The Nineteenth Byte

ASCII-only

11:00 PM

0.1 seconds, why does Charcoal take so long (it takes like .3s just to start up lol)

Also why is exit code 2

Downgoat

because has double bork so 1 bork + 1 bork = 2 bork = 2 error = error 2 = error code 2

Adám

I love in-place modification. Just wrote this:

  paths←w↓'.dyalog/' ''
  paths,¨⍨←⊂d,Path
  paths,¨←⊂Folder,'/'
  paths←∊paths
  paths,←d,⎕SE.SALT.Settings'workdir'
  paths(≠⊆⊣)←d
  paths,¨←'/'~¨⊢/¨paths
  paths←'\\'⎕R'/'⍣(~w)⊢'/'⎕R'\\'⍣w⊢paths
  paths,¨←⊂'setup.dyalog'

Some languages allow A+=42 meaning A=A+42. There's also -= and some Boolean operations. Any other languages than APL which allow any function there?

ASCII-only

Do you mean something like (pseudocode) A map= Math.sin?

Adám

@ASCII-only No connection the the CMC. e.g. A MyFn= 42

ASCII-only

@Adám Yeah I know

Hmm, seems like it's hard to have syntax for that

Adám

11:10 PM

Can you do
t = "Hello"
t += "World"
?

or whatever string concatenation is.

ASCII-only

@Adám You can do that in almost every language

Adám

@ASCII-only Because + is overloaded? Meaning it is only + and - that allow that?

Destructible Lemon

functions don't work the same as operators in a lot of languages

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Lots of Pi(e)! For Meta: Any tags other than code-golf, and pi? Dupe? Any errors? Clear enough? Your Task: Because everyone likes more pi, we're going to give them 999 decimal digits of it. Your program should output pi truncated (not rounded off) at 999 decimal places. For reference, he...

ASCII-only

@Adám No, they're separate operators, every operator allows that (aside from assignment operators)

Adám

11:12 PM

How about
N = 4
N ^= 2
to get N == 16?

Mendeleev

@Adám Well, I can do str.map{|a| func a} in Ruby

Adám

@ASCII-only Oh, += has nothing to do with + and =?

ASCII-only

@Adám Nope

Adám

@ASCII-only ⍥

Mendeleev

although most things are class methods in Ruby, so instead of downcase a (or a downcase=) I use a.downcase!

Destructible Lemon

11:16 PM

@Adám apart from the fact that it is **= python does that

Downgoat

:( 0/10 for calling downcase and not downgoat

@DestructibleLemon *and cheddar and JS and VSL

Adám

In APL we can do L↓⍨←3 to remove the first 3 elements from L in-place or as I quoted above paths(≠⊆⊣)←d to split paths at delimiters d, in-place.

@Downgoat Is there a list of such modified-assignments?

Downgoat

@Adám developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…

Mendeleev

@Adám In Ruby you would do l = l[3..-1] so no go there

Adám

@Mendeleev Well, in APL too you can do L←3↓L, but that wasn't the point here.

@Downgoat Neat, thanks. But Why is there >>= and >>>=, but only <<= and no <<<=???

:38122539 That's L←3↑L or L↑⍨←3 for in-place.

Downgoat

11:21 PM

@Adám no C-based lang I know of has unsigned left shift op

Destructible Lemon

I'm not good at reading

Adám

@Downgoat That seems… inconsistent.

Downgoat

¯\_(ツ)_/¯

Adám

⍨

Destructible Lemon

@Adám I think it's because the left shift operator is unsigned anyway

Adám

11:23 PM

APL riddle: I⍨2→work¨week

Destructible Lemon

is it you don't like work weeks?

Mendeleev

heh

Downgoat

:| wat du says only 9.9GB is use but df says disk is using all 30GB

Destructible Lemon

@Downgoat is it some new way of making the gigabyte really small?

Downgoat

wat

Adám

11:27 PM

@DestructibleLemon I commute to go to work each week.

Destructible Lemon

@Downgoat like gigabyte is now 354334801 bytes

for marketing purposes

Downgoat

@DestructibleLemon no gigabyte is 2.857 times that

Destructible Lemon

@Downgoat but not for df

Downgoat

even if doing then shouldnt be so dif.

Adám

2b∨~2b←?

Destructible Lemon

11:28 PM

its the new giggabyte or something

@Adám dumb shakespeare quote

Adám

@DestructibleLemon Good job.

¨∊∪←=⊢2⍝∧?*

Destructible Lemon

is this the next part of the soliloquy?

Adám

@DestructibleLemon No, it is a statement about the USA.

Destructible Lemon

IDK then

Adám

@DestructibleLemon Each member of the union has equal right to comment and question everything.

Phoenix

11:35 PM

But is it valid APL

Well, the stuff after ⍝ probably is.

Adám

@Phoenix No, the ¨∊∪ part won't work as-is.

@Phoenix Also, monadic = is not defined (yet) in APL (it is in J and K).

Phoenix

What would monadic = do?

Destructible Lemon

@Phoenix x=x

Adám

that¨∊the∪←an=⊢2⍝∧?* is valid APL

Destructible Lemon

obviously

Phoenix

11:38 PM

@DestructibleLemon That doesn't seem useful though.

Adám

@DestructibleLemon Self-classify in J, Identity matrix in K.

Phoenix

@DestructibleLemon That would only be useful for JS because NaN==NaN yields false, so you could check for NaN

ASCII-only

@Phoenix ... That's false in every language

Adám

@Phoenix That's not the only thing in JS which doesn't equal itself.

Downgoat

:| apt just borked again and I think it is removing kernel again

Phoenix

11:40 PM

@ASCII-only Really? Not that many languages have an NaN

Adám

@ASCII-only Not in K

ASCII-only

@Phoenix *NaN literal

New Main Posts

0

Q: How many valid programs can you write?

Backstory: I think that my boss might final realize that I don't any enough work, despite being paid by the hour. I want to throw him off track, by writing as many valid programs as I can to send to him. Unfortunately, due to budget cuts, my keyboard only allows each key to be pressed once. Spe...

code-challenge

Destructible Lemon

s/language/languages with NaN/

Downgoat

Quetion; what does this mean: /etc/apache2/envvars: source: not found

Phoenix

11:41 PM

@ASCII-only In what language, other than JS, is it false? (Probably PHP, now that I think about it)

Downgoat

the file exists

ASCII-only

@Phoenix Every language (other thank K)

@Adám :| Oh no K isn't IEEE754-compilant

Adám

@ASCII-only I don't think Arthur Whitney cares about any standards except those of speed, consistency and conciseness.

Hm, even J says that _. is different from itself.

Destructible Lemon

make a language where NaN can be equal to itself under certain circumstances

ASCII-only

@DestructibleLemon Already done, it's called K

Destructible Lemon

11:45 PM

cool

Adám

@ASCII-only No, it is always equal to itself in K.

Destructible Lemon

aha!

you have been exposed as a fraud!

ASCII-only

@Adám Well yeah, in this case certain circumstances = every cirsumstance :P

@DestructibleLemon >_> It's still certain circumstances

Adám

@DestructibleLemon VTC as unclear what the circumstances are.

Destructible Lemon

well I don't really get NaN

what kind of ops give NaN? division by 0?

ASCII-only

11:47 PM

@DestructibleLemon parseInt('a')

@DestructibleLemon That gives Infinity

Destructible Lemon

ok then: parseInt('a')==parseInt('a')!=parseInt('aa')

ASCII-only

@DestructibleLemon ... They don't give different NaN's

Destructible Lemon

@ASCII-only exactly!

ASCII-only

@DestructibleLemon There's no point, it's just insanely memory-consuming

Destructible Lemon

this is why the language is different!

@ASCII-only please tell this to esolang creators and also just storing a string

ASCII-only

11:49 PM

@DestructibleLemon Most esolangs take a same amount of memory

MD XF

What are some good challenges to solve in newly created languages? aside from Mendeleev's

Destructible Lemon

@MDXF primes

MD XF

link?

Downgoat

@DestructibleLemon Infinity + -Infinity and 0/0 and things like Math.pow(1, Infinity) and Math.sqrt(-1) and other out-of-domain funcs

Destructible Lemon

MD XF

11:52 PM

ಠ_ಠ

Downgoat

@DestructibleLemon halp cartoon character name are confuse

MD XF

link to the primes challenge pls ಠ_ಠ

Destructible Lemon

@Downgoat no this is luigi aka link

get it right

trichoplax

@DestructibleLemon The same joke is only funny so many times. That number tends to be smaller when the joke is a large image in chat...

Destructible Lemon

> funny so many times

it sure is

ASCII-only

11:56 PM

i just tried to paste 106kb into vim and now my laptop keeps beeping halp

Phoenix

@ASCII-only Hold down the power button for 10 seconds

trichoplax

@DestructibleLemon Perhaps I need to be less subtle: Posting the same large image joke again is likely to lead to someone being kicked

ASCII-only

wait nvm it's just pasting super slowly

Destructible Lemon

I think that the current link inflow is at a sustainable level

MD XF

Did someone say... link?

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