cᴏɴᴏʀ O'Bʀɪᴇɴ

12:42 AM

@Doᴡɴɢᴏᴀᴛ Yes: R(string/thing to be coerced to string)(regex as string). If that doesn't work, tell me.

Doᴡɴɢᴏᴀᴛ

ok

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Doᴡɴɢᴏᴀᴛ And no, there isn't, but will be added.

Doᴡɴɢᴏᴀᴛ

@CᴏɴᴏʀO'Bʀɪᴇɴ not working :(

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Doᴡɴɢᴏᴀᴛ Append L0 to the string eval as regex: L0"(?=[A-Z])"

orlp

@AlexA. I JUST ATE PIZZA

HOW DID YOU KNOW?!

Doᴡɴɢᴏᴀᴛ

12:45 AM

this is so cool

Alex A.

@orlp O SHIT REALLY?!

Doᴡɴɢᴏᴀᴛ

@CᴏɴᴏʀO'Bʀɪᴇɴ ok

orlp

@AlexA. OMG YES!

Alex A.

AAAAHHHHH

I HAVE PIZZA POWERS

orlp

YEEEEEEEAAAAAAAAAAAAAAA

Doᴡɴɢᴏᴀᴛ

12:47 AM

@CᴏɴᴏʀO'Bʀɪᴇɴ I think this is a bug

It's becoming: RegExp["0"]("(?=[A-Z])")

orlp

gif wee

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Doᴡɴɢᴏᴀᴛ Wait split is G not R.

Doᴡɴɢᴏᴀᴛ

oh

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Doᴡɴɢᴏᴀᴛ RegExp["0"] is eval as regex

orlp

the face of defeat

Alex A.

12:48 AM

@orlp me irl

Doᴡɴɢᴏᴀᴛ

@CᴏɴᴏʀO'Bʀɪᴇɴ \o/ that did it

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Doᴡɴɢᴏᴀᴛ \o/

Doᴡɴɢᴏᴀᴛ

And how do you do join?

oh that's R

Cᴏɴᴏʀ O'Bʀɪᴇɴ

Yeah.

Doᴡɴɢᴏᴀᴛ

How do you make the whole string lowercase?

Cᴏɴᴏʀ O'Bʀɪᴇɴ

12:51 AM

px(string).

Doᴡɴɢᴏᴀᴛ

0

A: Coding Convention Conversion

Jolf, 37 bytes ? hI'_ΜGI'_dpyH0pxRGIL0"(?=[A-Z])"'_ Woohoo my first Jolf program! Try it online

\o/

PhiNotPi

1:03 AM

I just ran a 2000-thread "Hello World" program.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

wat

PhiNotPi

It was one of the example programs that Chapel comes with. I can change the number of threads to whatever I want, and it prints that many copies.

./hello6-taskpar-dist --tasksPerLocale=2000

Cᴏɴᴏʀ O'Bʀɪᴇɴ

oh

Alex A.

Chapel is pretty cool. A University of Washington class on high performance scientific computing had a guy from Cray come give a presentation where he introduced Chapel.

We used Fortran 90 for the class though.

PhiNotPi

Although I should note that --taskPerLocale wasn't an argument to a compiler or anything, it set a value that was used by the program at runtime.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

1:09 AM

_l and _L - slice an array with 2 and 1 arguments, respectively.

Does that sound right?

PhiNotPi

What language?

Cᴏɴᴏʀ O'Bʀɪᴇɴ

English.

I'm talking "2 or 1 arguments"

PhiNotPi

I think "2 and 1 arguments" is best.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

Okay, thanks.

@Doᴡɴɢᴏᴀᴛ Prototype module

Doᴡɴɢᴏᴀᴛ

@CᴏɴᴏʀO'Bʀɪᴇɴ yay

Cᴏɴᴏʀ O'Bʀɪᴇɴ

1:15 AM

@Doᴡɴɢᴏᴀᴛ BTW do you control the automatic byte counter on the userscript?

Doᴡɴɢᴏᴀᴛ

@CᴏɴᴏʀO'Bʀɪᴇɴ What do you mean by "control"?

Cᴏɴᴏʀ O'Bʀɪᴇɴ

I.e. write the code for.

Doᴡɴɢᴏᴀᴛ

@CᴏɴᴏʀO'Bʀɪᴇɴ Yeah

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Doᴡɴɢᴏᴀᴛ Could you make it so that Jolf is counted in ISO-8859-7 bytes?

You can upload a file to the interpreter encoded as such.

Doᴡɴɢᴏᴀᴛ

@CᴏɴᴏʀO'Bʀɪᴇɴ Yeah sure.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

1:17 AM

Which actually makes your answer 35 bytes. :D

Doᴡɴɢᴏᴀᴛ

oh, sweet :D

Sp3000

@MartinBüttner @TimmyD Tough tie with B&C I think, but let's just say agreed anyway :)

Alex A.

tfw you go to stroke your beard then realize you shaved it off the other day

Doᴡɴɢᴏᴀᴛ

@CᴏɴᴏʀO'Bʀɪᴇɴ Jolf has been added!

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Doᴡɴɢᴏᴀᴛ \o/

El'endia Starman

1:24 AM

@AlexA. Probably the same guy that gave presentations on it at Summer Academy 2011 and 2013. Did he talk about that adaptive mesh problem (or something) that they planned on solving over three separate summers but it took the first summer plus 2 weeks?

Alex A.

@El'endiaStarman I don't remember at all. Not even a little.

El'endia Starman

aw, bummer

Alex A.

Brad Chamberlain

(just found my notes)

El'endia Starman

I don't remember his name, so I dunno. ¯\_(ツ)_/¯

That said, good on you for taking notes. :P

Alex A.

Haha it's a PDF provided by the speaker

The topics he presented on: Cray, Partitioned Global Address Space (PGAS) languages, Chapel and PGAS, Chapel's motivation, its features, and the project status.

PhiNotPi

1:37 AM

TIL about Faraday waves: youtube.com/watch?v=nq3ZjY0Uf-g

2

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@ThomasKwa How do you represent negation in TI-BASIC?

ՊՓԼՃՐՊՃՈԲՍԼ

Overbar?

¯

El'endia Starman

@PhiNotPi Wooooaaaahhhh...

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@ՊՓԼՃՐՊՃՈԲՍԼ That'll work thanks

El'endia Starman

First time I've seen cornstarch shaken, not stirred.

I mean, tossed up and down by a drum/speaker.

That pun was too good to pass up... >_>

PhiNotPi

1:44 AM

Long story short, vibrating fluids can do some weird stuff: youtube.com/watch?v=3zoTKXXNQIU

El'endia Starman

@PhiNotPi I think I've seen that exact video.

PhiNotPi

Probably.

@El'endiaStarman Have you ever heard of Bohmian mechanics?

El'endia Starman

Hmm. No, I don't think I have.

PhiNotPi

It's a formulation of quantum mechanics that is non-local but deterministic.

El'endia Starman

Huh, interesting.

Alex A.

1:50 AM

@PhiNotPi ( ͡° ͜ʖ ͡°)

Doᴡɴɢᴏᴀᴛ

How do I check if a string has a char in Pyth?

woah...

@Doᴡɴɢᴏᴀᴛ You don't

@AlexA. why...

1:52 AM

The paths of photons through the double slit experiment as predicted by Bohmian mechanics.

Dennis

@Doᴡɴɢᴏᴀᴛ / counts the occurrences.

Sp3000

/ is count occurences, at least

ninja'd

Doᴡɴɢᴏᴀᴛ

@Dennis oh okay

El'endia Starman

@PhiNotPi Does the diagram change if the backdrop moves?

Dennis

You could also @ to intersect. That would return either the char or an empty string.

Sp3000

1:54 AM

Ah, }

There we go

El'endia Starman

{

Dennis

Right, } is Python's in.

El'endia Starman

{

Doᴡɴɢᴏᴀᴛ

How would I split after a capital letter :z"(?=[A-Z])"3 isn't working

El'endia Starman

Ignore the fact that they're in the wrong order. :P

Sp3000

1:55 AM

No El'endia, we don't need to deduplicate >:(

El'endia Starman

I was just balancing brackets!

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Sp3000 But that means more pyth to go around!

PhiNotPi

@El'endiaStarman I am not sure. The thing about standard Bohmian mechanics is that it actually uses the same equations that regular quantum mechanics does, but justifies them in different ways... so as it stands, it's more of an "interpretation."

El'endia Starman

Huh, interesting.

PhiNotPi

The important idea though, is that it could be the starting point for more things.

El'endia Starman

1:56 AM

yeah

PhiNotPi

The main problem, though, is that it is non-local, which conflicts with general relativity.

Since there is no universal idea of what "simultaneous" means, even though Bohmian mechanics involves all particles influencing each other instantaneously.

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