Coding Horrors: You can gather all your technical debt into one easy framework!

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VikingofRock: Aug 24, 2008

Volte posted:

Yes, but it tends to be a lot more invasive because you actually have to wrap each function call in an identity function with side effects, and if you're trying to analyze all the intermediate values to see where things went wrong, it can get tedious fast.

Not so! You can use Debug.Trace to smuggle in your nefarious value-printing side effects.

# ? Aug 24, 2019 01:53

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# ? Jun 8, 2024 05:46

Volte: Oct 4, 2004; woosh woosh

VikingofRock posted:

Not so! You can use Debug.Trace to smuggle in your nefarious value-printing side effects.

Well, sure. Debug.Trace is an example of the identity function with side effects I was talking about. My point was that it's not just a matter of adding a bunch of extra lines that you can then delete, you actually have to change the bindings to incorporate the trace function, when in an imperative language it would be as simple as putting a breakpoint at the end of the function and using the debugger to inspect each variable without having to change the code at all.

# ? Aug 24, 2019 02:08

LOOK I AM A TURTLE: May 22, 2003; "I'm actually a tortoise."; Grimey Drawer

Volte posted:

Well, sure. Debug.Trace is an example of the identity function with side effects I was talking about. My point was that it's not just a matter of adding a bunch of extra lines that you can then delete, you actually have to change the bindings to incorporate the trace function, when in an imperative language it would be as simple as putting a breakpoint at the end of the function and using the debugger to inspect each variable without having to change the code at all.

I've only dabbled with Haskell, but I've had some success with this pattern:

code:

import Debug.Trace (trace)

printf = flip trace

f :: Integer -> Integer -> Integer
f a b = a + b
  `printf` ("a: " ++ show a)
  `printf` ("b: " ++ show b) -- this one actually gets printed first lol

Of course it's not as ergonomic as in an imperative language, and it's nowhere near as good as setting breakpoints in a debugger. It also forces you to grapple with Haskell's sometimes counterintuitive evaluation strategy.

# ? Aug 24, 2019 09:26

Athas: Aug 6, 2007; fuck that joker

The technique I usually use for this is pattern guards:

code:


f :: Integer -> Integer -> Integer
f a b | trace  ("a: " ++ show a) True, trace  ("b: " ++ show b) False = undefined
f a b = a + b

This behaves as you'd expect with respect to evaluation order, the fact that it's built into control flow means you avoid most laziness shenanigans, and it is easy to add/remove.

In a monadic context, you can just put traces in front of most monadic operations.

# ? Aug 24, 2019 14:05

qntm: Jun 17, 2009

JavaScript code:

/**
 * Returns an object with only the desired properties of the source object. Note that this
 * does **not** handle recursion. Won't be the fastest thing for large filters or objects,
 * but the hashtable look-ups are restricted to exact matches (e.g. in operator). Deletes the
 * properties of the original object.
 * @param srcObject
 * @param filter: an Array of property names to search for in the srcObject.
 * @param filterType: String. "exclude" to add only match properties that are *not* in the filter
 * "include" to match only properties that *are* in the filter.
 * @param partialMatches: Boolean. If partial match "fun" will also match "funny" or "malfunction".
 * If false, only "fun" will match "fun".
 * @ param ignoreCase: Boolean.
 */
function filterObject(srcObject, filter, filterType, partialMatches, ignoreCase)
{
    //log
    filterType = filterType ? filterType : "include";

    filterType = filterType.toLowerCase();
    var matched;
    var filteredObject = {};

    if (!isObject(srcObject))
    {
        throw new Error("srcObject expected to be an object was : " + srcObject);
    }
    if (!isArray(filter))
    {
        throw new Error("filter expected to be an array, was: " + filter);
    }
    if (!((filterType === "exclude") || (filterType === "include")))
    {
        throw new Error("filter type must be a string that is 'ignore' or 'require'. You provided: " + filterType);
    }

    for (var property in srcObject)
    {
        for (var i = 0; i < filter.length; ++i)
        {
            matched = strCompare(filter[i], property, partialMatches, ignoreCase);
            if (filterType === "exclude" && !matched)
            {
                filteredObject[property] = srcObject[property];
            }
            else if (filterType === "include" && matched)
            {
                filteredObject[property] = srcObject[property];
            }
            else
            {
                // maybe put recursion here later?
            }
        }
    }
    return filteredObject;
}

Devotees of this continuing series of dreadful JavaScript utility functions will recall the definition of strCompare.

isObject and isArray are other utility functions which do pretty much what you would expect but are not horrific enough in their own right to be worth sharing.

# ? Aug 24, 2019 15:17

OddObserver: Apr 3, 2009

Aww, confusing for ... in with the in operator. How adorable.

# ? Aug 24, 2019 15:35

fritz: Jul 26, 2003

Javascript drama : https://github.com/standard/standard/issues/1381

quote:

What's the experiment? Whenever standard 14 is installed, we'll display a message from a company that supports open source. Currently, these are Linode and LogRocket. The sponsorship pays directly for maintainer time. That is, writing new features, fixing bugs, answering user questions, and improving documentation.

(the package appears to be some kind of config file for someone else's linter)

# ? Aug 24, 2019 23:13

Suspicious Dish: Sep 24, 2011; 2020 is the year of linux on the desktop, bro; Fun Shoe

lmao feross

# ? Aug 25, 2019 00:46

Suspicious Dish: Sep 24, 2011; 2020 is the year of linux on the desktop, bro; Fun Shoe

also lmao @ github putting a political compass on everyone's profile page

# ? Aug 25, 2019 00:49

ultrafilter: Aug 23, 2007; It's okay if you have any questions.

Is there anybody who does mostly PRs? I'm not even sure how that would work.

# ? Aug 25, 2019 01:10

Absurd Alhazred: Mar 27, 2010; by Athanatos

ultrafilter posted:

Is there anybody who does mostly PRs? I'm not even sure how that would work.

Erling?

# ? Aug 25, 2019 01:41

Pie Colony: Dec 8, 2006; I AM SUCH A FUCKUP THAT I CAN'T EVEN POST IN AN E/N THREAD I STARTED

edit: nvm, I thought PRs meant code reviews

# ? Aug 25, 2019 01:52

Plorkyeran: Mar 22, 2007; To Escape The Shackles Of The Old Forums, We Must Reject The Tribal Negativity He Endorsed

ultrafilter posted:

Is there anybody who does mostly PRs? I'm not even sure how that would work.

Some of the linux intermediary people who spend their time gathering changes from other people and pushing them to linus might be mostly PRs (although obviously they aren't doing it on github).

# ? Aug 25, 2019 03:49

Phobeste: Apr 9, 2006; never, like, count out Touchdown Tom, man

It's really perfect that as far as I can tell that package is a wrapper script and an eslint config file and like nothing else

# ? Aug 25, 2019 14:11

NtotheTC: Dec 31, 2007

Phobeste posted:

It's really perfect that as far as I can tell that package is a wrapper script and an eslint config file and like nothing else

It's far too heavyweight for JS. Strip the wrapper out into it's own NPM package. Bonus: double the ads!

# ? Aug 25, 2019 14:29

pokeyman: Nov 26, 2006; That elephant ate my entire platoon.

One comment on that issue went something like "I use this in all my js projects" and I couldn�t help but read it as an indictment.

# ? Aug 25, 2019 15:03

Doom Mathematic: Sep 2, 2008

Having a highly popular public canned configuration for ESLint is surprisingly valuable because it enables us to immediately terminate all kinds of tedious, expensive bikeshedding discussions about code style and formatting and many kinds of best practice. Every question about correct brace placement or tabs versus spaces or string quoting just goes away instantly and we can get on with actual work. Even in the cases where there are rules I personally disagree with (there are one or two), the value from just having consistent formatting and best practices across all of our repos is worth it.

That doesn't mean "Standard" is the last word in canned configurations for ESLint, it's a pretty obnoxious and fundamentally inaccurate name and there are others out there which are just as good.

# ? Aug 25, 2019 16:47

Sagacity: May 2, 2003; Hopefully my epitaph will be funnier than my custom title.

Is there a particular reason why eslint can't just provide some sane defaults?

# ? Aug 25, 2019 17:09

Steve French: Sep 8, 2003

Pie Colony posted:

edit: nvm, I thought PRs meant code reviews

But, yes:

# ? Aug 25, 2019 17:32

xtal: Jan 9, 2011; by Fluffdaddy

I don't like anything that makes it more obvious to my coworkers how little work I do

# ? Aug 25, 2019 18:28

Thermopyle: Jul 1, 2003; ...the stupid are cocksure while the intelligent are full of doubt. �Bertrand Russell

Doom Mathematic posted:

Having a highly popular public canned configuration for ESLint is surprisingly valuable because it enables us to immediately terminate all kinds of tedious, expensive bikeshedding discussions about code style and formatting and many kinds of best practice. Every question about correct brace placement or tabs versus spaces or string quoting just goes away instantly and we can get on with actual work. Even in the cases where there are rules I personally disagree with (there are one or two), the value from just having consistent formatting and best practices across all of our repos is worth it.

That doesn't mean "Standard" is the last word in canned configurations for ESLint, it's a pretty obnoxious and fundamentally inaccurate name and there are others out there which are just as good.

This is true, but right now we've moved the bikeshedding from configuration options to which configuration-free linter to use.

Thankfully, I think it seems like prettier is winning that war.

# ? Aug 25, 2019 20:45

boo_radley: Dec 30, 2005; Politeness costs nothing

xtal posted:

I don't like anything that makes it more obvious to my coworkers how little work I do

Oh, I don't there's anything that could make it more obvious.

# ? Aug 25, 2019 22:01

LOOK I AM A TURTLE: May 22, 2003; "I'm actually a tortoise."; Grimey Drawer

Suspicious Dish posted:

also lmao @ github putting a political compass on everyone's profile page

Issues = Libertarian
Code reviews = Authoritarian
Pull requests = Left
Commits = Right

Stalin sends you to the gulags if your pull requests don't pass CI. Hitler force pushes to master.

# ? Aug 26, 2019 12:48

Munkeymon: Aug 14, 2003; Motherfucker's got an
armor-piercing crowbar! Rigoddamndicu𝜆ous.

Volguus posted:

This proves you cannot ever please everyone. If there would just only be a way to allow multiple kinds of clients talk with the central server and between themselves. You know, to open the protocol and allow other people that prefer the black client/white client/pink client/compact client to just ... you know, use it and don't worry about it. And the protocol to be well designed that a client only implementing a part of it can still function perfectly fine. I guess the technology is simply not there yet.

What's proven to not be there time and again is the small army of people to implement good, useable clients, HTH.

# ? Aug 26, 2019 14:22

duz: Jul 11, 2005; Come on Ilhan, lets go bag us a shitpost

Sagacity posted:

Is there a particular reason why eslint can't just provide some sane defaults?

It does.

# ? Aug 26, 2019 16:45

Suspicious Dish: Sep 24, 2011; 2020 is the year of linux on the desktop, bro; Fun Shoe

reminder that feross is already a millioniare because yahoo bought his stupid company lol

it was a cdn where the user visiting the site also dn'd the c to other users visiting the site

only yahoo was dumb enough to fall for it

https://web.archive.org/web/20150810065820/https://peercdn.com/

# ? Aug 26, 2019 17:22

Thermopyle: Jul 1, 2003; ...the stupid are cocksure while the intelligent are full of doubt. �Bertrand Russell

dn'd the c

what?

# ? Aug 26, 2019 18:10

nielsm: Jun 1, 2009

deliverynetworked the content

# ? Aug 26, 2019 18:12

Suspicious Dish: Sep 24, 2011; 2020 is the year of linux on the desktop, bro; Fun Shoe

Thermopyle posted:

dn'd the c

what?

cdn's dn the c

# ? Aug 26, 2019 18:17

Dirty Frank: Jul 8, 2004

LOOK I AM A TURTLE posted:

Issues = Libertarian
Code reviews = Authoritarian
Pull requests = Left
Commits = Right

Stalin sends you to the gulags if your pull requests don't pass CI. Hitler force pushes to master.

i always knew stalin was a good guy

# ? Aug 26, 2019 18:30

No Safe Word: Feb 26, 2005

Suspicious Dish posted:

cdn's dn the c

they're an n to d the c

# ? Aug 26, 2019 18:40

pokeyman: Nov 26, 2006; That elephant ate my entire platoon.

I assumed the name peercdn was the result of "I�m making a cdn, I�ll call it *spins wheel of tech-ish words* peer. Peer cdn". I had no idea it was... that.

# ? Aug 26, 2019 23:39

Volmarias: Dec 31, 2002; EMAIL... THE INTERNET... SEARCH ENGINES...

BCDN

Blockchain Delivery Network

Investors: :homebrew:

# ? Aug 26, 2019 23:45

Absurd Alhazred: Mar 27, 2010; by Athanatos

I mean, peer-to-peer content distribution isn't that bad of an idea. It's like realtime bittorrent! :v:

# ? Aug 27, 2019 00:41

Suspicious Dish: Sep 24, 2011; 2020 is the year of linux on the desktop, bro; Fun Shoe

it should be of no surprise that feross's next gig was webtorrent, which implements torrent, in web

https://github.com/webtorrent/webtorrent

# ? Aug 27, 2019 04:44

Plorkyeran: Mar 22, 2007; To Escape The Shackles Of The Old Forums, We Must Reject The Tribal Negativity He Endorsed

Sagacity posted:

Is there a particular reason why eslint can't just provide some sane defaults?

eslint's defaults are arguably better than what Standard picks.

# ? Aug 27, 2019 07:36

moostaffa: Apr 2, 2008; People always ask me about Toad, It's fantastic. Let me tell you about Toad. I do very well with Toad. I love Toad. No one loves Toad more than me, BELIEVE ME. Toad loves me. I have the best Toad.

Absurd Alhazred posted:

I mean, peer-to-peer content distribution isn't that bad of an idea. It's like realtime bittorrent!

The Blizzard Battle.net App does this

# ? Aug 27, 2019 11:18

tankadillo: Aug 15, 2006

It�s always funny to me how Standard�s name is literally �Standard.�

Gonna publish my ESlint config with the name �Official ISO-420-69."

# ? Aug 27, 2019 13:52

Munkeymon: Aug 14, 2003; Motherfucker's got an
armor-piercing crowbar! Rigoddamndicu𝜆ous.

Suspicious Dish posted:

it should be of no surprise that feross's next gig was webtorrent, which implements torrent, in web

https://github.com/webtorrent/webtorrent

moostaffa posted:

The Blizzard Battle.net App does this

They moved away from bittorrent something like a decade ago.

# ? Aug 27, 2019 15:56

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