The 2nd Monitor

Basically I replaced n with aData[i] in the Non-working implementation. Am I missing something fundamentally wrong? Passing implementation: static long[] sort(long[] aData) { for (int i = 1; i < aData.length; i++) { long n = aData[i]; int j = i - 1; while (j >= 0 &&...

Thomas Ward

@skiwi nope. But i'm going to leave the -$10 there now :P

@CaptainObvious OT

someone bring a hammer down on that

Thomas Ward

5:27 PM

@Hosch250 your comment is obsolete (see mine I just added)

:P

Hosch250

Well, I'm more than happy to stay out of a potential fight.

Thomas Ward

I'm more than happy to bring down the HAMMER OF HELL, if I had it on CR.

when's your next mod election again? :) (just kidding xD)

Hosch250

Last I heard, Mat may or may not hold the hammer until spring, which is supposedly a better time for elections.

He may hold it indefinitely.

I'm pretty sure that Vogel or Phrancis will win, though.

Marc-Andre

Nah @Duga will win before them

Hosch250

Duga isn't running.

Marc-Andre

5:34 PM

I know... I was trying to make a joke well...

Didn't work I guess ehe

How are you @Hosch250 ? Having a good holiday time?

Hosch250

More or less.

Working on my checkers game.

Marc-Andre

@Hosch250 Nice! You're doing with which framework/language?

Hosch250

F# for the logic, C# for the UI.

Marc-Andre

Interesting combination! How is it going so far?

Hosch250

I have the basic minimax-with-alpha-beta-pruning AI done.

And I have sound effects and themes.

Marc-Andre

5:39 PM

That is quite a lot actually!

Hosch250

Yup.

Right now, I'm working on making a board from a FEN string.

After this is done, I'll be able to do takebacks.

I have move history implemented in the logic, but I don't display it in the UI yet.

Marc-Andre

Oh great! It looks really interesting. How does C# and F# talk to each other?

Hosch250

5:58 PM

Through .NET.

They are both .NET languages, although it is actually a little tougher than that.

C# uses mostly the .NET types, while F# has a lot of native types.

I build a facade that casts between the two types in my C# project.

Marc-Andre

@Hosch250 interesting. Never really done something similar as far as I remember.

Hosch250

Hey there, @robringstad.

robringstad

Is anyone here familiar with Tkinter for Python?

howdy, @Hosch250

Hosch250

I'm not familiar with Tkinter; I've only used it once.

robringstad

No worries, I'm muddling through it rather blindly and have been getting things to work, but want someone to see if my code needs major refactoring before I get any further.

skiwi

6:08 PM

@Marc-Andre You can try Java and Clojure if you wish to :P

Hosch250

6:23 PM

Well, you can post it for review.

We have a few Python people.

Captain Obvious

0

Q: Matplotlib Animation inside of Tkinter Widget

Looking for almost purely code review, as I am new to Tkinter and am not sure if there are major style guidelines I have grossly overlooked. I am using Matplotlib to animate some functions and display them in a GUI using Tkinter. from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg im...

python tkinter matplotlib

robringstad

I just did :)

skiwi

Wow I make stuff and it just works

Hosch250

Wait, I think that is off topic as broken code.

Marc-Andre

@skiwi Not sure I want :P I have other fish to catch :D

robringstad

6:25 PM

Uh oh, why is it off topic?

i probably should have put the paragraph at the bottom, before the code, it explains my specific question

Hosch250

Because it doesn't work as intended.

robringstad

I literally just understood what they meant by broken code right now

Hosch250

If you have a bug, then you ask on SO. If your code is working, we'll make it nicer.

robringstad

It's clear now, thanks mate.

Hosch250

NP.

skiwi

6:29 PM

@robringstad Could you clarify this perhaps? If we can find a wording that works better then we could make a meta to change it

janos

monking

skiwi

Users in general are having trouble to understand what broken code means

Hosch250

monking

skiwi

nomking @janos

janos

how's it going guys

I hope you're having a good new year's eve

robringstad

6:31 PM

Clarify what, @skiwi ? I'm not sure what 'this' is, and I'm so new I don't even know what a meta change is other than I've read the phrase before

janos

@robringstad he meant to make it clear in your question that the code is fully working as intended

robringstad

Ah I gotcha!

skiwi

@janos Spending my last hours writing code, it can never be done again in 2016 :P

janos

at least that's what I thought he meant ;-)

robringstad

I can edit the code to remove the bug'd bit

janos

6:33 PM

in Hungary we say that whatever you do on the first day of the year, you'll be doing it the whole year

skiwi

@robringstad Well actually, I'm trying to understand why you (and a whole lot of other users) didn't understand what we mean by broken code initially

I refuse to believe that the people are stupid, so probably our wording could be better :P

Hosch250

@janos Well, I'm programming on the last day of the year.

skiwi

@janos Wow cool, means I'll have a job next year then :D

janos

we say nothing about the last day

Hosch250

I guess I'd better be careful, because next year I get my first fulltime job.

robringstad

6:34 PM

Literally my issue is, I read 'broken' code

skiwi

Oh... first day, whoops

janos

@skiwi you didn't get the last one you told me about?

robringstad

and assumed it was the 'common' definition of broken, as in

janos

many users seem to think broken means "doesn't compile"

robringstad

doesn't work at all

skiwi

6:35 PM

@janos Still negotiating, but the holidays are dragging it

robringstad

i think differentiating buggy vs nonworking

would solve it

janos

it's one interpretation. but we use a different one

robringstad

but my issue is i just didn't read the whole page on broken code, i just read the phrase and assumed i knew what it meant

janos

I always ask "does this work as intended?" -- that seems to clear things up

Hosch250

Yep.

skiwi

6:35 PM

Ah okay thanks @robringstad :)

Hosch250

That's what most people do, so we should change that to make it more clear right off.

skiwi

On the other hand there's users who will claim that their code is working as intended because they intended it to have the bug that they couldn't solve

robringstad

^hahah

Hosch250

@skiwi LOL.

skiwi

(Not backwards reasoning at all /s)

Hosch250

6:36 PM

So, at that point, it is a documented feature??

skiwi

@Hosch250 Well it's only that way because then we might point it out here at CR :P

robringstad

now that's a deep question

is a bug that ends up making stuff work, actually a bug at all?

EBrown

@robringstad Some code is supposed to have bugs.

Hosch250

@EBrown Documented limitations, more like it.

robringstad

I was thinking more of a side-effect that produces a positive result in the end

EBrown

6:39 PM

No mine produces a negative result.

Some really big negative number.

robringstad

lool

skiwi

@robringstad It can actually happen that you've got two bugs in your code that cancel each other out... Now, is your code bugged or not?

Hosch250

@EBrown Best pun ever.

robringstad

What I had posted did have a bug, but am editing now

Hosch250

@skiwi Definitely bugged.

robringstad

6:40 PM

i deleted that post

skiwi

Hmm, does it make sense in C# when de-serializing JSON into objects to calculate a class property based on two JSON properties?

Hosch250

Why not?

Depends, really.

skiwi

My JSON may have a playerClass and classes property, but in my object I want to have a HeroClasses property

EBrown

So apparently SESE is rarely used.

skiwi

Though I see a suggestion just now that I should keep a CardJson objects for deserialization and a Card object that uses the deserialized JSON to build up the real property

Hosch250

6:45 PM

@EBrown It's young yet.

And not many people know about it.

janos

Is it young?

EBrown

I'm not saying I'm upset about that or anything, just making a comment.

janos

what is "SESE" ?

EBrown

@janos sese.evbpc.com

Built it months ago, been improving ever since.

janos

oh I see

EBrown

6:51 PM

In all fairness I do absolutely nothing to advertise it. Lol

skiwi

(Tip: Start advertising)

Hosch250

Get SE staff to use it.

EBrown

@Hosch250 Not likely, they have better tools at their disposal.

skiwi

So it's like SESESE?

EBrown

@skiwi Huh?

skiwi

6:52 PM

Because SE is using it ^

Hosch250

Get the news out to the other mods--maybe get someone to post it in the mod room.

@skiwi "Stack Exchange Statistic Explorer"...

skiwi

Oh... nevermind :p

Hosch250

Everyone getting ready for the chat hat, or something?

Lots of new users coming in.

skiwi

Aha, so my properties were not being set anymore by the JSON deserializer because I removed the setter

janos

you still have stars?

2

skiwi

6:57 PM

@janos stars--;

WiCK3D POiSON

072 097 112 112 121 032 078 101 119 032 089 101 097 114 032 033

janos

I thought everybody here would be out until the next day

EBrown

I haven't used any yet. ;)

janos

@WiCK3DPOiSON happy new year to you too ;-)

skiwi

The bots are taking over

WiCK3D POiSON

6:58 PM

084 104 101 032 101 110 100 032 105 115 032 110 101 097 114

Mast

?

@janos Saved mine, I know what's going to happen :-)

Hosch250

@janos That doesn't happen until 5 minutes next UTC.

Of course it isn't.

I successfully built a board from FEN notation.

Phrancis

7:17 PM

Monking!

Hosch250

Now I need to make a board into FEN notation.

skiwi

Monking @Phrancis

Hosch250

Monking!

skiwi

Hmm am I blind or can I not easily print a list in C# as [..,..,..] instead of the class name + unique hash identifier?

Hosch250

You need string.Join(separator, list.Select(item => item.ToString()))

And you need to override ToString() on the item values.

Actually, you should be able to do string.Join(separator, list)

And that should call ToString() automatically.

skiwi

7:21 PM

Hmm okay, not too bad, though Java does it automatically

It's mostly for debugging purposes though..

Mast

Make a Debug class.

Hosch250

Like System.Diagnostics.Debug? So you can Assert and WriteLine?

t3chb0t

@Mast what is a Debug class?

Mast

@Hosch250 Another zombie bites the dust.

@Hosch250 And whatever other Debug statements you need to convert your data into something printable for debugging purposes.

So, yea.

skiwi

(Just tell me if I'm asking too much)

private IList<HeroClass> CalculateHeroClasses()
{
    if (Classes?.Count > 0)
    {
        return Classes.SelectMany(clas => StringToHeroClassDictionary[clas]).ToImmutableList();
    }
    return StringToHeroClassDictionary[PlayerClass].ToImmutableList();
}

Why is if (Classes?.count > 0) working? I know that if (null) doesn't automatically coerce to if (False), but the former statement somehow does?

Mast

7:32 PM

magic

skiwi

@Mast Only Javascript can do magic (:

Phrancis

Has there been a single on-topic question today? Everything I see is closed and/or deleted...

Captain Obvious

1

Q: Gradient computation in JavaScript

I'm working with some math-heavy code in JavaScript. I just realized that there's a render that currently takes about 30 minutes. 95% of that time is spent in a single ~40 line function that I've pasted below. I am not extremely well-versed in JavaScript math optimization, so my first attempts to...

javascript performance mathematics

Phrancis

Great timing @Cap'nObvious

I vainly searched all over SO and Google last night to find automatic struct initialization in C :|

Guess I just need to get in the habit of making all pointers assigned to NULL right after I declare them

skiwi

C and... automatic?

Phrancis

7:46 PM

^that

Hosch250

Now that I can read FEN notation, I guess takebacks is the next step.

Phrancis

Ooooooooo finally, a new compiler error! I think I'm making a little bit of progress :D

Captain Obvious

0

Q: PDO Insert Method

I'm currently creating a class that will have a bunch of my most common database functions. This is the first method I've made, I would appreciate any feedback, thanks! public static function insert($table, $params) { // Define initial query $query = "INSERT INTO `{$table}` ("; // F...

php database pdo

Mast

@Phrancis Sounds like you're trying to solve the wrong problem.

Phrancis

8:01 PM

Well, I'm really trying to find the real problem, but me writing C is probably about the equivalent of a 2 year old trying to solve a math equation

skiwi

You're supposed to solve problems instead of trying to create new ones :D

Phrancis

If I get a compile error instead of a runtime infinite loop, I'll call that progress

Actually, this is exactly what I needed to do, now my (wrong) functions are breaking because the pointer is pointing (correctly) to NULL instead of random garbage memory location

Error: pushTest() expected length 1, but actual length was 0

@CaptainObvious uhhhhhhhhh that's not how you build queries

skiwi

@Phrancis wow..

Phrancis

I believe the PDO is correct, but they string-building the queries...!?

That's essentially dynamic SQL, written with PHP.

Mast

How to hack a website: Enterprise version

Phrancis

8:09 PM

I feel sorry for that MySQL database server.

So, it does work. groan

Mast

So, going to tell him the full list of what's wrong with it?

Phrancis

It's really a design problem, not a code problem

Assuming $params is a K->V list/dict (whatever they're called in PHP)

You should really have a function/method for each different type of query, instead of a generic one for all queries that is built dynamically

Mast

@Phrancis They don't have a special name, you have to abuse ordinary Arrays to do it.

skiwi

Does this property make sense on HeroClass? public IList<Card> AllClassCards { get; private set; }

Mast

$array = [
  "key1" => "value1",
  "key2" => "value2",
];

skiwi

8:16 PM

I just realized I could also call it ClassCards

Phrancis

If you're going to type out all column names and then values each time, you may as well just type out the query directly and call it a day

Mast

That's 5.4 and upward though.

@Mast Currently using 7.0.0. — Joe Scotto 27 secs ago

PHP is already at version 7?

What did I miss....

skiwi

6

Mast

Oh, right, they skipped 6.

5.5 is the last I touched.

EBrown

FFS IIS

Phrancis

8:24 PM

Posted an answer.

Has anyone else been having issues lately with CR site pages loading really slowly?

janos

I'm heading out and won't be back in a while, so Happy New Year to you all folks! (and save your stars, I already got the hat!)

skiwi

@Phrancis In what way? Is it stuck on loading something cachable?

Phrancis

I know it's not my internet, just clocked well over 100 mbps speed downstream

skiwi

Asking because I've been having major issues with my browser cache for quite a while already

Phrancis

@skiwi The page loads, it displays the content but without formatting, then keeps loading for a while, then finally the formatting etc. is loaded

Mast

8:28 PM

@Phrancis I've had that a week or so back, but that was my ISP being an asshat.

Other pages had the same problem.

Phrancis

Maybe I'll reboot the PC first and see if that fixes it :D

skiwi

@Phrancis Sounds 100% like a cache problem to me

Except I don't know how to fix mine, it may have to do with having 1000 tabs open

Phrancis

lol the comment on my answer

EBrown

You can now filter the table at the bottom of the SESE Detail page by date ranges.

Phrancis

If you don't like repeated code, you should not write SQL related code

skiwi

8:34 PM

I broke my code and I don't know how

Mast

@skiwi Ctrl + Z is your friend.

skiwi

A working version is actually under source control

But I still don't know why it broke :/

Mast

@EBrown What's next, supporting multiple intervals?

Would be interesting to see the same chart per week, for example. With deltas per week.

EBrown

@Mast No, next is site-to-site comparison graphs and exporting of data.

skiwi

github.com/skiwi2/ArenaDraftAssistant/commit/…

It's literally that commit ^ I removed encapsulation via Lazy<T>

Hmmm... right

EBrown

8:36 PM

@Mast Make that an issue?

Phrancis

I just realized I had not restarted my PC since about 3 weeks ago

skiwi

I was using properties that were not initialized yet at that point and using Lazy<T> defers that until.. later, in this case after construction

Phrancis

CR pages load almost instantly now

EBrown

Well my error alert is all borked.

That's going on the list for tomorrow, since I already hit 'Hibernate' on my PC today.

And that takes ~20 minutes which is when I have to leave lol

Blech

skiwi

@EBrown wat? 20 minutes

EBrown

8:39 PM

Yeah we've talked about this before.

Dec 8 at 5:38, by EBrown

Takes ~15-30 minutes for my PC to hibernate.

Oct 17 at 16:55, by EBrown

Speaking of which: there's a 15 minute delay between when I click "hibernate" on my Desktop and when the PC actually finishes hibernating.

Mast

I don't understand what I'm looking at in the first column here.

Phrancis

@EBrown Looks like the filter works great, but it's not clear what format you are supposed to enter the dates as. Thankfully, looks like multiple formats work (even mismatching formats on same query)

Mast

EBrown

@Phrancis Yeah, it just uses TryParse, so any valid date format should work.

Phrancis

I entered start date as mm/dd/yyyy and end date as yyyy-mm-dd and it worked fine

EBrown

8:41 PM

@Mast That is the date that the record was acquired.

Hosch250

Wow.

EBrown

That means that it is data for the entire previous day.

Mast

Oh, the 16 is a year.

EBrown

Yeah.

Mast

brainfart

EBrown

8:42 PM

d MMM yy.

Thomas Ward

heh

Phrancis

@Hosch250 Cords are entirely too expensive

EBrown

@Phrancis You can even use named months. 1 Jan 16 and Dec 31, 2016 will filter all of 2016.

Mast

@Hosch250 Wat.

Hosch250

$59.99/month.

Phrancis

8:43 PM

wait, wat

That's gotta be wrong lol

Mast

HDMI cable for 60 bucks a month? That better be miles long.

3

skiwi

@Hosch250 Per month...?

Hosch250

It's from the Daily WTF.

Phrancis

And of course OP didn't like my answer

Truth hurts.

Hosch250

Lies hurt worse.

Mast

8:46 PM

@EBrown You got issues.

@Phrancis As long as it was a good answer, that's not your fault.

So, dynamically building SQL queries is bad?

I'm doing exactly that in my Library project...

Or at least, trying to.

Same reason, avoiding repetition.

WTF...

5 hours from now?

I guess that makes me the new Doctor.

Phrancis

@Mast Dynamically building SQL queries I think is a bad practice, for the reasons stated in my answer

That's coming from a guy who is normally on the other side of the code (that is, the database side)

EBrown

@Mast Thanks! :)

Mast

@Phrancis You say repeated code isn't a bad thing because that's more maintainable. I'm having trouble parsing that, it's usually the other way around.

Madness.

Phrancis

@Mast I agree in a general sense, but database/SQL related code is kind of a different thing

RubberDuck

O Hai! Can I plz haz hat 4 n4w y34rz?

3

Mast

8:55 PM

@Phrancis So, how should we SQL our code?

Thomas Ward

throws sticks at @RubberDuck

3

RubberDuck

XD

Phrancis

CREATE TABLE Foo (Bar INT);
INSERT INTO Foo (Bar) VALUES ('hello'); --Incorrect integer value: 'hello' for column 'Bar' at row 1
INSERT INTO Foo (Baz) VALUES (42); --Unknown column 'Baz' in 'field list'

@Mast Notice how the first error message from MySQL^^ is vastly more useful than the 2nd?

Mast

lol

I prefer my code to be without errors though. But I see your point.

Phrancis

Dynamic SQL is riddled with issues like that

Mast

8:57 PM

Is that true for all database types?

Phrancis

All SQL databases. I don't know about no-SQL databases

Thomas Ward