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I know I should not be naming names but WalmartLabs Hackfest 2016 was actually a fuckfest. It was supposed to be a 14 day online hackathon followed by an offline event for top teams. I got in top 6 among the 4350 participants.
In the offline event:
1. They didn't allow us to give live demo of the project. Instead they asked us to present a ppt. The HR idiot even asked me to take screenshots of my cli app and put that in instead.
2. 4 out of the 6 teams actually presented their startup products. It was supposed to be a 14 day hackathon for fucks sake. How can you present some shit that you were working on for the last 1.5 years! This one team literally had "Copyright 2015" mentioned on their product page. This another team had 100,000+ downloads on his app already. Of course Walmart didn't care about it. They didn't listen to my complaint. I wish I had created a scene there :( Another team was boasting on stage about how they got selected in the FB startup accelerator and how they won 3 more hackathon (evidently equally shit) using their shit. This was met with praises from the judges.
3. The results were declared after 3 fucking months! Don't organize this shit next time if you don't have any interest, bitch.
4. The code was supposedly never checked. Other teams kept working on their shit for the 3 months in between. In the live presentation, this guy even had photoshopped a feature which wasn't even present there (and he boasted about it later on).
5. Hackerearth (platform for the hackathon) was equally incompetent in this mishap of a hackathon. One of the teams which won had one the previous hackathon (Pluralsight hackathon) as well on Hackerearth using the same fucking product. What pieces of shit >.<
6. The hackathon was supposed to be tech based and all the categories were like that. Instead the teams presented business models and shit like that and judges focused more on that. They were not concerned about the technical aspects at all. The more noise you made, the more lies you told, the better chance you had to win it.
7. They were supposed to give prizes in 4 categories but silently reduced it to 3 on the event day. They still publicised it as 4 prizes until now.
All of the above is true and I am willing to testify if someone asks for it. I am going to write a nice blog post about it and post it to their idiot HR.
Hackathon: WalmartLabs Hackfest 2016
Team name: psyduck (which is just me)
Sorry for being too salty but it was indeed a fuckfest.15 -
--- HTTP/3 is coming! And it won't use TCP! ---
A recent announcement reveals that HTTP - the protocol used by browsers to communicate with web servers - will get a major change in version 3!
Before, the HTTP protocols (version 1.0, 1.1 and 2.2) were all layered on top of TCP (Transmission Control Protocol).
TCP provides reliable, ordered, and error-checked delivery of data over an IP network.
It can handle hardware failures, timeouts, etc. and makes sure the data is received in the order it was transmitted in.
Also you can easily detect if any corruption during transmission has occurred.
All these features are necessary for a protocol such as HTTP, but TCP wasn't originally designed for HTTP!
It's a "one-size-fits-all" solution, suitable for *any* application that needs this kind of reliability.
TCP does a lot of round trips between the client and the server to make sure everybody receives their data. Especially if you're using SSL. This results in a high network latency.
So if we had a protocol which is basically designed for HTTP, it could help a lot at fixing all these problems.
This is the idea behind "QUIC", an experimental network protocol, originally created by Google, using UDP.
Now we all know how unreliable UDP is: You don't know if the data you sent was received nor does the receiver know if there is anything missing. Also, data is unordered, so if anything takes longer to send, it will most likely mix up with the other pieces of data. The only good part of UDP is its simplicity.
So why use this crappy thing for such an important protocol as HTTP?
Well, QUIC fixes all these problems UDP has, and provides the reliability of TCP but without introducing lots of round trips and a high latency! (How cool is that?)
The Internet Engineering Task Force (IETF) has been working (or is still working) on a standardized version of QUIC, although it's very different from Google's original proposal.
The IETF also wants to create a version of HTTP that uses QUIC, previously referred to as HTTP-over-QUIC. HTTP-over-QUIC isn't, however, HTTP/2 over QUIC.
It's a new, updated version of HTTP built for QUIC.
Now, the chairman of both the HTTP working group and the QUIC working group for IETF, Mark Nottingham, wanted to rename HTTP-over-QUIC to HTTP/3, and it seems like his proposal got accepted!
So version 3 of HTTP will have QUIC as an essential, integral feature, and we can expect that it no longer uses TCP as its network protocol.
We will see how it turns out in the end, but I'm sure we will have to wait a couple more years for HTTP/3, when it has been thoroughly tested and integrated.
Thank you for reading!27 -
Recipe for a Great Programmer:
Ingredients:
-Books for a computer science curriculum from a top university
-Computer
-Headphones
-Internet
-Stress ball
-Pillow
-Lighter fluid
-Food
Directions:
1. Cover computer science books with lighter fluid
2. Light books on fire
3. Use flames to cook an energy-rich meal for the thousands of hours ahead
4. Pick an IDE
5. Choose a project beyond current capabilities. Good ways to push boundaries:
- Unfamiliar domain (e.g. large scale data processing, UI programming, high performance computing, games)
- Exotic programming language
- Larger in scope than any project before
6. Shut up about your IDE
7. Attempt to build
8. Stop procrastinating on Hacker News
9. Re-attempt to build
10. Squeeze stress ball and scream into pillow as necessary to keep sanity
When stuck:
- Paste stack traces into Google
- Find appropriate mailing list to get guidance
- Realize that real learning happens when you are stuck, uncomfortable, and/or frustrated
- Seek out books, classes, or other resources AFTER you have a good understanding of your deficiencies
11. Repeat #4 to #10 for at least 10 years
12. Results guaranteed! (to the same extent static types guarantee bug-free programs)
source: nathanmarz.com4 -
I tried DuckDuckGo like two years ago and my opinion was “meh, I don’t like the results”.
Yesterday @Root made it clear that the sole amount of data collected changes the whole perspective of tracking.
I went to shower thinking about that and as I was standing there enjoying warm water...
It hit me.
I liked google results and disliked DDG not because DDG was worse.
I liked google results because they were CRAFTED for ME to LIKE them. They exploited my confirmation bias, the strongest of all biases.
I took my other phone which is android, has a different sim that isn’t tied to my identity (don’t ask, this is Russia), was never connected to my WiFi and of course has no google account tied to it.
I tried googling stuff.
The results was just like what DDG gets you, the only difference was google amp were on top.
The fuck. One of the wokest moments ever.106 -
Newspaper: This CEO is one of the top entrepreneurs in the country, a true tech visionary shaping the future.
--- 3 months previous ---
Lead dev: O2 have said they are will pre-install the app on all their Androids but they need documentation from us.
CEO: documentation? on what?
Lead dev: Our unit test coverage, bugs found / fixed, security scan results, performance assessment, if and where its storing any data etc.
CEO: Ah were not doing any of that crap, bloody unit tests, its not necessary, tell them no.
lead dev: ..... eh ok
O2: *approved*
... true visionary, well done to everyone involved.3 -
Stack Overflow: Search on Google before asking questions
Google: *Shows stack overflow in top results*3 -
We had a mega rude, pompous asshat client come in who's company was SO disliked that someone made a hate site about them that was out ranking the client's actual site. They hired us to re-do their site and SEO to try to get back to the top results. We redid the site but we didn't improve the SEO. We also visited the hate site so many times we probably improved their ranking. 😂🖕🏻5
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3 rants for the price of 1, isn't that a great deal!
1. HP, you braindead fucking morons!!!
So recently I disassembled this HP laptop of mine to unfuck it at the hardware level. Some issues with the hinge that I had to solve. So I had to disassemble not only the bottom of the laptop but also the display panel itself. Turns out that HP - being the certified enganeers they are - made the following fuckups, with probably many more that I didn't even notice yet.
- They used fucking glue to ensure that the bottom of the display frame stays connected to the panel. Cheap solution to what should've been "MAKE A FUCKING DECENT FRAME?!" but a royal pain in the ass to disassemble. Luckily I was careful and didn't damage the panel, but the chance of that happening was most certainly nonzero.
- They connected the ribbon cables for the keyboard in such a way that you have to reach all the way into the spacing between the keyboard and the motherboard to connect the bloody things. And some extra spacing on the ribbon cables to enable servicing with some room for actually connecting the bloody things easily.. as Carlos Mantos would say it - M-m-M, nonoNO!!!
- Oh and let's not forget an old flaw that I noticed ages ago in this turd. The CPU goes straight to 70°C during boot-up but turning on the fan.. again, M-m-M, nonoNO!!! Let's just get the bloody thing to overheat, freeze completely and force the user to power cycle the machine, right? That's gonna be a great way to make them satisfied, RIGHT?! NO MOTHERFUCKERS, AND I WILL DISCONNECT THE DATA LINES OF THIS FUCKING THING TO MAKE IT SPIN ALL THE TIME, AS IT SHOULD!!! Certified fucking braindead abominations of engineers!!!
Oh and not only that, this laptop is outperformed by a Raspberry Pi 3B in performance, thermals, price and product quality.. A FUCKING SINGLE BOARD COMPUTER!!! Isn't that a great joke. Someone here mentioned earlier that HP and Acer seem to have been competing for a long time to make the shittiest products possible, and boy they fucking do. If there's anything that makes both of those shitcompanies remarkable, that'd be it.
2. If I want to conduct a pentest, I don't want to have to relearn the bloody tool!
Recently I did a Burp Suite test to see how the devRant web app logs in, but due to my Burp Suite being the community edition, I couldn't save it. Fucking amazing, thanks PortSwigger! And I couldn't recreate the results anymore due to what I think is a change in the web app. But I'll get back to that later.
So I fired up bettercap (which works at lower network layers and can conduct ARP poisoning and DNS cache poisoning) with the intent to ARP poison my phone and get the results straight from the devRant Android app. I haven't used this tool since around 2017 due to the fact that I kinda lost interest in offensive security. When I fired it up again a few days ago in my PTbox (which is a VM somewhere else on the network) and today again in my newly recovered HP laptop, I noticed that both hosts now have an updated version of bettercap, in which the options completely changed. It's now got different command-line switches and some interactive mode. Needless to say, I have no idea how to use this bloody thing anymore and don't feel like learning it all over again for a single test. Maybe this is why users often dislike changes to the UI, and why some sysadmins refrain from updating their servers? When you have users of any kind, you should at all times honor their installations, give them time to change their individual configurations - tell them that they should! - in other words give them a grace time, and allow for backwards compatibility for as long as feasible.
3. devRant web app!!
As mentioned earlier I tried to scrape the web app's login flow with Burp Suite but every time that I try to log in with its proxy enabled, it doesn't open the login form but instead just makes a GET request to /feed/top/month?login=1 without ever allowing me to actually log in. This happens in both Chromium and Firefox, in Windows and Arch Linux. Clearly this is a change to the web app, and a very undesirable one. Especially considering that the login flow for the API isn't documented anywhere as far as I know.
So, can this update to the web app be rolled back, merged back to an older version of that login flow or can I at least know how I'm supposed to log in to this API in order to be able to start developing my own client?6 -
I wish people would stop claiming their product is an AI when it isn’t.
Guy on product hunt today says his name generator is an AI. This is how he describes the process:
- first it passes your input keywords through fasttext
- we get a random sampling of the top 100 or so words most related to your input keywords
- the top words are used as the dictionary input to a markov chain word generator, which generates 10~15000 random words
- the results are passed again through fasttext, we take the cosine distance of the resulting word to your input keywords (by using the out-of-vocab feature of fasttext)
- the top 100 most relevant results are returned6 -
Okay, story time.
Back during 2016, I decided to do a little experiment to test the viability of multithreading in a JavaScript server stack, and I'm not talking about the Node.js way of queuing I/O on background threads, or about WebWorkers that box and convert your arguments to JSON and back during a simple call across two JS contexts.
I'm talking about JavaScript code running concurrently on all cores. I'm talking about replacing the god-awful single-threaded event loop of ECMAScript – the biggest bottleneck in software history – with an honest-to-god, lock-free thread-pool scheduler that executes JS code in parallel, on all cores.
I'm talking about concurrent access to shared mutable state – a big, rightfully-hated mess when done badly – in JavaScript.
This rant is about the many mistakes I made at the time, specifically the biggest – but not the first – of which: publishing some preliminary results very early on.
Every time I showed my work to a JavaScript developer, I'd get negative feedback. Like, unjustified hatred and immediate denial, or outright rejection of the entire concept. Some were even adamantly trying to discourage me from this project.
So I posted a sarcastic question to the Software Engineering Stack Exchange, which was originally worded differently to reflect my frustration, but was later edited by mods to be more serious.
You can see the responses for yourself here: https://goo.gl/poHKpK
Most of the serious answers were along the lines of "multithreading is hard". The top voted response started with this statement: "1) Multithreading is extremely hard, and unfortunately the way you've presented this idea so far implies you're severely underestimating how hard it is."
While I'll admit that my presentation was initially lacking, I later made an entire page to explain the synchronisation mechanism in place, and you can read more about it here, if you're interested:
http://nexusjs.com/architecture/
But what really shocked me was that I had never understood the mindset that all the naysayers adopted until I read that response.
Because the bottom-line of that entire response is an argument: an argument against change.
The average JavaScript developer doesn't want a multithreaded server platform for JavaScript because it means a change of the status quo.
And this is exactly why I started this project. I wanted a highly performant JavaScript platform for servers that's more suitable for real-time applications like transcoding, video streaming, and machine learning.
Nexus does not and will not hold your hand. It will not repeat Node's mistakes and give you nice ways to shoot yourself in the foot later, like `process.on('uncaughtException', ...)` for a catch-all global error handling solution.
No, an uncaught exception will be dealt with like any other self-respecting language: by not ignoring the problem and pretending it doesn't exist. If you write bad code, your program will crash, and you can't rectify a bug in your code by ignoring its presence entirely and using duct tape to scrape something together.
Back on the topic of multithreading, though. Multithreading is known to be hard, that's true. But how do you deal with a difficult solution? You simplify it and break it down, not just disregard it completely; because multithreading has its great advantages, too.
Like, how about we talk performance?
How about distributed algorithms that don't waste 40% of their computing power on agent communication and pointless overhead (like the serialisation/deserialisation of messages across the execution boundary for every single call)?
How about vertical scaling without forking the entire address space (and thus multiplying your application's memory consumption by the number of cores you wish to use)?
How about utilising logical CPUs to the fullest extent, and allowing them to execute JavaScript? Something that isn't even possible with the current model implemented by Node?
Some will say that the performance gains aren't worth the risk. That the possibility of race conditions and deadlocks aren't worth it.
That's the point of cooperative multithreading. It is a way to smartly work around these issues.
If you use promises, they will execute in parallel, to the best of the scheduler's abilities, and if you chain them then they will run consecutively as planned according to their dependency graph.
If your code doesn't access global variables or shared closure variables, or your promises only deal with their provided inputs without side-effects, then no contention will *ever* occur.
If you only read and never modify globals, no contention will ever occur.
Are you seeing the same trend I'm seeing?
Good JavaScript programming practices miraculously coincide with the best practices of thread-safety.
When someone says we shouldn't use multithreading because it's hard, do you know what I like to say to that?
"To multithread, you need a pair."18 -
I've optimised so many things in my time I can't remember most of them.
Most recently, something had to be the equivalent off `"literal" LIKE column` with a million rows to compare. It would take around a second average each literal to lookup for a service that needs to be high load and low latency. This isn't an easy case to optimise, many people would consider it impossible.
It took my a couple of hours to reverse engineer the data and implement a few hundred line implementation that would look it up in 1ms average with the worst possible case being very rare and not too distant from this.
In another case there was a lookup of arbitrary time spans that most people would not bother to cache because the input parameters are too short lived and variable to make a difference. I replaced the 50000+ line application acting as a middle man between the application and database with 500 lines of code that did the look up faster and was able to implement a reasonable caching strategy. This dropped resource consumption by a minimum of factor of ten at least. Misses were cheaper and it was able to cache most cases. It also involved modifying the client library in C to stop it unnecessarily wrapping primitives in objects to the high level language which was causing it to consume excessive amounts of memory when processing huge data streams.
Another system would download a huge data set for every point of sale constantly, then parse and apply it. It had to reflect changes quickly but would download the whole dataset each time containing hundreds of thousands of rows. I whipped up a system so that a single server (barring redundancy) would download it in a loop, parse it using C which was much faster than the traditional interpreted language, then use a custom data differential format, TCP data streaming protocol, binary serialisation and LZMA compression to pipe it down to points of sale. This protocol also used versioning for catchup and differential combination for additional reduction in size. It went from being 30 seconds to a few minutes behind to using able to keep up to with in a second of changes. It was also using so much bandwidth that it would reach the limit on ADSL connections then get throttled. I looked at the traffic stats after and it dropped from dozens of terabytes a month to around a gigabyte or so a month for several hundred machines. The drop in the graphs you'd think all the machines had been turned off as that's what it looked like. It could now happily run over GPRS or 56K.
I was working on a project with a lot of data and noticed these huge tables and horrible queries. The tables were all the results of queries. Someone wrote terrible SQL then to optimise it ran it in the background with all possible variable values then store the results of joins and aggregates into new tables. On top of those tables they wrote more SQL. I wrote some new queries and query generation that wiped out thousands of lines of code immediately and operated on the original tables taking things down from 30GB and rapidly climbing to a couple GB.
Another time a piece of mathematics had to generate all possible permutations and the existing solution was factorial. I worked out how to optimise it to run n*n which believe it or not made the world of difference. Went from hardly handling anything to handling anything thrown at it. It was nice trying to get people to "freeze the system now".
I build my own frontend systems (admittedly rushed) that do what angular/react/vue aim for but with higher (maximum) performance including an in memory data base to back the UI that had layered event driven indexes and could handle referential integrity (overlay on the database only revealing items with valid integrity) or reordering and reposition events very rapidly using a custom AVL tree. You could layer indexes over it (data inheritance) that could be partial and dynamic.
So many times have I optimised things on automatic just cleaning up code normally. Hundreds, thousands of optimisations. It's what makes my clock tick.4 -
So I have that custom-made wifi router I've built. And it uses a USB wifi adapter with AC (wifi5) capability - the fastest one I could find in AliExpress.
I set it up a while ago - the internet access works fine, although speeds are somewhat sluggish. But hey, what to expect from a cheapo on Ali! Not to mention it's USB, not a PCIe...
A few days ago I ran a few speedtest.net tests with my actual AC router and the one I've built. Results were so different I wanted to cry :( some pathetic 23Mbps with my custom router :(
This evening I had some time on my hands and finally decided to have an umpteenth look.
nmcli d wifi
this is what caught my eye first. The RATE column listed my custom router as 54Mbps, whereas the actual router had 195Mbps.
I have reviewed the hostapd configuration sooo many times - this time nothing caught my eye as well.
Googling did not give anything obvious as well.
What do we do next? Yes, that's right - enable debug and read the logs.
> VHT (IEEE 802.11ac) with WPA/WPA2 requires CCMP/GCMP to be enabled, disabling VHT capabilities
This is one of the lines at the top of the log. Waaaaiiitttt.. VHT is something I definitely want with ac -- why does it disable that??? Sounds like a configuration fuckup rather than the HW limitation! And config fuckups CAN be fixed!
Turns out, an innocently looking
`wpa_pairwise=TKIP`
change into
`wpa_pairwise=TKIP CCMP`
made a world of a difference!
:wq
!hostapd
connect to the hostapd hotspot and run that iperf3 test again, and... Oh my. Oh boi! My pants fell off -- the speed increased >3x times!
A quick speedtest.net test deems my custom router's download speeds hardly any worse than the speeds obtained using my LInksys!!
The moral of the story: no matter how innocent some configurations look, they might make a huge difference. And RTFL [read the fucking logs]
In the pic -- left - my actual router, right - my custom-built router with a USB wifi adapter. Not too shabby!7 -
Well... I had in over 15 years of programming a lot of PHP / HTML projects where I asked myself: What psychopath could have written this?
(PHP haters: Just go trolling somewhere else...)
In my current project I've "inherited" a project which was running around ~ 15 years. Code Base looked solid to me... (Article system for ERP, huge company / branches system, lot of other modules for internal use... All in all: Not small.)
The original goal was to port to PHP 7 and to give it a fresh layout. Seemed doable...
The first days passed by - porting to an asset system, cleaning up the base system (login / logout / session & cookies... you know the drill).
And that was where it all went haywire.
I really have no clue how someone could have been so ignorant to not even think twice before setting cookies or doing other "header related" stuff without at least checking the result codes...
Basically the authentication / permission system was fully fucked up. It relied on redirecting the user via header modification to the login page with an error set in a GET variable...
Uh boy. That ain't funny.
Ported to session flash messages, checked if headers were sent, hard exit otherwise - redirect.
But then I got to the first layers of the whole "OOP class" related shit...
It's basically "whack a mole".
Whoever wrote this, was as dumb and as ignorant to build up a daisy chain of commands for fixing corner cases of corner cases of the regular command... If you don't understand what I mean, take the following example:
Permissions are based on group (accumulation of single permissions) and single permissions - to get all permissions from a user, you need to fetch both and build a unique array.
Well... The "names" for permissions are not unique. I'd never expected to be someone to be so stupid. Yes. You could have two permissions name "article_search" - while relying on uniqueness.
All in all all permissions are fetched once for lifetime of script and stored to a cache...
To fix this corner case… There is another function that fetches the results from the cache and returns simply "one" of the rights (getting permission array).
In case you need to get the ID of the other (yes... two identifiers used in the project for permissions - name and ID (auto increment key))...
Let's write another function on top of the function on top of the function.
My brain is seriously in deep fried mode.
Untangling this mess is basically like getting pumped up with pain killers and trying to solve logic riddles - it just doesn't work....
So... From redesigning and porting from PHP 7 I'm basically rewriting the whole base system to MVC, porting and touching every script, untangling this dumb shit of "functions" / "OOP" [or whatever you call this garbage] and then hoping everything works...
A huge thanks to AURA. http://auraphp.com/
It's incredibily useful in this case, as it has no dependencies and makes it very easy to get a solid ground without writing a whole framework by myself.
Amen.2 -
My dev colleagues, the ceo, a external designer and me (dev) are sitting in the meeting room
and we discuss the result from the designer. He designed a complete relaunch of a
small CRM for the logistics sector.
The designer is a designer as you know him, big beart, small macbook, chai late
and he designed nothing, he hired a freelancer from romania.
My boss studied software development in the 80s but didn't really developed a software
for about 20 years, but he thinks he knows all and everything.
My boss is constantly complaining about the colors in the design and he would like
a iOS approach. Our system should complete copy the styles from iOS.
The really funny thing happend in just 1 minute. My boss is complaining again about the
colors and told the blue color is way to dark and the designer meant thats not possible the
blue color very bright. My boss sat next to the designer and looked not on the wall where
the picture was thrown from a projector, instead he looks from the side in the macbook screen
of the macbook which was in front of the designer. Then the designer says "Oh my god, the color
changes if I look from the side or from the top of the macbook." The Designer was blown away. My
boss couldn't believe it and did the same movements with his head and said. "Wow, you are right
the color changes".
We all other people couldn't believe that they are so dumb and thought this must be a joke. But
that wasn't a joke. After the meetin my boss told everyone in our company his results regarding the screen.
I wrote every story in a document, and I'm planning to create a book with dumb shit like this.2 -
I am an I.T Admin currently responsible for the URS, Validation, oversight of outsourced development and deployment of a new application for our company...
I've been saying once a week now for 2 fucking months that this thing will be ready to deploy at the end of the week.
With enough technical knowledge I know the hell business people put developers through, the lack of contextual understanding of the Job between the two sides is insane.
(I mean holy shit when you tab through various fields, even that ordering needs to be explicitly programmed.)
I refuse to put the pressure on our devs that I am told too, I cant submit a request and phone ten minutes later to ask if itll be done today, people plan their lives, the devs have other clients and projects... what the mother of fuck makes us so special that they must drop everything.
On top of that all the testing I do over and over and over and over reveals some pretty huge operational risks and I keep making changes so as to not blow up the operations of half our company.
I am not saying my boss is horrible or anything but Holy Hell, most people just can't put themselves in someone else's shoes for five short minutes
I try to please my boss while trying to protect my devs from abuse and sadly it results in me being in the middle of two sides playing tug of war and it is ripping me apart...
Why can't people just be more understanding and communicate and understand better... But don't worry all you beautiful game changing, world improving devs... I will always have your back3 -
Omg whhhy do things change so much from Laravel 5.x to 5.4? Tutorials are useless! And Google, I love you, but giving me laravel 4 answers as top results for my query specifying 5.4 is just infuriating!!!2
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I'm not sure where I'm going with this, but I'm fucking sick of my experience with the world.
I have a feeling that all that 1984 conspiracy type of ideas that I previously considered bullshit and fear mongering are real.
(Just to be clear, I'm not including most conspiracy theories which are very ignorant like flat earth, fake moon landing, or antivax, the people that spread those theories can die a horrible death IMHO).
Corporation consolidation is a fact and appears to become irreversible.
Because of technology, I can stay in the comfort of my house, safe from crime and be entertained without needing to have direct contact with humans.
People might say "that's your fault for not leaving the house". True but that is just how the world is.
The outside world in the cities I lived in is not a welcoming place.
Hell if you fucking find a bench it's a goddamn miracle, and if you do and sit for a long time, the police stares at you like you are up to something.
People don't talk to you because "don't talk to strangers".
It can be rare to find water or a bathroom that isn't a complete shithole.
So no wonder I rather stay at home, the outside world is hostile.
So yeah, go to a mall or something. And consume, consume, consume, because the outdoors suck.
Many pioneers thought technology was to improve the quality of life.
But no, it's just more isolation, less direct contact with people, less giving a fuck about other people.
And that's how feel about people of today. The least amount of fuck giving about others possible.
You would you would connect to more people faster, but no, the result is just millions of people browsing through the same "entertainment", shitty aggregated content.
Yes, consolidation affects internet too. Everything goes through fucking google, youtube, or whatever other fucking top 10 company.
Just like the class disparity, 1% of the things online get 99% of the exposure.
So if you're a small time anything, basically fuck you, because you're not something enormous.
Like, I wished I was a game developer, but there's thousands of brilliant indie games that get released every year, and they barely make what they're worth.
So why should I fucking try? So I can get ruined financially and I don't have a place to live in?
Software itself is so complex that is impossible to scrutinize decently.
We all laugh at congressmen asking the zuck silly questions.
Out of touch, true, but in hindsight, it is true to some extent that software is hard to regulate. Every software I on earth doesn't meet some standard one way or another.
Or maybe it's just too many of us right now.
When people scroll their search results to get access to the things they should be interested in, the only practical interface right now is being showing one link at a time.
But there's millions and millions of results.
One redeeming aspect of life is that one day I won't be alive anymore to observe the disgusting world we live in.
This could be just pure rambling and I can't prove any of the things I'm saying, I could just have been making the wrong friendships. So take this with a grain of salt.7 -
Found the dragon book, second edition, a pretty famous compiler book at the following url:
http://informatik.uni-bremen.de/agb...
Just in case anyone is interested in it. It kinda trips me out that for 1000+ pages its only 4.somethingmb and apparently it comes from the University of Bremen, it was on the top Google results.
I think its clean, not a security expert, so if someone that is more skilled in it that I am wants to go ahead and check it out let me know11 -
!dev
Whoever the fuck wit coded the entire system for the university/college application information portal over here in my country needs to be hung, shot, hung again and shot.
It's **ABSOLUTE FUCKING GARBAGE** on the design. First we have the search box. It literally takes a good 20 seconds to query 1000 entries at low traffic and 3 MINUTES at high traffic. Bad enough? Because it would also take that long to give you a table of search result which is, I shit you not, identical to the drop-down results you get while typing except rendered inside a <table></table> with some overlay!
Oh, did I mention it didn't have partial match? Yea, IT DIDN'T. For example, "John Hurr Doe City" would not match "John Hurr Doe city" just to piss you off. And then we have the fuckers that do this:
- University A John Hurr Doe city
- University B JHD City
- University C JHD city
That and no partial match. Yea. It's BS.
Also. if you wanna search again after view a school, you have to press "Back", the physical "Back" of the browser. Fair, it's good, but if you press anything other than that button, welll, you're fucked although lightly.
The cherry on top of the rant cone? The whole thing is made by the studentfucking Ministry of Education and Training, the mother of overlord of students. Yea. The fucking Ministry itself. Really. You wanna go "catch up with the world and master the 4.0 Industrial Revolution" and yet you can't fucking code the site properly. Fuck you, fuck you, fuck your horse you're riding and probably fuck you as well.
Sorry for getting slightly political at the end, the damn page is getting on my nerve. -
!rant
wk101 responses are the best ones so far in my opinion keep them coming. It would be nice if we could filter (recent, top, etc.) on search results.1 -
When I wrote my first algorithm that learns...
So in order to on board our customers onto our software we have to link the product on their data base to the products on ours. This seems easy enough but when you actually start looking at their data you find it's a fuck up of duplication's, bad naming conventions and only 10% or so have distinct identifiers like a suppler code,model no or barcode. After a week or 2 they find they can't do it and ask for our help and we take over. On average it took 2 of our staff 1-2 weeks to complete the task manually searching one record of theirs against our db at a time. This was a big problem since we only had enough resources to on board 2-4 customers a month meaning slow growth.
I realized when looking at different customers databases that although the data was badly captured - it was consistently badly captured similar to how crap file names will usually contain the letters 'asd' because its typed with the left hand.
I then wrote an algorithm that fuzzy matched against our data and the past matches of other customers data creating a ranking algorithm similar to google page search. After auto matching the majority of results the top 10 ranked search results for each product on their db is shown to a human 1 at a time and they either click the the correct result or select "no match" and repeat until it is done at which point the algo will include the captured data in ranking future results.
It now takes a single staff member 1-2 hours to fully on board a customer with 10-15k products and will continue to get faster and adapt to changes in language and naming conventions. Making it learn wasn't really my intention at the time and more a side effect of what I was trying to achieve. Completely blew my mind. -
Alright, who is rigging the "Top Tags" results? Where is Arch?
Arch users: we should aim to get `arch` into the devRant top tags by the end of the year2 -
This might be a long post. I need some serious advice.
For the past 6-7 months, My friend and I have been working with these two guys "Managers" on their startup idea. He managed the backend and I was managing the 2 frontend systems for them. The Managers are non-technical.
For the longest time, the Managers were very stubborn on how they wanted things to be implemented in my code or how they wanted something to look. Initially, this was not a bother as we thought that their experience bought some insight that we lacked, but after changing dozens of things back to how we originally made them, we started feeling unhappy. I specifically was more affected by this as most of their changes were related to the front end.
This caused a lot of rifts between us and sometimes led to heated conversations. I won't say that it's all on them. I do have an attitude issue. But then, it's the same with them.
Other than that, one of the Managers is very condescending. He used to talk badly, discredit my work and even say things like "Ohh, so you can't do it" for things that I said will take too much time to implement. This was seriously affecting my mental health.
Nevertheless, we completed the system, which was originally supposed to be just an MVP, over the course of these months and now have our sites up and running with almost 100-200 daily hits. But because it's an e-commerce site, that too with a very different model, the revenue has not started yet.
Yesterday, one of the Managers called me and in so many words told me that I should exit, because of my attitude, with my current equity which is just 3% which amounts to nothing as the company has no value right now. On top of that, I, an idiot, had not taken any remuneration for the first 4 months.
Although I too want to leave, now that I have seen their real face and also because of my mental health. I feel that the system I have made is worth more than 3% equity, way more than that. One of them is a multi-featured seller dashboard to manage products, finances, orders, and a ton of complex features like bulk uploads using excel, image cropping for products, and region selection. The other is a highly optimized dynamic site using Nuxt which is used as the store, with SEO good enough to often list it as one of the top results of various google searches. I'll drop the dev links in the comments if you are interested.
But I don't know how to go about it. I do have complete control over my code and have not signed any formal contract with them, but I feel bad about jeopardizing the company at this stage. Not to mention all that work will just go to waste as well.20 -
I love when searching for the error gives you results like this on the top of the first page on google. As you might imagine I don't speak Chinese17
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Eric Thomas' Top 10 Rules For Success
1- Know what you want.
If you don’t know what you want, how will you know what to say yes to in your life? Stop taking every body else’s leftovers and step up and take what you deserve!
2- Work on your gift.
We all have our own individual talents, gifts and strengths. But those natural gifts will only become truly great by refining and nourishing them. Natural ability will get you started, but commitment and determination to achieve greatness is what will get you to where you want to be.
3- No excuses.
Stop using your circumstances, finances or current position in life as an excuse to justify why you aren’t working towards your goals. You are in charge. If you aren’t where you want to be, take a look in the mirror and ask yourself honestly- WHY? Take responsibility for you life once and for all.
4- Upgrade your values.
Your values dictate your behaviours. And your behaviours create your results. If you want to a different result, you need to change your behaviour.
5- You reap what you sow.
Nothing in life is free. It is up to you to determine the course of your life. If you want success, you need to do what it takes, daily, to get there. Don’t focus so much on being successful. Focus on solving problems, helping others, and adding value to people’s lives, and success will come.
6- Education is the great equaliser.
If you are at the bottom, you need to learn. If you are at the top, you still need to learn. Never, ever, ever stop growing and educating yourself.
7- What is your WHY?
Why do you wake up in the morning and hustle? Why do you do what you do? Knowing the answer to this question is the single most important thing to know about yourself if you want to become successful. When you know WHY you are doing what you do, you won’t ever quit, even on a bad day.
8- Have boundaries.
If you want to be a huge success, you have to be strict on yourself with how you spend your energy. Distractions will come in many forms, family, friends, TV, but you have to make sure that your time is being spent wisely.
9- Speak from the heart.
Transparency is attractive. Don’t be afraid to open up to the world and let yourself be seen.
10- Succeed as bad as you want to breathe.
Everybody wants to be successful. But not everybody is willing to do the work that it takes to become successful. When you are willing to get so uncomfortable, so out of your depth, so blind that you have no other choice but to be successful, THEN you will become successful. The only question you need to ask yourself is this. Am I willing?
Credits: https://fearlessmotivation.com/2016...2 -
Colleague asked me to look at his eCommerce search filtering system as the customer was complaining it was slow taking 5-6 seconds to find results.
Delving into the code deeper, I discovered he was querying the results, sticking them in an array and then sub querying the results looking at all the combinations.
On top of that each sub query looked at the database fields using "DESCRIBE" to then search them each time it found a pair!
The total query count for one page search was 14,512!!!
Why oh Why? One SQL query could of done all that in one go.
I look at other code bits he's done and he's very good in other areas. I just don't get how sometimes a good developer can make such a weird decision? It's almost as if he wanted to make it as complex as possible.6 -
Just searched for an e-mail in Outlook on my work computer, and expected the last e-mail I had sent to be at the top of the results list. But it wasn't there…
Then I saw that above the dates in the results list, Outlook now has a category 'Top Results'. WHAT THE FUCK IS THIS NOW? FACEBOOK OR SOMETHING?
FUCKING HELL!9 -
A manager in the area, in an effort to “encourage” teams to meet their externally generated commitments before imposing mandatory extended hours, posted a chart showing Mt. Everest with weekly goals as stages up the mountain. First team to the top wins a $20 gift card. Looks just like this picture. Results will probably be similar.4
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Seems like the poisoning of the internet is coming to a head. While searching earlier for a first principles reference to answer a question with, I came across an entirely obfuscated query.
"Codd's forms of normalization"
https://google.com/search/...
In the first four pages, there are 5 results that aren't ad farms, crappy pasta tutorial sites, brand building articles, poorly understood rote regurgitation of information, quora, or some combination of all of the above.
In 2005, the top 5 would likely have contained Bell Labs, UoI, Cambridge and Oracle. Mind you, I don't think the world is getting dumber, exactly, just that the signal to noise ratio in the information sphere is getting worse and the risk from that is the world becomes markedly "dumber". The only barrier to entry anymore is how well your SEO optimization competes.
I'm obviously getting old.
/rant6 -
Oh god where do I start!?
In my current role I've had horrific experiences with management and higher ups.
The first time I knew it would be a problem: I was on a Java project that was due to go live within the month. The devs and PM on the project were all due to move on at the end. I was sitting next to the PM, and overheard him saying "we'll implement [important key feature] in hypercare"... I blew my top at him, then had my managers come and see if I was OK.
That particular project overran with me and the permanent devs having to implement the core features of the app for 6mo after everyone else had left.
I've had to be the bearer of bad news a lot.
I work now and then with the CTO, my worst with her:
We had implemented a prototype for the CEO of a sister company, he was chuffed with it. She said something like "why is it not on brand" - there was no brand, so I winged it and used a common design pattern that the CEO had suggested he would like with the sister company's colours and logo. The CTO said something like "the problem is we have wilful amateurs designing..." wilful amateurs. Having worked in web design since I was 12 I'm better than a wilful amateur, that one cut deep.
I've had loads with PMs recently, they basically go:
PM: we need this obscure set up.
Me & team: why not use common sense set up.
PM: I don't care, just do obscure set up.
The most recent was they wanted £250k infrastructure for something that was being done on an AWS TC2.small.
Also recently, and in another direction:
PM: we want this mobile app deploying to our internal MDM.
Us: we don't know what the hell it is, what is it!?
PM: it's [megacorp]'s survey filler app that adds survey results into their core cloud platform
Us: fair enough, we don't like writing form fillers, let us have a look at it.
*queue MITM plain text login, private company data being stored in plain text at /sdcard/ on android.
Us: really sorry guys, this is in no way secure.
Pm: *in a huff now because I took a dump on his doorstep*
I'll think of more when I can. -
Not dev, but a perf-eng confidence boost.
Our company was hired by a client to onboard perf-testing process and do some perf-related go-live stuff. Basically, make sure the app meets the SLAs.
Our company mobilized some internal resources for the task. The had 3-4 months. 2 months later they realized they won't pull it off. What a shame...
When the threat of dropping the ball and losing the client and recommendations became very real, they engaged us. Half the time, half the resources, a worried and annoyed client who now wants to control the whole initiative.
During the first 2 meetings we get the general idea of what they have, what they want. We take some time to prepare a plan to make it on time. The client argues our plan, mostly because one of the main points was mocking downstream dependencies [integrations]. He asks, then demands to do it all with live integrations. We explain why this is an incredible risk and why we should do it the proposed way. He disagrees.
Alright then... Maybe he knows smth we don't. Let's do it the risky way...
A month later test results are far from the target. I did my best with app de-bottlenecking and fine-tuning. But since the live integrations do not deliver, they hide other bottlenecks. The initiative is stuck.
Finally, the client agrees to do it with mocking. But now there's no time left as it will take almost a month to prepare mocks...
The client agrees we should have done it our way from the start. They postpone the go-live and we carry out our testing and tuning the right way.
That was one expensive and long "I told you so". But it boosted our [perf team's] confidence to the top and beyond :)
don't tell us how to do our job, unless you do want extra expenses -
Job review time,
(just a random pick from the a list).
---
"Engineering Lead"
Translation: "Chief Calculator Officer"
"Anyone can design or spec a product, get it manufactured overseas and get it to market. But will it be good? Will people buy it?"
Translation: "We're looking for a miracle"
"Take on a top notch team that is going places in Electronics, R&D and advanced product development."
Translation: "Professional Excel engineer wanted"
"This company is a little-known success story that has been operating for over X years, making mission-critical electronic equipment for use by consumers, professionals, government and industry."
Translation: "Design weapons and tamagotchis."
"Working as part of the Senior Leadership team, you will have charge of the I.P. engine and product development team spinning up new ideas and throwing them out the door."
Translation: "You're success is our success. Your failure is your failure."
"The Role
- Generate New Ideas
- Push for new products
- Drive manufacturing
- Manage a cross disciplinary team that includes Electronics, Software and Mechanical
- Project Manage new projects to completion
- Interact with marketing and sales to drive results"
Translation: "We've never hired one person to be a whole team before but we think it will work."
"On your first day, we expect:
- Strong Leadership experience and skills
- Solid Engineering Fundamentals
- Experience taking new and existing products to market
- Experience with manufacturing high-tech, mission critical equipment
- Commercial Acumen
- Bachelors in Electrical or Electronic Engineering"
Translation: "We expect you know where to hide the drugs already."
"Nice to have:
- Experience with Defense or Medical Systems
- R&D background
- MBA, B. Commerce or similar"
Translation: "By clicking on this job ad your background check is already under way."
"In return:
- A loyal and oustanding team will be there to support you
- Extremely knowledgeable experts to guide you
- Incredibly smart founders to mentor you
- The opportunity to work on a real product
- Extremely generous salary package"
Translation: "Our last dev has removed the Warrant Canary. Can you pleeease put it back?!"2 -
This is my first ever post on DevRant, and it will be more of a question: Is the tech sector more toxic than others?
I've been working for my entire adult life in tech, supporting tech companies of basically any scale. I've always worked in engineering teams, building the core software/product of the company. After years of passion and working hard, I believe I gained some skills in what I do.
However, every so often I reach a point where I feel burned out by all the chaos going on around me. I work as an "expert" in engineering and frequently I get the feeling that I'm not being listened to. Any feedback I give seems to be disregarded.
On top of that, I've met many people with a rather aggressive/abusive communication style. Engineers who truly believe they're far above and beyond everyone else, but with little to back that up. Talking shit about their predecessors, trashing junior engineers,...
I've seen behavior toward women that is grossly inappropriate. I've seen female coworkers cry more than once because they don't feel heard. I've seen coworkers being criticized for personal life choices they made.
In almost every company I've worked at, there was at least one engineer who was so stubborn that it became nearly impossible to work with. Just shutting people up, forcing the rest to follow their plan, and failing to provide any form of accountability when results don't pay off.
Here's the thing. I love developing products. I care about the people who want to use them. I really try to be nice to the people I work with. I started working in this sector because I really wanted to make a difference. However, all of that melts as snow on a sunny day, when I experience toxic behavior.
I am wondering if this is the same in every sector or if these problems are specific to working in tech. Is it maybe because tech is male-dominated and we've lost touch?
Every so often, when I lose my job or leave by burning out, I wonder... Is the grass greener on the other side? Would I be happier choosing another career?9 -
The first dev project, like real dev project, I participated in was a school one and it was double.
The class was meant to make us learn about the software's life cycle, so the teacher wanted us to develop a simple, yet complicated, thing: a Web platform to help tutors send/refer students to the university services (psychologist, nutriologist, etc) and to keep track of them visits.
We all agreed on it being easy.
Boy were we so wrong.
I was appointed as dev leader as well as some others (I was the programming leader, the other ones were the DB guy and the security guy) and as such I was in charge of the technology used (well, now we all know that the client is the one in charge of that as well as the designer) and I chose Django because we had some experience with it. We used it for the two projects the teacher asked us to do (the second one was to find a little shop and develop something for it, obviously with the permission and all that), but in the second one I decided to use React on top of Djangl, which ended being a really good combination tho.
So, in the first project, the other ones (all the classroom) started to discuss and decided to use some other stuff like unnecessary carousel for images, unnecessary functions, they created mock ups for stuff that was never there to begin with, etc. It was really awful, we had meetings with the client (the teacher) with updates on the project, and in not a single one he was satisfied with the results. But still, we continued with the path the majority chose and it was the worst: deadlines were not met, team members just vanished until the end of the semester, one guy broke his leg (and was a dev leader) and never said a word not did anything about the project. At the end, we presented literal garbage, the UI was awful, its colors were so ugly because we had to use the university official colors, the functionality was not there, there literally was a calendar to make appointments for the services (when did the client ask for that? No one knows), but hey, you could add services and their data to it, was it what the client wanted? Of course not! What do you think we are? Devs?
Suffice to say that, although we passed with good grades, the project and the team was shit (and I'm counting me in)
The good part is that the second project was finished by me and it looked really good, yet it didn't matter, the first project was supposed to be used by the university, but that thing was unusable.
Then, in the subsequent vacations I tried to make pretty and functional/usable, yet I failed because I had a deadline for another thing I had to do, but hey, the login screen looked amazing! -
The DEVRANT SEARCH could be improved.
Often wrong results are on top, because the algo accepts 1 different character and tags have no priority.
Example: I clicked on the tag "hangover".
Among the top results there were rants with "handover" and "hannover" (German city).
The first rant with the tag "hangover" was at position 18
Wouldnt the search result be better with another logic?
Priority 1: Tags with exactly the same word
Priority 2: Rants with exactly the same word
Priority 3: Tags with similar words/expressions
Priority 4: Rants with similar words/expressions -
I spent eight years in college doing very little progress and didn't graduate in the end ("studied" CS). I'm pretty sure I have severe ADHD and can't even afford to try and treat it/medicate it.
Anyway, I understand the eight-years-in-college-without-graduating matter looks very bad on a resume, but it's a good college (one of the top in my country) that gave me invaluable knowledge in what little I managed to accomplish there.
The way in which LinkedIn allows me to put college education only allows me to input (and in fact in most websites it's kinda required) start and end years, but to be truthful I gotta set these years with their huge span and some kind of observation that I didn't graduate...
This really gives me huge anxiety, and discourages me from even applying to jobs at all, feels like I've ruined my chances at getting into the industry, feels like it locks me away from opportunities, and I know how bad it looks for the HR people, who probably just reject me outright because on top of everything I'm not even the kind of person to particularly attract positive attention from the "normies" as they say.
So, should I just not put my incomplete/dragged out "education" on LinkedIn? I'm not sure if *some* CS education with extremely poor academic results is better than showing no history of higher education at all.1 -
When you're using openapi generators and stuff for generating SDK code and let "the architect" handle the data structure and nomenclature, don't you hate having to add 33 (I counted) models, most of which are just the same class with different name or one property apart from each other, serialization of which gives request body overhead 56-132x (actual calculated results depending on the model complexity) the size of actual data you want to send, just to add support for one endpoint that needs just one model that started this whole madness?
I just had to add this one top level model reference and this happened to me. Those 33 models are not including the ones I already had included in my project so they didn't have to import them again.
For the love of <your_belief_here /> and all that's holy, never ever agree on generating code based on openapi if the person responsible for that is unexperienced. It will do more harm than good, trust me.
Before we decided to go with generated SDK my compiled product was a bit over 30KB, and worked just fine, but required a bit of work on each breaking API change. Every change in the API requires now 75% of that work and the compiled package is now over 8MB (750KB of which is probably my code and actually needed dependencies).
Adding an endpoint handler before? Add url, set method and construct the body with the bare minimum accepted by the server
Now? Add 33 models (or more), run full-project find&replace and hope it will work with the method supplied by the generated code, because it's not a mature tech and it's not always guaranteed it will work. -
After thinking about what I should do. I first was going to do autohotkeys but, I thought there would be a better way... Is there a way to get a HTML from a website and display certain sections to the end user? E.G Someone enter Dog enter a GUI and the it gets the top three search results and the display them in a notepad or something.2
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The worst meeting I was in I didn't know how bad it was until later. It was my first week at a new job, and I mostly just spent that week pulling tickets off of the top of the backlog and getting acclimated to the build environment and the project structure.
The meeting was a "sell off" where we would "sell" our efforts to the product owners, which were executives. After my project mentor went over the things we had accomplished, an executive asked why we accomplished those things but not the things that were asked for. I don't recall everything that was said, the basically our project manager threw us under the bus.
After the meeting, I looked at the backlog, and nothing that the Executives talked about was in the backlog, nor anywhere to be found. Our project manager, expected us to just "know" what we were supposed to work on, and create our own user stories. Apparently, what I found out after, was that the project manager went to one of the executives and complained that we, the developers never did what he asked and that we were just rogues working on whatever we wanted to work on. He was our project manager for another month, and he never created any tickets for us, even after two hour long meetings with the project owners. I honestly don't know what he did all freakin' day. He was always in work early. I'm sure a quick brush through his browser history would reveal some interesting things.
The results of that meeting led to this developer to not receive a bunch of RCUs with the rest of the developers amongst another things. Turns out those RCUs were golden handcuffs for everyone else. He left sometime after that and found another place. I interviewed at that place, too and got the job. Now I have the shortest, most productive meetings ever. -
There was a department. Long time ago their work was somewhat complicated: background checks of businesses, websites, ToSes, assuring agreement compliance, some risk management on top. They started as small 3 people team but over the years they were hiring new employees to catch up with the growing customer base. They were still struggling. Few years back we've integrated 3rd party services to help them and, finally, their backlog was gone!
In January they complained about how much more work they have since the merger so I inquired about which process was troublesome, what was the flow, etc., and it turned out to be very... Tinder-like - the issue was the sheer number of cases:
1. open a case,
2. check results in few windows,
3. if green + green + green, move right.
4. else move left.
It was ridiculous, I wouldn't stand for that. I sat for an hour, made some ghosting scripts that followed same business logic and saved results alongside their actual decisions. Last week I compared the two and there was zero difference so I green-lit it with my boss and pushed to prod.
Oh, the happiness on their faces when they heard the news, the disbelief, the tears of joy!
And then it happened. After 4 years of being cautious not to stir the waters I did it again. Yesterday I accidentally replaced 17 people department with 3 scripts. How was I supposed to know it was *all* they were doing??1 -
I hate when I have a random pointless idea but don’t know how to implement it. And all the search results are from 2011-2013 and I know for sure there’s been some major changes to the unity engine’s scripting since 2013
Guess it’s time to pick the top 10 most promising results and see what aspects work and which don’t and go from there3 -
Heres the initial upgraded number fingerprinter I talked about in the past and some results and an explanation below.
Note that these are wide black images on ibb, so they appear as a tall thin strip near the top of ibb as if they're part of the website. They practically blend in. Right click the blackstrip and hit 'view image' and then zoom in.
https://ibb.co/26JmZXB
https://ibb.co/LpJpggq
https://ibb.co/Jt2Hsgt
https://ibb.co/hcxrFfV
https://ibb.co/BKZNzng
https://ibb.co/L6BtXZ4
https://ibb.co/yVHZNq4
https://ibb.co/tQXS8Hr
https://paste.ofcode.org/an4LcpkaKr...
Hastebin wouldn't save for some reason so paste.ofcode.org it is.
Not much to look at, but I was thinking I'd maybe mark the columns where gaps occur and do some statistical tests like finding the stds of the gaps, density, etc. The type test I wrote categorizes products into 11 different types, based on the value of a subset of variables taken from a vector of a couple hundred variables but I didn't want to include all that mess of code. And I was thinking of maybe running this fingerprinter on a per type basis, set to repeat, and looking for matching indexs (pixels) to see what products have in common per type.
Or maybe using them to train a classifier of some sort.
Each fingerprint of a product shares something like 16-20% of indexes with it's factors, so I'm thinking thats an avenue to explore.
What the fingerprinter does is better explained by the subfunction findAb.
The code contains a comment explaining this, but basically the function destructures a number into a series of division and subtractions, and makes a note of how many divisions in a 'run'.
Typically this is for numbers divisible by 2.
So a number like 35 might look like this, when done
p = 35
((((p-1)/2)-1)/2/2/2/2)-1
And we'd represent that as
ab(w, x, y, z)
Where w is the starting value 35 in this case,
x is the number to divide by at each step, y is the adjustment (how much to subtract by when we encounter a number not divisible by x), and z is a string or vector of our results
which looks something like
ab(35, 2, 1, [1, 4])
Why [1,4]
because we were only able to divide by 2 once, before having to subtract 1, and repeat the process. And then we had a run of 4 divisions.
And for the fingerprinter, we do this for each prime under our number p, the list returned becoming another row in our fingerprint. And then that gets converted into an image.
And again, what I find interesting is that
unknown factors of products appear to share many of these same indexes.
What I might do is for, each individual run of Ab, I might have some sort of indicator for when *another* factor is present in the current factor list for each index. So I might ask, at the given step, is the current result (derived from p), divisible by 2 *and* say, 3? If so, mark it.
And then when I run this through the fingerprinter itself, all those pixels might get marked by a different color, say, make them blue, or vary their intensity based on the number of factors present, I don't know. Whatever helps the untrained eye to pick up on leads, clues, and patterns.
If it doesn't make sense, take another look at the example:
((((p-1)/2)-1)/2/2/2/2)-1
This is semi-unique to each product. After the fact, you can remove the variable itself, and keep just the structure in question, replacing the first variable with some other number, and you get to see what pops out the otherside.
If it helps, you can think of the structure surrounding our variable p as the 'electron shell', the '-1's as bandgaps, and the runs of '2's as orbitals, with the variable at the center acting as the 'nucleus', with the factors of that nucleus acting as the protons and neutrons, or nougaty center lol.
Anyway I just wanted to share todays flavor of insanity on the off chance someone might enjoy reading it.1 -
Top 12 C# Programming Tips & Tricks
Programming can be described as the process which leads a computing problem from its original formulation, to an executable computer program. This process involves activities such as developing understanding, analysis, generating algorithms, verification of essentials of algorithms - including their accuracy and resources utilization - and coding of algorithms in the proposed programming language. The source code can be written in one or more programming languages. The purpose of programming is to find a series of instructions that can automate solving of specific problems, or performing a particular task. Programming needs competence in various subjects including formal logic, understanding the application, and specialized algorithms.
1. Write Unit Test for Non-Public Methods
Many developers do not write unit test methods for non-public assemblies. This is because they are invisible to the test project. C# enables one to enhance visibility between the assembly internals and other assemblies. The trick is to include //Make the internals visible to the test assembly [assembly: InternalsVisibleTo("MyTestAssembly")] in the AssemblyInfo.cs file.
2. Tuples
Many developers build a POCO class in order to return multiple values from a method. Tuples are initiated in .NET Framework 4.0.
3. Do not bother with Temporary Collections, Use Yield instead
A temporary list that holds salvaged and returned items may be created when developers want to pick items from a collection.
In order to prevent the temporary collection from being used, developers can use yield. Yield gives out results according to the result set enumeration.
Developers also have the option of using LINQ.
4. Making a retirement announcement
Developers who own re-distributable components and probably want to detract a method in the near future, can embellish it with the outdated feature to connect it with the clients
[Obsolete("This method will be deprecated soon. You could use XYZ alternatively.")]
Upon compilation, a client gets a warning upon with the message. To fail a client build that is using the detracted method, pass the additional Boolean parameter as True.
[Obsolete("This method is deprecated. You could use XYZ alternatively.", true)]
5. Deferred Execution While Writing LINQ Queries
When a LINQ query is written in .NET, it can only perform the query when the LINQ result is approached. The occurrence of LINQ is known as deferred execution. Developers should understand that in every result set approach, the query gets executed over and over. In order to prevent a repetition of the execution, change the LINQ result to List after execution. Below is an example
public void MyComponentLegacyMethod(List<int> masterCollection)
6. Explicit keyword conversions for business entities
Utilize the explicit keyword to describe the alteration of one business entity to another. The alteration method is conjured once the alteration is applied in code
7. Absorbing the Exact Stack Trace
In the catch block of a C# program, if an exception is thrown as shown below and probably a fault has occurred in the method ConnectDatabase, the thrown exception stack trace only indicates the fault has happened in the method RunDataOperation
8. Enum Flags Attribute
Using flags attribute to decorate the enum in C# enables it as bit fields. This enables developers to collect the enum values. One can use the following C# code.
he output for this code will be “BlackMamba, CottonMouth, Wiper”. When the flags attribute is removed, the output will remain 14.
9. Implementing the Base Type for a Generic Type
When developers want to enforce the generic type provided in a generic class such that it will be able to inherit from a particular interface
10. Using Property as IEnumerable doesn’t make it Read-only
When an IEnumerable property gets exposed in a created class
This code modifies the list and gives it a new name. In order to avoid this, add AsReadOnly as opposed to AsEnumerable.
11. Data Type Conversion
More often than not, developers have to alter data types for different reasons. For example, converting a set value decimal variable to an int or Integer
Source: https://freelancer.com/community/...2 -
Currently debugging a project that was written over 4 years ago...
At first all was well in the world, besides the ever present issue off our goddamn legacy framework. This framework was written 7 years ago on top of an existing open source one, because the existing one was 'lacking some features' & 'did not feel right'.
Now those might be perfectly fine reasons to write a layer on top of a framework, but please, for all future devs sanities, write fucking documentation and maintain it if you're going to use said framework in all major projects!!
Anyhow back to the situation at hand, I'm getting familiar with the project, sighing at the use of our stupid legacy framework, attempting to recreate the reported bugs...
Turns out I can't, well I get other bugs & errors, but not the reported ones. I go to the production server, where I suddenly do can reproduce them...
Already thinking, fuck my life, and scared for the results... I try a 'git status' on the production server....
And yep, there it is, lo and behold, fucking changes on production, that are not in git, fuck you previous dev who worked on this and your stupid lazy ass modifcations on production!
Bleh, already feeling royally pissed, there's only 1 thing I can do, push changes back to git in a seperate branch, and pray I can merge them back in master on my dev environment without to much issues...
Only I first have to get our sysadmi. to allow pushing from a production server back to our git server...
Sigh, going to put on my headphones, retreat to my me space and try to sort out this shitpile now... -
I feel searching for documentation of things is getting difficult day by day. The actual documentation sites get very low page ranks and they end-up on 2nd or 3rd page of search results, while all the first page search results are links to articles filled Google Ads everywhere. If you search for say Apache Hive String Functions, you will get 10 different websites talking about Hive String functions, and the actual documentation site is on Page 2. For less popular tools, the page rank can be even lower.
On top of this, none of those 10 articles have and reference link to the actual documentation page in case you read the article and want to just quickly glance at the actual documentation which is the source of truth.4 -
NodeJS and MongoDB. And tutorials.
Everywhere tutorials show simple example of console.log output of findOne. Good, that works... But when I try to extrapolate example to assign results to variable, it won't work. Inside that fetch anonymous function it works... But outside, simply undefined no matter what I try. Return doesn't return either...
Why it is so hard to make tutorials and examples that would be actually useful. I've spent hours with this already.
And on top of that it is really hard to find tutorials staying with minimum extra dependencies. Like most tutorials in this case throw mongoose in the soup. And I don't want that.
Sometimes makes me question why I try to learn these new things, when I have knowledge of other technologies that I could use faster and easier...3 -
I had a pretty good day.
I had my first pay raise as a dev;) not huge but i wasnt expecting one for another 4months ;)
And i was working on a security scrip for after effect plugins. The thing is called Extendscript and is built on top of ecma3. Yeah javascript version from 1999. Hashing stuff gave me different results. Took me about a week to realise that the string buffer were different and i had to parse in latin something to have the same matching buffers. What a hassle man. Let alone trying to make it work with Windows terminal which after starting with Linux then mac, windows seems sooo sucky.
But yeah its my first security scripts so 2 main achievements for me today! Ive waited 4 years to reach a level where i now feel like a real professional dev. ;) sry not a rant ;) -
I could calculate the percentage of a value from a total set right from the top of my head. This includes large numbers like for example; finding the percentage of 1040 from 75000 = 1.377%, 344 from 5400 = 6.37% and so on...
But most times when I come across scenarios to apply such calculations on code I find myself googling for formulas and then I wonder; how am I able to come to a valid result when faced with similar challenge but could not recall or tell the formula my funny brain is deriving it's results from.
Maybe my brain isn't even using a formula. :/
So I guess because from pondering on how I arrived at results, I could tell I'm starting from an "if"...
Like:
If 25 of 100 = 25%
and 45 of 250 = 18%
Then 450 of 2400 will equal 18.7...%
Ask me what formula was used in the first "if" condition and I can't tell because that's common sense for me.2 -
Any tips on getting contracts? I know this can be “googled” but maybe someone else out there has some interesting tips that don’t show up at the top of the search results. Im a full stack engineer in the US, mostly React, Node, MySQL2
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@dfox The wk57-search and other searches are not working correctly.
On top of the search list there are wrong results, because the search algo also accepts similar terms.3 -
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#Plumbing #Alessandro Demarinis Yonkers -
Whenever somebody asks my team to forge results , benchmarks ...
http://nbcnews.com/business/autos/...