The Nineteenth Byte

ATaco

12:00 AM

Replace it with a text area.

Christopher 2EZ 4RTZ

what?

ATaco

(If you want it to be multiline)

Christopher 2EZ 4RTZ

No it is just one search

Not multiline

ATaco

What functionality are you trying to achieve from enter (or none at all)?

Christopher 2EZ 4RTZ

none

ATaco

12:02 AM

In this case, you're probably best with going with (almost) your original idea of $("#searcher" ).on("keydown",(e)=>{if(e.keyCode==13){e.preventDefault(); return false;}})

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Count letter frequency Inspired by question Tweetable hash function challenge, you should take the English dictionary used there and produce a program or function that outputs the the absolute and relative frequency of each character. It is CASE SENSITIVE and the APOSTROPHE is also accountable a...

Potato44

1:36 AM

RIP, I think my hard drive just died a sudden death

My laptop started beeping from where the hard drive is before a BSOD 30 seconds later and now the bios is complaining about no boot device.

Conor O'Brien

@ATaco or you could remove jQuery from your program.

ATaco

1:52 AM

In that case, use $("#searcher").onkeydown = (e)=>{if(e.keyCode==13){e.preventDefault(); return false;}}

Conor O'Brien

> $

I firmly believe in communistic javascript programming, no jQuery allowed

ATaco

That's fine, because $ isn't jQuery.

Downgoat

1) don't use jQuery pls 2) jQuery don't got onkeydown AFAIK

@ATaco oic query selector

ATaco

$ is highjacked by jQuery, but ^

Trust me I apparently Javascript.

Downgoat

also golf: e=>e.keyCode-13||e.preventDefault()||false

ATaco

1:57 AM

(I wasn't trying to golf that's just the only way I know how to JS, it's just bad habits)

Pavel

ATaco

VSCode > VS :P

Pavel

They achieve two different things. I wouldn't use VSCode for the things I use VS for, and vice versa.

On the other hand, VSCode is the best at what it does, while VS has thankfully been mostly made obsolete by Rider.

Helka Homba

If you could banish a popular programming language forever what would you choose?

ATaco

I've yet to find a thing I'd prefer to do in VS, however, I've not done much C#.

@HelkaHomba Python. Mwahahahahah!

Helka Homba

2:09 AM

JS would have to go methinks

Not Python :/

Python has bearable syntax and rules

ATaco

> Bearable syntax

> Whitespace dependent

Helka Homba

Well, except for indented multiline strings...

Or if you hate whitespace

ATaco

I hate the tabs vs spaces argument and python is like a beacon for that.

JS isn't that bad, but it's not very good.

Pavel

@ATaco It's better for organizing large projects that have multiple projects in a solution and dependencies and such. I use it for work.

ATaco

I can understand that, but I was quickly turned off by the interface and load times on my machine.

I don't want the first thing an IDE askes me to do to be log in.

Pavel

2:12 AM

@HelkaHomba C, so the purists will finally accept that they can achieve everything they want in C++ without arbitrary restricting themselves.

ATaco

C++, Because C is fine just the way it is.

Downgoat

@HelkaHomba Python

ATaco

Raises a hand to hifive/hoof the goat

Downgoat

@Pavel C++ compiler is ucky though (why you should obviously use VSL)

Pavel

@ATaco Load time decreases by 20x after the first launch (with the sign in and all) but is still quite slow. The interface is bad.

It really is better for managing projects with hundreds of classes though.

ATaco

2:16 AM

The only thing stopping me from making VSCode my main text editor is that I can't have multiple projects open in one window.

Downgoat

eehhhh, VSL has like 150 class and work perfectly fine in Atom

Conor O'Brien

@HelkaHomba C++, so the C++ heretics will finally accept that C is a valid language without having to think of themselves as superior

Destructible Lemon

@ATaco if you really want braces in python you can use them

Pavel

@ATaco This is implemented in VS Code Insiders

ATaco

struct > class :P

Pavel

2:18 AM

File -> Add folder to workspace

@DestructibleLemon Wat how

ATaco

Slams that DL for windows button

Destructible Lemon

ok so

Downgoat

@ConorO'Brien C++'s standard library is worse of a mess than the sheep's barn

Conor O'Brien

basically

Destructible Lemon

if x==3:
    #{
    print("hi")
    #}

Pavel

2:20 AM

ಠ_ಠ

ATaco

Uhmm.

Destructible Lemon

or however it is you guys use braces

Pavel

ಠ____ಠ

Destructible Lemon

it is a very versatile language

Pavel

@Downgoat No one says you have to use the C++ stdlib while writing C++.

ATaco

2:21 AM

Destructible Lemon

indeed

ATaco

The only way to write braces.

Downgoat

@Pavel lol good one

Conor O'Brien

just use D

Destructible Lemon

so you hate and like braces at the same time?

Pavel

2:21 AM

@ConorO'Brien An excellent alternative

ATaco

I write in Lua, thankyou.

if cond then statement end

Destructible Lemon

oh, you can use that

Pavel

statement if cond

Destructible Lemon

if x==3:
    #then
    print("hi")
    # end

Pavel

Ruby FTW

ATaco

2:22 AM

@DestructibleLemon That's not inline

Conor O'Brien

if(cond) {
    statement;
}

the only reasonable way

John Dvorak

(if cond foo bar) :P

Pavel

@ConorO'Brien Braces for one statement?

Conor O'Brien

@Pavel yeah

Downgoat

@Pavel if (cond) statement; is a thing

Conor O'Brien

2:23 AM

maybe not for a short statement, but for most statements

Downgoat

or VSL's if cond: one_statement_only

Pavel

@JohnDvorak Lisp: A language which I really want to know and really don't want to learn.

John Dvorak

Seriously - I like ruby's postfix conditionals.

Downgoat

though often braces are good because it provides place to put comment

Pavel

Yes. They are awesome.

Conor O'Brien

2:24 AM

@Pavel it's basically just (op operand1 operand2)

Pavel

Although I do prefer C-style

Destructible Lemon

@Pavel tbh lisp has a lot of weird things to be confused by and parens are not one of them

Downgoat

@ASCII-only should we also do postfix conditional in VSL

Pavel

YES

Also postfix loops

Downgoat

but we have if a == 0: return

@Pavel you mean do-while?

Pavel

2:25 AM

No, i += 1 until i == 4 # ruby

Downgoat

oh btw I used my first do-while loop ever (in 3 years of programming) 2 days ago

@Pavel :

Destructible Lemon

ok so I might make my koth language agnostic but that makes it slow what do I do

Pavel

But that's less pretty

Downgoat

do: i += 1
until i == 4

actually idk if : works with chain blocks idk lemme check

ATaco

repeat i = i + 1
until i == 4

Works in lua.

Downgoat

2:27 AM

> i = i + 1

Pavel

Lua doesn't have ++ or +=?

ATaco

Nope.

Downgoat

that sucks

Pavel

Can you define such operators?

I'm guessing you can

Because lua is magical that way

ATaco

Nope, Lua doesn't allow defining custom operators.

Pavel

2:28 AM

wat.

Destructible Lemon

ok so can anyone help me reduce lagginess on language agnostic challenges?

please

not with any current code just general tips I guess

ATaco

Lua gives you incredibly little control in regards to handling variables as varibles.

Downgoat

@ASCII-only wait how are we doing custom operator precedence

Pavel

Disguising Ruby as Javascript

ATaco

Oh, method_missing works like of like lua's setmetatable(_G,{__index = function(key) blah_blah_blah... end})

Christopher 2EZ 4RTZ

2:33 AM

Hey in Jquery can I make specific div items disappear on command (and come back on command)

ATaco

Yep, use .css({display: 'none'}) and .css({display: 'literallyanything'}) on those items.

Pavel

I don't believe that uses jquery.

ATaco

@Pavel My equa.lua library doesn't allow functions to implement any sort of traditional looping.

(.css is a jquery func)

Pavel

I could have sworn it was built in. Welp.

Christopher 2EZ 4RTZ

class="field">
          <li class="bold filter-button" data-filter="all">All</li>
          <li class="bold filter-button" data-filter="bustion">Combustion Gas</li>
          <li class="bold filter-button" data-filter="wet">Condensing Gas</li>
          <li class="bold filter-button" data-filter="emissions">Emissions</li>
          <li class="bold filter-button" data-filter="flares">Flare Gas</li>
          <li class="bold filter-button" data-filter="safety">Safety</li>
          <li class="bold filter-button" data-filter="savë>Save Money</li>

ATaco

2:34 AM

@ATaco However, Lambda calculus to the resque.

whileloop = call(x,x)(#call(x,x))

Pavel

How to break

Christopher 2EZ 4RTZ

i need to make all of those <li class> to dissappear so what do I do?

ATaco

I'm no good at lambda calc.

Christopher 2EZ 4RTZ

(i don't know jquery )

ATaco

How are you referencing the div?

$(".field .filter-button").css({display: 'none'}) should work.

Christopher 2EZ 4RTZ

2:36 AM

It is not really in div :P

ohh

Conor O'Brien

Abusing C #define again.

Christopher 2EZ 4RTZ

I just realized that div stands for divide

Downgoat

@Christopher2EZ4RTZ 1) don't use jQuery 2) use el.classList.toggle

or you can use react :D

ATaco

#isthislua?

Christopher 2EZ 4RTZ

@ATaco where do I put my div name

Downgoat

2:40 AM

CnR idea: longest code that does task X which cannot be golfed by removing and rearranging chars

Christopher 2EZ 4RTZ

@ATaco halp how do i make visable

Pavel

@Downgoat cough unary

ATaco

$(".field .filter-button").css({display: 'visible'})

Downgoat

@Christopher2EZ4RTZ www.stackoverflow.com/q/...

@ATaco display has no visible property

@Pavel nah, probably possible as the BF can be golfed

ATaco

@Downgoat Any invalid thing will default to it's default :P

Pavel

2:44 AM

@Downgoat But even after golfing it will likely be longest

Christopher 2EZ 4RTZ

Wait but how do I specify what div?

It is just making everything go away

Downgoat

@ATaco not if there is anyother style in which case any other style will take precedence. You can jstu use initial or even better classList

@Pavel yea and jelly is likely shortest in code golf.

Destructible Lemon

@ATaco what if someone made python but with braces instead of indentation? would you use it?

ATaco

No, because I'm stubborn.

Pavel

But jelly is at least hard to use.

Downgoat

2:46 AM

I see, BF is very easy to golf in

Pavel

Not very easy, but at least typable.

Downgoat

ಠ_ಠ jelly is typable just use codepage keyoard

ATaco

I have a codepage keyboard :D

ḅḷạḥ!

Downgoat

does jelly have verbose mode

Pavel

no

Downgoat

2:53 AM

:(

ASCII-only

@Downgoat hmm actually that's possible, but only when we bootstrap so I'd say don't worry about it atm

Downgoat

@ASCII-only ok

btw LLIR is on C9

I have the ExecutionGraph part done

Destructible Lemon

@ATaco what languages would have to be used for you to participate in a koth?

ASCII-only

Unless we want to extract operator things to shunting yard

Downgoat

I have docs at: staging.vihan.org/LLIR/docs

so we can start having backend creating execution graphs using import llir from 'llir'

ATaco

2:56 AM

@DestructibleLemon Java, Javascript, C/C++, Lua(Why tho)

Destructible Lemon

hmmm all of those are bad

except maybe lua

ATaco

C is bad.

You heard it here first folks.

Destructible Lemon

bad for a koth anyway

if you're programming a kernel it's applicable

ATaco

Tell that to Futuristic Gun Fight

Destructible Lemon

that one was a copy cat but it got answers because it was overly simplistic

just saying

can we close all the clone gun fight koths as dupes from now on?

ATaco

2:58 AM

But, it was fun!

I created a bot from a simple genetic algorithm!

Destructible Lemon

ok but is it possible that if I made a new language you would use it

Pavel

> all of those are bad
wat
> except lua
WAT

I think you just made history

No one else has ever said that

Destructible Lemon

I don't know lua really

it probably is bad

ATaco

:<

ASCII-only

Anyone know a fast way to do cumulative binomial distribution? Like given a number in the range of the number of outcomes convert that to a number in the distribution

Destructible Lemon

2:59 AM

arrays do not start at 1

Pavel

They do in Lua.

ATaco

No they don't

Tables start at 1 in lua.

Because they're tables, not arrays.

Destructible Lemon

you can't just call things by a different name and pretend they are different

ASCII-only

@ATaco hmm what about chairs

ATaco

table = {chair, chair, chair, chair}

@DestructibleLemon Is a list an array?

Destructible Lemon

3:01 AM

basically yeah

Pavel

Sure why do you theink it's called an ArrayList

ATaco

Even though arrays are, by definition, statically sized and such.

Pavel

It's a dynamically resizing array.

ASCII-only

:O TIL table is 4 chairs

ATaco

@Pavel There is a thing called an arraylist, but a list isn't an array.

ASCII-only

3:01 AM

^

Destructible Lemon

anything in the list of things data family should not start at 1

ASCII-only

@DestructibleLemon you what why

Destructible Lemon

sorry do you not believe in logic?

ASCII-only

Logic = I get first item with 1

0 is there only because of C...

Destructible Lemon

you just don't get it

ATaco

3:03 AM

Lua's tables are as much arrays as they are maps.

ASCII-only

@ATaco yes they are like JS >_>

ATaco

JS arrays are just fancy objects, they're cheating.

There's nothing stopping you from starting your lua tables at 0, but the tables themselves are designed to default at 1.

Pavel

JS objects are just fancy dicts

They're not even that fancy

ATaco

(But I would prefer it if lua decided to start their tables at 0)

Destructible Lemon

were they pretending to be anything else though?

syntactic sugar is sweet

Pavel

3:05 AM

Can you set the lua starting array index?

ATaco

Not for the constructor, no.

Pavel

e.g. in APL you can make it whatever you want with ⎕IO←0 or ⎕IO←1

In C/++ you can do someArray--

ATaco

Just define your own constructor: t = function(zero,...) return {[0]=zero,...} end t('arrays', 'start', 'wherever', 'you', 'want')

Destructible Lemon

@Pavel 0.5 pls

ATaco

funciton t(tab) tab[0] = table.remove(tab[1]) return tab end t{"or","even","do","this"}

Pavel

3:08 AM

@DestructibleLemon:

Crap my thing got wiped

I forgot to switch keyboards to a layout where ctrl+c works

Basically the assignment fails

Destructible Lemon

?

Pavel

You cannot assign 0.5 to ⎕IO

Downgoat

@ASCII-only do we want: sqrt 81 or 81.sqrt

Destructible Lemon

@Pavel this is such a cop out

ATaco

@Downgoat I think 9 is a bit shorter :P

Destructible Lemon

3:20 AM

Downgoat is bad golfer confirmed

Helka Homba

Clubs are hard to hold with hooves.

Pavel

@Downgoat I prefer 2 root 81

ATaco

solve n pow 2=81 for n

Downgoat

@Pavel that would definetly be 81.root(2)

Pavel

Thinking about it more .root is better

Helka Homba

3:32 AM

Is 81root2 possible? Assuming variables can't start with numbers

ASCII-only

@HelkaHomba nope, you need a space after root

Because variables can end with numbers

@Downgoat I'd say both but IDK, I don't really want to clutter global

Downgoat

@ASCII-only also you can use with comanda chain if you want natural-like syntax maybe

Pavel

Idea: syntax for inplace function calls, e.g. if used with ! foo = foo.bar() could become foo!bar()

Downgoat

idea: add unicode symbol like sqrt as custom operator in libnatural when we bootstrap

@Pavel we have foo = .bar()

Pavel

10/10

Although .= makes it fit in with += and the rest

I suppose that would look akward

ATaco

3:47 AM

When I see .= i think append to

(Thanks PHP)

Although I suppose this would imply that foo =. bar() works.

Downgoat

well you can also do like: let color: Color = .black and like newNode = .derive(from: .parent())

ATaco

Would that get the static value black of the class color?

Downgoat

it's same as Color.black

ATaco

Interesting.

Pavel

How would that last one work

Downgoat

3:51 AM

same as: newNode = newNode derive from: newNode.parent

ASCII-only

@Downgoat I thought both are already command chain

Downgoat

@ASCII-only like I mean 4 root 2

ASCII-only

@Downgoat doesn't that become 4.root(2), at least when command chain is fixed

Downgoat

yea

but 4.root(2) is bot comand cahin

Pavel

does foo = [bar] work (array access)?

ASCII-only

3:57 AM

Halp how to find probability distribution of n dice

@Pavel no that is an array...

Pavel

Like equivalent to foo = foo[bar]

Oh, I see

ASCII-only

@Pavel assuming you want foo as a function then $0[bar] would work

Pavel

I though {} arrays

ASCII-only

@Pavel no those are sets

Pavel

Right, right.

Is {} an empty dict or an empty set?

ASCII-only

4:04 AM

@Pavel empty dict

which is inconsistent with [] but those would be the ones used more often

{,} is an empty set and [:] is an empty whatever that is

Pavel

Um

ASCII-only

@Neil Shouldn't the first O be an E

Pavel

I would like to know more about whatever that is

Is that an error a thing

ASCII-only

what

Pavel

Does [:] error or do something

ASCII-only

4:07 AM

IIRC it was supposed to be something

compile-time dictionary or something like that

Pavel

Idea: Dictionary that can contain multiple of each key, keys have indexes.

ASCII-only

.-.

Pavel

So if we say foo = [a:b, a:c, d:e] we can do foo[a][0] to get b or foo[a][1] to get c.

Downgoat

@Pavel this is called dictionary of arrays

Pavel

Like sugar for dict of arrays but can doo foo[a] which is same as foo[a][0]

Downgoat

4:10 AM

@Pavel .. if foo is Array<T> it can't be T also ಠ_ಠ

Pavel

That's why it's not an array

Downgoat

@ASCII-only wait what {} is empty closure {,} is empty set. and [:] is empty dict

ASCII-only

oh ok

what is {:} then

and what is empty closure for

Downgoat

syntax error

ASCII-only

D:

Pavel

4:12 AM

Clearly you should implement my idea

Downgoat

@ASCII-only func ping(server: URL, callback: (Response) -> Void = {})

ASCII-only

is {foo: 1} also syntax error

Downgoat

ya

ASCII-only

@Downgoat right good idea

@Downgoat D: why

Downgoat

also compile error foo is not define

@ASCII-only because not valid syntax?

idk what that is like named set or idk

ASCII-only

4:13 AM

oh wait

that is unnamed struct isn't it

@Downgoat hmm true but i don't want to do like python needing quotes for every key

Downgoat

@ASCII-only no struct is struct name { body }

@ASCII-only :|

but then you have to do [[foo]:1] to use foo var as key

ASCII-only

i said unnamed struct

Downgoat

also doesn't play well with encoding

and primitives

and string constructors

ASCII-only

@Downgoat true

Downgoat

and multiple stdlibs

and @primitive statement

@ASCII-only I thought you say no unname struct

if we are then it would be like tuple (a: x, b: y)

ASCII-only

4:15 AM

hmm true

kinda want a use for {:} but yeah there isn't really any data structure that would make sense for it haha

Downgoat

set and like order don't really go together which is whhy i think we should use tuple syntax if we're doing

tbh named tuple good be good for like multiple return values when you don't want to create a new struct

e.g.:

Pavel

You could do the ruby thing

With symbols

Downgoat

return (value: x, remainder: x % a)

ASCII-only

oh yeah we should have symbols

Downgoat

@Pavel nah imo useless

@ASCII-only symbol = enum

ASCII-only

4:18 AM

@Downgoat yeah but like user would need to define global enum

Downgoat

??? why

please give real-use practical specific example

Pavel

138

A: When to use symbols instead of strings in Ruby?

TL;DR A simple rule of thumb is to use symbols every time you need internal identifiers. For Ruby < 2.2 only use symbols when they aren't generated dynamically, to avoid memory leaks. Full answer The only reason not to use them for identifiers that are generated dynamically is because of memor...

Downgoat

@Pavel 1) ruby is not VSL 2) VSL is strict type 3) does not address fact you can use strings 4) can't be compile-time checked 5) susceptible to typos 6) does not handle an APIs changes to symbols well if it were to occur

ASCII-only

@Downgoat strings are usually slow

but yeah enum can be used for all the usecases

ATaco

C Strings are pretty fast :P

(As long as you aren't using them as keys, I suppose)

Downgoat

4:29 AM

@ASCII-only in ruby not VSL

ASCII-only

@Downgoat in every language...

Downgoat

citeation-needed

ASCII-only

@Downgoat would you rather do on("eventname", cb) or on(.eventname, cb)

enum is internally int = more memory efficient, faster comparison

Downgoat

1) both would have same speed 2) neither, nodejs use yucky way of handling event

@ASCII-only not how symetric optimize work

ASCII-only

@Downgoat what is that

Downgoat

4:32 AM

LLIR's style of optimization

we would see that case as f -> p{ c_1, c_2, ..., c_n }; p(s -> f) (s being string). so we can convert s to a bit-repr representing the cases as there is no difference to LLIR

c_1 - c_n being case_1 - case_n

ASCII-only

right

would that work in an interpreter

Downgoat

VSL is compiled?

ASCII-only

yes but isn't it supposed to be scripting language too

Downgoat

it would use JIT

you would do a custom LLIR churner for JIT

ASCII-only

well i guess we can profile later anyway

Downgoat

4:38 AM

since conditionals need a predicate (which from it derives the branch mapping) we'd have a lookup -> p( \$0 -> case ) so we'd constant fold on that predicate to get the case

ATaco

4:57 AM

print(call(x,x,0)(#(branch(lt(y,30),call(x,x,y+1,write(y,'\n')),orr(y,x),x,y)),‌x,y)) is equa.lua printing all numbers from 0 through and inclusive of 30.

equa.lua is a golf library, aslong as you don't want it to do anything TC.

Pavel

5:25 AM

Why not implement loops

Also, is equa on tio?

ATaco

floop(0,le(i,30),i+1,write(i,'\n'))

I implemented loops.

And as equa is just a library, it's not on TIO.

Pavel

TIO has libraries

Like numpy and such can be imported from python

ATaco

Well, once I feel it's a bit more complete I'll poke dennis.

Pavel

> Last commit 2 months ago

k

ATaco

I haven't touched it in a while, so what?

Pavel

5:29 AM

Don't think will be a bit more complete any time soon

ATaco

If we took my commit history as a suggestion of completion I'd have a lot less half-finished projects.

New Main Posts

6:05 AM

0

Q: Increasing, decreasing, none or all?

Take two inputs, a non-empty vector/list containing digits 1 and 2 and a string (no, you may not take 0/1 instead). The string will be one of the following (in lowercase, exactly as written below: increasing decreasing ones twos all none If the string is ____ then you shall return the indices ...

ATaco

6:46 AM

@Pavel Readme added.

Pavel

6:58 AM

Neat

Transcript for