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Search - "callback-or-not-callback"
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TABLE BASED WEB DESIGN
I was surprised there were no rants about this topic before I realized it was more than a decade back 😳
We've never had it better! So to help add a little perspective for all those ranting about what is unarguably the golden age for web developers... let me fill you in on web dev in the late 90's;
JavaScript was a joke. No seriously! - I once got laughed out of the room for suggesting we try use it for more than disabling a button - (I wanted to check out the new XHR request thingy [read AJAX]).
HTML was simple and purely a markup language (with the exception of the marquee tag). The tags were basically just p,ul,ol,h*,form inputs,img and table and html took 10 minutes to learn. Any style was inline and equally crude - anything that wasn't crude could not be trusted and probably wouldn't render at all in most browsers (never mind render correctly).
There were rumors of a style TAG and something called a cascading style sheet which were received with much skepticism since it went against the old ways and any time saved would be lost writing multiple [IE version specific] style sheets for each browser just to get it to work - so we simply didn't.
No CSS meant the only tags you had to work with to create a structured layout were br, hr and table... so naturally EVERYTHING was in nested tables! JS callback hell can't touch this! - it was not uncommon to have 50+ nested tables all with inline style in a single page which would be edited without any dev tools or linting.
You would spend 30 minutes scanning td tags until your eyes bled to find something, make a change, ftp the file to the server, reload the web page and then spend 10 minutes staring at the devastation on your screen convinced you broke
the internet before spotting an un-closed td tag with your bloodshot eyes.
Tables were not just a silver bullet - they were the ONLY bullet and were in the wild west!
Q: Want an inline form or to align your inputs left?
A: Duh table!
Q: Want a border with round-corners, a shadow or blur?
A: That's easy! Your gonna want to put that table in the center cell of another table then crop a image of the border into 6 smaller images to put in the surrounding cells... oh and then spend 10 minutes fucking with mystical attributes like cell-padding and valign to get them flush.
...But hey at least on the bright-side vertically & horizontally centering stuff was a breeze!23 -
We're using a ticket system at work that a local company wrote specifically for IT-support companies. It's missing so many (to us) essential features that they flat out ignored the feature requests for. I started dissecting their front-end code to find ways to get the site to do what we want and find a lot of ugly code.
Stuff like if(!confirm("blablabla") == false) and whole JavaScript libraries just to perform one task in one page that are loaded on every page you visit, complaining in the js console that they are loaded in the wrong order. It also uses a websocket on a completely arbitrary port making it impossible to work with it if you are on a restricted wifi. They flat out lie about their customers not wanting an offline app even though their communications platform on which they got asked this question once again got swarmed with big customers disagreeing as the mobile perofrmance and design of the mobile webpage is just atrocious.
So i dig farther and farthee adding all the features we want into a userscript with a beat little 'custom namespace' i make pretty good progress until i find a site that does asynchronous loading of its subpages all of a sudden. They never do that anywhere else. Injecting code into the overcomolicated jQuery mess that they call code is impossible to me, so i track changes via a mutationObserver (awesome stuff for userscripts, never heard of it before) and get that running too.
The userscript got such a volume of functions in such a short time that my boss even used it to demonstrate to them what we want and asked them why they couldn't do it in a reasonable timeframe.
All in all I'm pretty proud if the script, but i hate that software companies that write such a mess of code in different coding styles all over the place even get a foot into the door.
And that's just the code part: They very veeeery often just break stuff in updates that then require multiple hotfixes throughout the day after we complain about it. These errors even go so far to break functionality completely or just throw 500s in our face. It really gives you the impression that they are not testing that thing at all.
And the worst: They actively encourage their trainees to write as much code as possible to get paid more than their contract says, so of course they just break stuff all the time to write as much as possible.
Where did i get that information you ask? They state it on ther fucking career page!
We also have reverse proxy in front of that page that manages the HTTPS encryption and Let's Encrypt renewal. Guess what: They internally check if the certificate on the machine is valid and the system refuses to work if it isn't. How do you upload a certificate to the system you asked? You don't! You have to mail it to them for them to SSH into the system and install it manually. When will that be possible you ask? SOON™.
At least after a while i got them to just disable the 'feature'.
While we are at 'features' (sorry for the bad structure): They have this genius 'smart redirect' feature that is supposed to throw you right back where you were once you're done editing something. Brilliant idea, how do they do it? Using a callback libk like everyone else? Noooo. A serverside database entry that only gets correctly updated half of the time. So while multitasking in multiple tabs because the performance of that thing almost forces you to makes it a whole lot worse you are not protected from it if you don't. Example: you did work on ticket A and save that. You get redirected to ticket B you worked on this morning even though its fucking 5 o' clock in the evening. So of course you get confused over wherever you selected the right ticket to begin with. So you have to check that almost everytime.
Alright, rant over.
Let's see if i beed to make another one after their big 'all feature requests on hold, UI redesign, everything will be fixed and much better'-update.5 -
Laravel is the worst framework ever.
Everything has to be made convenient and easy. That sounds amazing, because developers want to save time, worry less about boilerplate code, right? No more constructors, no more dependency injection, fuck all the tedious OOP shit... RIGHT?
It does one thing well: Make PHP syntax uniform and concise through easily integrated libraries such as Collection and Carbon. But those are actually not really part of the framework... just commonly integrated and associated with Laravel.
The framework itself is completely derailed: You can define code in a callback in the routes file. You can define a controller in the routes file. You can define middleware as a parameter to the route, as a fluent method to the route, you can stack them up in a service provider. Validators can be made in controllers, Request objects, service providers, etc. You can send mail inline, through Mailable objects, through Notification objects, etc.
Everything is macroable, injectable, and definable in a million different places. Ultimate freedom!
Guess what happens when you give 50 developers of various seniority a swiss army knife?
One hammers in a screw with a nail file, the other clips the head from the screw using scissors, and you end up with an unworkable mess and blunt tools.
And don't get me started about Eloquent, the Active Record ORM. It's cute for the simple blog/article/author/comment queries, but starts choking when you want more selective and performant queries or more complex aggregates, and provides such an opaque apple-esque interface which lets people think everything is OK, when in reality it's forcing the SQL server to slowly commit suicide.50 -
God damn fucking shit.
Now I know again why I don't do apps.
This is a app as simple as can be:
Enter a link, click a button, do a http request, download a file.
BUT FUCKING HELL WHY ARE YOU SO FUCKING RETARDED ANDROID?!
I'm not familiar with java but i don't care why is this so freaking unintiutiv to get shit done? Why are there thousands of ways and none works or atleast at a easy way? Make an object for this, make an object for that...
THIS IS RETARDED.
In PHP a simple "file_get_contents" would do the job. I were even down for some curl shenanigans if it were an easy implementation. BUT GOD DAMN.
URL url = new URL("http://fuckinghardcoded.com")
Oh no can't compile because that MIGHT be an invalid URL. Ok try catch this or just tell the rest of the Programm to watch out for this bad boy cause he might throw a MalformedURLException.
Ditch that and try volley. Everything is document except how to fire that queue! Does it do that by itself? Do I really have to do an override to a function while declaring? CMON ON I'M A WEBDEV IS THIS TRYING TO DO A FUCKING CALLBACK AND IS THIS TRYING TO BE AN ANONYMOUS FUNCTION??? Why is this so frustrating and confusing? I'm also mad at myself this is dropdead simple shit but I can't get it to work. Fuck this, fuck java , fuck android and fuck myself10 -
ajax hell/dom hell
do you know it? no dont talk abut the callback hell.
i fcking hate it when i load any modern site, and it needs a few seconds to calc some stuff, xhr this, calc that, dom/css visible that. at all it takes more time specially if you on low end to mid equipmemt.
And then you think its finally loaded, you want to click or tab something and then another xhr was Finished, dom/css changed, and the button i was about to Click moved and i click something else.
friends of me hates this to.
so please dear webdevs, stop try to be cool and fancy just because you found out how "cool" conditions in css and dom is. stop using that bullshit angular (and so on) bullshit if you cant manage to pull out a html at start that will not changr its layout all the time after being loaded, ty.9 -
PHP arrays.
The built-in array is also an hashmap. Actually, it's always a hashmap, but you can append to it without specifying indexes and PHP will use consecutive integers. Its performance characteristics? Who knows. Oh, and only strings, ints and null are valid keys.
What's the iteration order for arrays if you use them as hashmaps (string keys)? Well, they have their internal order. So it's actually an ordered hashmap that's being called an array. And you can produce an array which has only integer keys starting with 0, but with non-sequential internal (iteration) order.
This array weirdness has some non-trivial implications. `json_encode` (serializes argument to JSON) assumes an array corresponds to a JSON array if its keys are consecutive integers in increasing order starting with 0, otherwise the array becomes a JSON object. `array_filter` (filters arrays/hashmaps using callback predicate) preserves keys, so it will punch holes in the int key sequence if non-last items are removed, thus turning arrays into hashmaps and changing your JSON structure if you forget to discard keys before serialization.
You may wonder how JSON deserialization works, then? There's a special class for deserialized JSON objects, `stdClass`. It's basically a hashmap too, but it's an object, not an array, and all functions that would normally accept arrays won't work with it. So basically its only use is JSON (de)serialization. You can even cast arrays to objects, producing `stdClass`.
Bonus PHP trivia:
Many functions return nonsensical values. `preg_match`, the regex matching function, returns 1 for success, 0 for no matches and false for malformed regular expression. PHP supports exceptions, so it could just throw one on errors. It would even make more sense to return true, false and null for these three cases. But no, 1, 0 and false. And actual matches are returned by output arg.
`array_walk_recursive`, a function supposed to recursively apply callback to each element of an array. That's what docs say. It actually applies it to leafs only. It will also silently accept object instead of array and "walk" it, but without recursing into deeper objects.
Runtime type enforcing is supported for function arguments and returned values. You can use scalar types, classes, array, null and a few special keywords. There's also a `mixed` keyword, which is used in docs and means "anything". It's syntactically valid, the parser will accept it, but it matches no values in runtime. Calling such function will always cause a runtime error.
Strings can be indexed with negative integers. Arrays can't.
ReflectionClass::newInstanceWithoutConstructor: "Creates a new class instance without invoking the constructor". This one needs no commentary.
`array_map` is pretty self-explanatory if you call it with a callback and an array. Or if you provide more arrays of equal length via varargs, callback will be called with more arguments, one from each array. Makes sense so far. Now, you can also call `array_map` with null instead of callback. In that case it treats provided arrays as rows of a matrix and returns that matrix, transposed.5 -
Last week's Android development time breakdown:
21.9% Managing state
17.7% Referring to lifecycle diagrams
15.1% Waiting for Gradle
8.5% Reading the official docs on how to use component x
8.4% Reordering auto-generated ConstraintLayout XML
7.5% Swearing
4.2% Googling “Stack overflow component x is deprecated”
3.9% Googling “Stack overflow implement component x on API 24 or lower”
3.7% Googling “Stack overflow implement component x on API 21 or lower”
3.2% Googling “Stack overflow implement component x on API 19 or lower”
2.9% Googling “Stack overflow callback y called twice”, realising its a feature and not a bug, swearing a lot
2.0% Checking if Flutter is mature yet
1.0% Implementing business logic4 -
can we all take a moment to appreciate the developers of flutter. they're smart, and they took the time to make flutter the *right* way.
they used an easy to learn language that's ideal for mobile development, which means hot reload/restart is possible (because dart supports aot and jit compilation)
the way it's designed is beautiful. everything is a widget, and it's easy to customize them via named parameters.
the community is great. it's not large, but it's supportive, with two active subreddits. yesterday i asked a question on r/flutterdev, and a member of the flutter team at google answered the question with a comprehensive answer.
flutter is very consistent across platforms. if it works on android or ios, you can bet it'll work on the other just as well, with the exception of platform-specific code.
it is VERY performant. unless you write a major bottleneck, 60fps is easy to achieve.
animations are EASY. define a tween and animation controller and then write a callback function. not to mention it's straightforward, and complex/combined animations are easy, too.
you can get almost direct access to the canvas, should you need it, with custompainter.
oh my god, this is revolutionary in the programming world. development is quicker than it is with native android alone, and for people who have no access to a mac, like me, i can develop for ios and compile via code magic. if you haven't checked it out and you develop for mobile, check it out.
oh yeah, did i mention it's not just mobile. hummingbird - flutter compiled to web - is already in experimental public betas, and will likely be released by the end of the year. there's also experimental desktop support, which is amazing, and much better than electron. not to mention flutter is the future, as it will be the primary way to make apps on fuchsia os.13 -
A (work-)project i spent a year on will finally be released soon. That's the perfect opportunity to vent out all the rage i built up during dealing with what is the javascript version of a zodiac letter.
Everything went wrong with the beginning. 3 people were assigned to rewrite an old flash-application. Me, A and B. B suggested a javascript framework, even though me and A never worked with more than jquery. In the end we chose react/redux with rest on the server, a classic.
After some time i got the hang of time, around that time B left and a new guy, C, was hired soon after that. He didn't know about react/redux either. The perfect start off to a burning pile of smelly code.
Today this burning pile turned into a wasteland of code quality, a house of cards with a storm approaching, a rocket with leaks ready to launch, you get the idea.
We got 2 dozen files with 200-500 loc, each in the same directory and each with the same 2 word prefix which makes finding the right one a nightmare on its on. We have an i18n-library used only for ~10 textfields, copy-pasted code you never know if it's used or not, fetch-calls with no error-handling, and many other code smells that turn this fire into a garbage fire. An eternal fire. 3 months ago i reduced the linter-warnings on this project to 1, now i can't keep count anymore.
We use the reactabular-module which gives us headaches because IT DOESN'T DO WHAT IT'S SUPPOSED TO DO AND WE CANT USE IT WELL EITHER. All because the client cant be bothered to have the table header scroll along with the body. We have methods which do two things because passing another callback somehow crashed in the browser. And the only thing about indentation is that it exists. Copy pasting from websites, other files and indentation wars give the files the unique look that make you wonder if some of the devs hides his whitespace code in the files.
All of this is the result of missing time, results over quality and the worst approach of all, used by A: if A wants an ui-component similar to an existing one, he copies the original and edits he copy until it does what he wants. A knows about classes, modules, components, etc. Still, he can't bring himself to spend his time on creating superclasses... his approach gives results much faster
Things got worse when A tried redux, luckily A prefers the components local state. WHICH IS ANOTHER PROBLEM. He doesn't understand redux and loads all of the data directly from the server and puts it into the local state. The point of redux is that you don't have to do this. But there are only 1 or 2 examples of how this practice hurt us yet, so i'm gonna have to let this slide. IF HE AT LEAST WOULD UPDATE THE DATA PROPERLY. Changes are just sent to the server and then all of the data is re-fetched. I programmed the rest-endpoints to return the updated objects for a very reason. But no, fuck me.
I've heard A decided (A is the teamleader) to use less redux on the next project and use a dedicated rest-endpoints for every little comoutation you COULD DO WITH REDUX INSTEAD. My will is broken and just don't want to work with this anymore.
There are still various subpages that cant f5 because the components cant handle an empty redux state in the beginning, but to be honest i don't care anymore. Lets hope the client will never find out, along with the "on error nothing happens"-bugs. The product should've been shipped last week, but thanks to mandatory bugfixes the release was postponed to next week. Then the next project starts...
Please give me some tips to keep up code quality over time, i cant take this once more.
I'm also aware that i could've done more, talking A and C about code style, prettifying the code, etc. Etc. But i was busy putting out my out fires, i couldn't kill much of the other fires which in the end became a burning building (a perfect metaphor for this software)4 -
Generator functions should be treated like sorting algorithms: Not worth your time if all you have is 4 or less async instructions.
Callback hell is actually kind of nice and warm when you're a just a few levels down. If you're really confused by your obfuscated code, you suck at node. -
Oh god why... Why is it that every time I work with software defined radios, I keep on having to rely on not just incomplete, but at times misleading documentation 😩
Last time was GNU radio, with the doc telling me that I could define an input for a processing block using either a type or a (type, size) tupple, only for the actual code to scream at me in confusion upon my passing a tupple.
Now is that other SDR's SDK, which, as if being built upon eclipse wasn't bad enough, managed to make its serial communications confusing. Why can't you just let me set a callback to rx interrupts, you daft punks...1 -
Hello guys..i dont know why i am posting it here...but i am really depressed..i am a fresher mern stack developer...i am applying everywhere but i am not getting any callback from any HRs..i am thinking of either running away or killing myself....i dont know what to do...my wife earns just 9500 rupees from her call center job and we both have to give 5000 every month to my mom for household expenses....it has become vert difficult for me and my wife to save money...i dont know what to do....28
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I've almost had enough of Atlassian. So, our customers want us to integrate Jira / Confluence support into our software.
I initially thought it would be a great addition to the other providers we support, so I explored it further.
After trying Confluence – and already knowing first-hand how horrendous Jira is from a previous role – I left in absolute disgust at not only how horrendously slow, buggy and overengineered Confluence is (just like Jira), but how horrendously FUCKING SHIT their developer / API documentation is. I suspended the project at this point. No fucking way was I allowing time to be sucked away because another company can't get their shit together.
Customers kept asking for integration support, so I authorized the team to revisit Jira integration support a few weeks ago. Nothing has changed. Documentation is as shit as before, software as slow as before and the platform as overengineered as before. No surprises.
Here's the problem:
1. You can't set multiple auth callback URLs so you can actually test your implementation.
2. You can't revoke access tokens programmatically. Yes, really.
3. You need to submit a ticket to get your integration approved for use by others, because automating this process is clearly fucking impossible. And then they ask questions you've already answered before. They don't review your app or your integration beyond the information you provided in the ticket.
4. Navigating the Atlassian developer documentation is like trying to navigate through a never-ending fucking minefield. Go on, try it: https://developer.atlassian.com/clo.... Don't get too lost.
I was so very FUCKING CLOSE to terminating this integration project permanently.
Atlassian, your software is an absolute fucking joke. I have no idea why our customers use your platform. It's clearly a sign of decades of lazy and incompetent engineering at work, trying to do too much and losing yourself in the process.
You can't even get the fundamental shit right. It's not hard to write clean, maintainable code and simple, clear and concise API documentation.1 -
ScalaJs React compiles Scala to React.js.
There's some cool typing involved but I haven't done web front-end since nested tables were meta, so there's lots to learn.
There's exactly one senior dev at my company who is fluent in this ScalaReact, so I tag him in the PR for my project. Every day at 10:00 am, slack publicly posts a reminder with @mention that he hasn't reviewed my PR.
Three days later I haven't heard anything so I send a DM over slack asking for feedback... No response.
Four days after the PR I beg for 10 minutes of pairing time, because something in my component hierarchy smells funny. He doesn't have time for me until 5:00 .
I've now built almost a weeks worth of work on the original PR and the feedback I get is 'this works, is performant, and has no obvious bugs, but you can't merge it until you restructure the underlying component hierarchy'
It takes me and another senior dev an entire day of pairing to implement the changes without breaking anything. But, I asked for the feedback because I wanted to learn and write good clean code so I'm irritated but willing to move on.
Yesterday I posted in slack that I was having a hard time following my callback chains to find where the color was assigned to a <td (because I had to add a coloring rule). I wanted to know if I could change the type signature of a component from Tagmod (one or more HTML tags) to VdomTagOf[TableCell] so that it would be clear where the color was assigned.
Instead of just telling me 'no' and giving some context, the react dev gives me:
"Why would a dev need to know about the type unless they’re actually trying to use the thing ? Those are all great questions, but id suggest trying not to prematurely optimize for those until they actually come up"
I flipped my shit. After you couldn't make time for me for a WEEK I had to justify to the CEO why I was spending a day on PURE refactors to accommodate your PREFERENCES. Meanwhile when I'm being VULNERABLE and exposing that I am confused and struggling to complete my task you DISMISS my concerns and attack my motivations.
Unfortunately, this is all happening in the public slack channels and I start defending readability and my premise while triggered. Now I'm riding the shame train for fighting in public slack and trying to pretend none of this ever happened.1 -
Bloody fucking Android! Updates, updates and more updates! My development Nexus 5X won't allow me to sideload apps since it updated... Hello, printf debugging! Goodbye, profiler and debugger!
My hate for Android grows with each version after 4.0.$something... 2 was shit, I missed 3, 4 was OK, and since then it's going steeply down.
And don't get me started on Material Design...! Good luck figuring out what's a button and what's a label...
And what's up with the "let's keep all apps running all the time to save a few ms on start" philosophy!? Who thought that is a good idea!? Yeah, System.exit(0) works, but... Is it so hard to determine when it's not needed anymore (has no services running etc.)? Why should a web browser (for example) stay in memory after I quit? Minimize is a thing (Home button), why make it so confusing?
Another thing - feedback-less async tasks - why? I like to know when it is working in the background... How the hell am I supposed to find out if it is supposed to do this or if it is frozen?
And Android deciding to kill your process whenever it pleases without any callback... Happened to me once with an Activity in the foreground (no exceptions anywhere in my app, it just quit). How do you do IO properly? It seems you can't guarantee some file or socket or something that must be closed doesn't stay open (requiring to restart Bluetooth 'cause the socket wasn't closed, for example)...4 -
Help, again! I’m doing a simple ajax using jquery’s load function but for some reason it results in a refresh of the entire page! There’s no callback or any other values being passed, it’s just the url to the html file. Btw even if i reduce the html file I’m sucking in to an innocent <p>hello</p>, it still fucks up and the page reloads so it’s not like there’s some bad javascipt going off. This is part of a project being done using codesandbox, so I’m not sure if there’s something going on with it. This is my first ajax in this environment8
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So tokio-rs had me really confused on how to properly use split streams and sinks to read and write io, so I made a simplified interface to save others (and myself) some trouble.
Check it out, it's called tokio-simplified, and it's on https://crates.io/crates/...
I like it, you can place as many callbacks as you want to respond to each frame from the stream, and use as many mpsc::senders as you like to write to the sink.
And as a bonus, you can have a filter callback called before any other, to choose whether or not a frame should make it to the others, and bonus feature: that callback is 0 cost against just passing it as a for_each on your stream.
Hope it helps some of you on your journeys to Rust -
So our app uses some service to validate users & the validation response is received either by a callback url or by polling. Since their documentation states callbacks are rather unstable and "should not be completely relied upon", we only use polling. Client, however, wants to use the callback url and use polling only "after we are sure that callback has not been received". WTF. When we asked how will we know callback has not been received because it has not been received, we were told to start polling after like 1 hour.
?!?!?!?!?!?! -
Multer is shit.
Do you know how to validate file size + mime type of the file before saving it to the disk?
Here is an instruction:
1. In one place you provide a it a fileFilter function that will validate the mime type, but this function can not validate file size or send user response.
2. In second place provide it a config limits file, that will validate file size, but can not validate mime type
3. In third place you provide middleware to capture any errors caused by previous 2 places and send response back to the user.
4. Go google for what is cb in multer because their shit documentation says nothing about it
Such simple thing as request->validation->response is split into 3 different parts, each of different type: callback, config file and middleware.
Why do so much people use this shit written by a braindead retarded morons?3 -
```
Error: Resolution method is overspecified. Specify a callback *or* return a Promise; not both.
```
(ノ≧∇≦)ノ ミ ┸┸)`ν゚)・;’.