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Search - "learning loop"
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!rant
Programming is a huge blessing i believe we all should be thankful to. For me, it literally turned my life around.
11 months ago i was fighting a losing battle with depression, and contemplated suicide constantly. I would use a self remedy of smoking weed and sleeping all day long. I was depressed because i felt my life had no real value. I was doing nothing, and its kind of an infinite loop.
You don't do anything, so you feel bad, so you don't do anything, and so on.
That was until i finally took the step that changed my life. I searched and wanted to learn something. I always liked web pages so i thought id get into web development.
Did some research, found out that the fastest way to go was to learn ruby on rails. I followed a tutorial i found online, and literally pushed myself through it. There were times when there where things i didnt understand, and when it was really bad, but i pushed myself through it and i finished the tutorial.
Just finishing the tutorial and learning something new helped me alot. I had already quit smoking and was feeling way better, but after a while i started feeling bad again since i wasnt doing anything after i had finished learning, so i started working on a personal project, creating it from scratch, and just working on it day and night. I worked 14 hours a day, never really leaving my room ( this was during summer vacation ) for a month.
There were many things i didnt understand, but i never gave up and always searched for the solution and read about it until i understood it better. Looking back, there were things i knew could have been done in a better way, but as a first project, im proud of myself, not because it rocks, but because i did not give up.
In the process of starting a new life, i was really lonely. I cut all ties with everyone i knew, since they were all toxic, all i had in my life was ruby on rails and my web application. I wanted to launch it but couldn't due to personal reasons.
Not being able to launch and see something live, something that you worked so hard on, that you put so much effort into, that was devastating to me. I felt as if all my efforts had gone to waste.
And here is what i love most about programming, NOTHING EVER GOES TO WASTE. All that effort you spent on something ? All these all nighters you pulled ? All that frustration from that bug ? It will pay off later. It always does somehow. You get more knowledge and become a better programmer, and sometimes it even gives way to new opportunities and chances you never even expected.
I included my web application in my resume and it helped land me a job as a junior developer in a really nice company. A job that i wouldn't even have dreamed of several months earlier.
Programming and creating something new and learning something new everyday, creating something that people use, that someone else will benefit from and be grateful for, i think we should never take that for granted !
Tl;dr : learning how to code and web development saved my life9 -
Confuzzled if I should go the low level way and learn more about software architecture and foundation or go the artificial intelligence machine learning way because I want to get out of this infinite loop of only developing apps!4
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TL;DR :
"when i die i want my group project members to lower me into my grave so they can let me down one last time"
STORY TIME
Last year in College, I had two simultaneous projects. Both were semester long projects. One was for a database class an another was for a software engineering class.
As you can guess, the focus of the projects was very different. Databases we made some desktop networked chat application with a user login system and what not in Java. SE we made an app store with an approval system and admin panels and ratings and reviews and all that jazz in Meteor.js.
The DB project we had 4 total people and one of them was someone we'll call Frank. Frank was also in my SE project group. Frank disappeared for several weeks. Not in class, didn't contact us, and at one point the professors didn't know much either. As soon as we noticed it would be an issue, we talked to the professors. Just keeping them in the loop will save you a lot of trouble down the road. I'm assuming there was some medical or family emergency because the professors were very understanding with him once he started coming back to class and they had a chance to talk.
Lesson 1: If you have that guy that doesn't show up or communicate, don't be a jerk to them and communicate with your professor. Also, don't stop trying to contact the rogue partner. Maybe they'll come around sometime.
It sucked to lose 25% of our team for a project, but Frank appreciated that we didn't totally ignore him and throw him under the bus to the point that the last day of class he came up to me and said, "hey, open your book bag and bring it next to mine." He then threw a LARGE bottle of booze in there as a thank you.
Lesson 2: Treat humans as humans. Things go wrong and understanding that will get you a lot farther with people than trying to make them feel terrible about something that may have been out of their control.
Our DB project went really well. We got an A, we demoed, it worked, it was cool. The biggest problem is I was the only person that had taken a networking class so I ended up doing a large portion of the work. I wish I had taken other people's skills into account when we were deciding on a project. Especially because the only requirement was that it needed to have a minimum of 5 tables and we had to use some SQL language (aka, we couldn't use no-SQL).
The SE project had Frank and a music major who wanted to minor in CS (and then 3 other regular CS students aside from me). This assignment was make an app store using any technology you want. But, you had to use agile sprints. So we had weekly meetings with the "customer" (the TA), who would change requirements on us to keep us on our toes and tell us what they wanted done as a priority for the next meeting. Seriously, just like real life. It was so much fun trying to stay ahead of that.
So we met up and tried to decided what to use. One kid said Java because we all had it for school. The big issue is trying to make a Java web app is a pain in the ass. Seriously, there are so many better things to use. Other teams decided to use Django because they all wanted to learn Python. I suggested why not use something with a nice package system to minimize duplicating work that had already been done and tested by someone. Kid 1 didn't like that because he said in the real world you have to make your own software and not use packages. Little did he know that I had worked in SE for a few years already and knew damn well that every good project has code from somewhere else that has already solved a problem you're facing. We went with Java the first week. It failed miserably. Nobody could get the server set up on their computers. Using VCS with it required you to keep the repo outside of the where you wrote code and copy and paste changes in there. It was just a huge flop so everyone else voted to change.
Lesson 3: Be flexible. Be open to learning new things. Don't be afraid to try something new. It'll make you a better developer in the long run.
So we ended up using Meteor. Why? We all figured we could pick up javascript super easy.Two of us already knew it. And the real time thing would make for some cool effects when an app got a approved or a comment was made. We got to work and the one kid was still pissed. I just checked the repo and the only thing he committed was fixing the spelling of on word in the readme.
We sat down one day and worked for 4 straight hours. We finished the whole project in that time. While other teams were figuring out how to layout their homepage, we had a working user system and admin page and everything. Our TA was trying to throw us for loops by asking for crazy things and we still came through. We had tests that ran along side the application as you used it. It was friggin cool.
Lesson 4: If possible, pick the right tool for the job. Not the tool you know. Everything in CS has a purpose. If you use it for its purpose, you will save days off of a project.1 -
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 -
First rant: but I'm so triggered and everyone needs a break from all the EU and PC rants.
It's time to defend JavaScript. That's right, the best frikin language in the universe.
Features:
incredible async code (await/async)
universal support on almost everything connected to the internet
runs on almost all platforms including natively
dynamically interpreted but also internally compiled (like Perl)
gave birth to JSON (you're welcome ppl who remember that the X in AJAX stood for XML)
All these people ranting about JS don't understand that JS isn't frikin magic. It does what it needs to do well.
If you're using it for compute-heavy machine learning, or to maintain a 100k LOC project without Typescript, then why'd you shoot yourself in the foot?
As a proud JS developer I gotta scroll through all these posts gushing over the other languages. Why does nobody rant about using Python for bitcoin mining or Erlang to create a media player?
Cuz if you use the wrong tool for the right job, it's of course gonna blow up in your face.
For example, there was a post claiming JS developers were "scared" of multithreading and only stick in their comfort zone. Like WTF when NodeJS came out everything was multithreaded. It took some brave developers to step out of the comfort zone to embrace the event loop.
For a web app, things like PHP and Node should only be doing light transforms between the database information and HTML anyways. You get one thread to handle the server because you're keeping other threads open to interface with databases and the filesystem. The Nexus.js dev ranting on all us JS devs and doesn't realize that nobody's actual web server is CPU bound because of writing HTML bodies, thats why we only use 1 thread. We use other worker threads to do the heavy lifting (yes there is a C++ bridge look it up)
Anyways TL;DR plz respect JS developers we're people too. ES7 is magic and please don't shit on ES3 or we'll start shitting on the Python 2-3 conversion (need to maintain an outdated binary just cuz people leave out ()'s in their print statements)
Or at least agree that VB.NET is an abomination and insult to the beauty that is TI-84 BASIC13 -
!rant
When I was in 8th grade and was learning to code (c++), I sincerely believed that calling a function within a function simply calls it again (like in a loop) . I had never heard of recursion.
And I actually made a small project in which I called a function again and again thinking that calling another terminates the previous one.
No wonder my program kept crashing. I have still kept that code with me as a wonderful memory.
I know this isn't particularly interesting, but I just saw that code today and felt like sharing this...3 -
Running a fucking conda environment on windows (an update environment from the previous one that I normally use) gets to be a fucking pain in the fucking ass for no fucking reason.
First: Generate a new conda environment, for FUCKING SHITS AND GIGGLES, DO NOT SPECIFY THE PYTHON VERSION, just to see compatibility, this was an experiment, expected to fail.
Install tensorflow on said environment: It does not fucking work, not detecting cuda, the only requirement? To have the cuda dependencies installed, modified, and inside of the system path, check done, it works on 4 other fucking environments, so why not this one.
Still doesn't work, google around and found some thread on github (the errors) that has a way to fix it, do it that way, fucking magic, shit is fixed.
Very well, tensorflow is installed and detecting cuda, no biggie. HAD TO SWITCH TO PYHTHON 3,8 BECAUSE 3.9 WAS GIVING ISSUES FOR SOME UNKNOWN FUCKING REASON
Ok no problem, done.
Install jupyter lab, for which the first in all other 4 environments it works. Guess what a fuckload of errors upon executing the import of tensorflow. They go on a loop that does not fucking end.
The error: imPoRT eRrOr thE Dll waS noT loAdeD
Ok, fucking which one? who fucking knows.
I FUCKING HATE that the main language for this fucking bullshit is python. I guess the benefits of the repl, I do, but the python repl is fucking HORSESHIT compared to the one you get on: Lisp, Ruby and fucking even NODE in which error messages are still more fucking intelligent than those of fucking bullshit ass Python.
Personally? I am betting on Julia devising a smarter environment, it is a better language already, on a second note: If you are worried about A.I taking your job, don't, it requires a team of fucktards working around common basic system administration tasks to get this bullshit running in the first place.
My dream? Julia or Scala (fuck you) for a primary language in machine learning and AI, in which entire environments, with aaaaaaaaaall of the required dlls and dependencies can be downloaded and installed upon can just fucking run. A single directory structure in which shit just fucking works (reason why I like live environments like Smalltalk, but fuck you on that too) and just run your projects from there, without setting a bunch of bullshit from environment variables, cuda dlls installation phases and what not. Something that JUST FUCKING WORKS.
I.....fucking.....HATE the level of system administration required to run fucking anything nowadays, the reason why we had to create shit like devops jobs, for the sad fuckers that have to figure out environment configurations on a box just to run software.
Fuck me man development turned to shit, this is why go mod, node npm, php composer strict folder structure pipelines were created. Bitch all you want about npm, but if I can create a node_modules setting with all of the required dlls to run a project, even if this bitch weights 2.5GB for a project structure you bet your fucking ass that I would.
"YOU JUST DON'T KNOW WHAT YOU ARE DOING" YES I FUCKING DO and I will get this bullshit fixed, I will get it running just like I did the other 4 environments that I fucking use, for different versions of cuda and python and the dependency circle jerk BULLSHIT that I have to manage. But this "follow the guide and it will work, except when it does not and you are looking into obscure github errors" bullshit just takes away from valuable project time when you have a small dedicated group of developers and no sys admin or devops mastermind to resort to.
I have successfully deployed:
Java
Golang
Clojure
Python
Node
PHP
VB/C# .NET
C++
Rails
Django
Projects, and every single fucking time (save for .net, that shit just fucking works on a dedicated windows IIS server) the shit will not work with x..nT reasons. It fucking obliterates me how fucking annoying this bullshit is. And the reason why the ENTIRE FUCKING FIELD of computer science and software engineering is so fucking flawed.
But we can't all just run to simple windows bs in which we have documentation for everything. We have to spend countless hours on fucking Linux figuring shit out (fuck you also, I have been using Linux since I was 18, I am 30 now) for which graphical drivers for machine learning, cuda and whatTheFuckNot require all sorts of sys admin gymnasts to be used.
Y'all fucked up a long time ago. Smalltalk provided an all in one, easily rollable back to previous images, easily administered interfaces for this fileFuckery bullshit, and even though the JVM and the .NET environments did their best to hold shit down, and even though we had npm packages pulling the universe inside, or gomod compiling shit into one place NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO we had to do whatever the fuck we wanted to feel l337 and wanted.
Fuck all of you, fuck this field, fuck setting boxes for ML/AI and fuck every single OS in existence2 -
I wanna learn something new but everytime I take one course I stop at the first video u.u
It's like I can't keep on the learning curve of anything unless I have the real need to do it :/
In addition, everytime I want to retake the course, a new/unknown technology is in front of me and well... everything starts again2 -
For robotics I decided to write a program that would automatically tune a PID loop (a loop with three magic constants that tells you how much power to give the motors).
Being a high school student who hasn't been taught anything about the theory of PID loops or the right way to tune them, I had no clue what I was doing. So instead of actually learning the calculus to do it, I just made an evolutionary tuner that keeps guessing slight variations of the last-best three constants.
Basically, you press start and the robot spins in circles until you come back in 15 minutes.3 -
!rant
so the other day i was programming and suddenly i wanted to learn haskell. (i don't know why it hit me so suddenly, maybe because it's a 'pure' functional programming language and these 2 terms i knew nothing about)
and to be honest it's really hard coming from an imperative programming language (C/C++, yes, i know they are different in their ways). it's like learning to program again! you really have to get a different mindset and for me honestly it's hard to grasp the idea that 'variables' are immutable! like, that's soooo weird it still stucks to me. for example how did they define the max or min function without using a while loop? what are monads?
I am just 2 days in but it'll be a fun ride!6 -
I was wondering !
As a computer geek I would like to know everything from mathematics to programming , robotics and machine learning but as I go , new technologies appear and it's
just like an endless while loop!
I don't mean I wanna stop learning new things but just looking for a more effitient way for doing this!
Any idea about this?1 -
So happy about being about to convince management that we needed a large refactor, due to requirements change, and since the code architecture from the beginning had boundaries built before knowing all the requirements...
pulled the shame on us, this is a learning lesson card.. blah blah blah
Also explained we need to implement an RTOS, and make the system event driven... which then a stupid programmer said you mean interrupt driven ... and management lost their minds... ( bad memories of poorly executed interrupts in the past).... had to bring everyone back down to earth.. explained yes it’s interrupt driven, but interrupt driven properly unlike in the past (prior to me)... the fuck didn’t properly prioritize the interrupts and did WAYYY too much in the interrupts.
Explained we will be implementing interrupts along side DMA, and literally no message could be lost in normal execution.. and explained polling the old way along side no RTOS, Wastes power, CPU resources and throws timing off.
Same fucker spoke up and said how the fuck You supposed to do timing, all the timing will be further off... I said wrong, in this system .. unlike yours, this is discreet timing potential and accurate as fuck... unlike your round robin while loop of death.
Anyway they gave me 3 weeks.. and the system out performs, and is more power efficient than the older model.
The interrupting developer, now gives me way more respect...4 -
During my first semester of CS we were mostly using MatLab for basal scripting - assigning variables, learning about scope, that type of thing. I was excited to start learning programming but wanted to actually make something rather than reversing arrays and incrementing counters for weeks.
I discovered the image() function which takes a float[][] matrix and displays it as an image. I generated my arrays of random numbers and made a simple nested loop where I iterated over each element, averaging it with its neighbours, and - it worked on the first run! I made a freaking noise and blur filter!
That rush of planning it out, making it, and seeing it work I think is my main drive in coding. All the hours of undefined-but-they-are-tho import paths and mystery segfaults are worth it once there is that moment of "it lives!". -
My first software.. Okay. So first time I ever attempted was with my father, i was around 8 or so, i remember very little from it, but in nutshell, i somehow ended up at his job having day off school or something, no idea.
Apparently he was bored, so he decided yo show me... Basic. Yep, thats right. Frking basic. Anyway, he shown me some really basic stuff in basic, and pushed the envelope really hard, just trying to force into me more and more in these 8hrs. I started with filling screen with "o" characters. Most of times he was telling me what to write with elaborate explanation why. At the end of the day, we finished with simple maze game where player was "o" and maze walls was #. Without any goal, or anything.
Next day i was at point 0, understood nothing from it except how to handle keystrokes (and belive me, that for me was huge mindblow, and even bigger mindblow that it actually made prefect sense).
I dont remember much, but later i started with father-assisted c++ and some pascal. I immidietly loved c++ but dropped learning it for (NullPointer) reason.
Thats not really project imho, so now time for my actual first project.
It was about time when ARK survival evolved was a fresh thing, i was playing it a lot. Server admin became buddy. We all complained about max level cap, but to change it in config you needed to input whole new xp curve.
At that time i had great familiarity with google and computers, some thought i was some kind of PC god (seriously I heard someone saying so about me lol) just becouse I could ressurect most cases of broken windows. And I had next to zero programming expirience. It was about to change. I made first c++ actual program, that was making xp curve for you. It took me just bearly 2 days and was series of cin, cout, one file open, some maths in loop, and done. Maths was very bad. But i pushed it into steam forums, and one guy responded how.bad my math was, so we colabed on making 2 iteration. Took around week. Than half a year passed and we wanted go big. Go gui. I had no freaking idea how making gui looks like. Community liked my cli tool, we had quite a lot of downloads, why not go GUI. And thats when I discovered QT framework. And we had few features in mind... It took us half a year to make it. From 60 lines of code i jumped into 1k lines of code. We pushed it and immidietly started working on 4th version with much greater customizability etc.
Than i finished 18 and found a job. Job in php. I got it becouse I made this project.
Now project is abandon. This project also gave me a lesson that donations will not feed you.
Edit: and before you think about my father that he was nice person to show me code, trust me, i dont know bigger dick than him. -
This story just left me speechless in any way and i want to share it. tl;dr at the end.
Im studying computer science in germany and in the first of the small classes i noticed... no, i was disturbed by a guy who would just say that the thing we're learning atm were so easy and the teacher shouldn't even bother to explain it to the class. I don't understand why you would spoile a class that hard... I'm here to learn and listen to the teacher, not to you little asshole. (We were doing basic stuff like binary system etc. but still, let us learn)
So he became unpopular pretty fast.
Fast forward, a few weeks of studying later there was a coding competition where you had to solve different algorithmic problems in a team as fast as possible.
I came there, without a team because my friends aren't interested but I enjoy such tournaments. This guy and me were the only ones without a team and we had to work together.
After him being a total dick for hours i had to watch him code a simple for-loop, that iterates through a sorted array. Nothing special, at this point anyone could do that task in our class so it shouldn't be a problem for him.
He made a simple for-loop and it worked fine, but we figured we had to iterate through the array the other way around.
'Alright', I think. 'Just let the index decr..' 'Pssshhh', he interrupted me and said he knows exactly how to do this.
I was quite impressed when he started to type in 'public int backsort..' in a new line. He tried to resort the array backwards with a quicksort that he then struggled to implement. (Of course we had to implement a quick runtime and we needed that quicksort badly)
I was kind of annoyed but impressed at the same time. I mumbled 'Java has an internal sorting algorithm already' just to amuse myself.
He then used that implementation.
After a few minutes of my pleasure and multiple tests without hitting the requested runtime, i tried to explain to him why we wouldn't need to sort that array backwards and he just couldn't believe it.
I hope that he stays more humble after that..
Also we became last place but thats ok :)
tl;dr: Guy spoiles whole class, brags with his untouchable knowledge (when we do things like binary system). In a competition has to iterate through a sorted array backwards - tries to implement a sorting algorithm to sort it backwards first. I tell him, we could use a already implemented java method. Then tell him we could simply iterate through decreasing the index. Mind-Blown2 -
!rant
Recently I started to be interested in how code actually work. I do a for-loop or an if-statement but how do they actually work at the lowest level.
Another thing I've been interested in is security. I thought about learning how to hack my own systems in order to learn how to write more secure code and keep people out. But I'm a little afraid that as soon as I start look at how to hack, the police will storm through the window and take my computer 😂😂8 -
It was the last year of high school.
We had to submit our final CS homework, so it gets reviewed by someone from the ministry of education and grade it. (think of it as GPA or whatever that is in your country).
Now being me, I really didn’t do much during the whole year, All I did was learning more about C#, more about SQL, and learn from the OGs like thenewboston, derek banas, and of course kudvenkat. (Plus more)
The homework was a C# webform website of whatever theme you like (mostly a web store) that uses MS Access as DB and a C# web service in SOAP. (Don’t ask.)
Part 1/2:
Months have passed, and only had 2 days left to deadline, with nothing on my hand but website sketches, sample projects for ideas, and table schematics.
I went ahead and started to work on it, for 48 hours STRAIGHT.
No breaks, barely ate, family visited and I barely noticed, I was just disconnected from reality.
48 hours passed and finished the project, I was quite satisfied with my it, I followed the right standards from encrypting passwords to verifying emails to implementing SQL queries without the risk of SQL injection, while everyone else followed foot as the teacher taught with plain text passwords and… do I need to continue? You know what I mean here.
Anyway, I went ahead and was like, Ok, lets do one last test run, And proceeded into deleting an Item from my webstore (it was something similar to shopify).
I refreshed. Nothing. Blank page. Just nothing. Nothing is working, at all.
Went ahead to debug almost everywhere, nothing, I’ve gone mad, like REALLY mad and almost lose it, then an hour later of failed debugging attempts I decided to rewrite the whole project from scratch from rebuilding the db, to rewriting the client/backend code and ui, and whatever works just go with it.
Then I noticed a loop block that was going infinite.
NEVER WAIT FOR A DATABASE TO HAVE MINIMUM NUMBER OF ROWS, ALWAYS ASSUME THAT IT HAS NO VALUES. (and if your CPU is 100%, its an infinite loop, a hard lesson learned)
The issue was that I requested 4 or more items from a table, and if it was less it would just loop.
So I went ahead, fixed that and went to sleep.
Part 2/2:
The day has come, the guy from the ministry came in and started reviewing each one of the students homeworks, and of course, some of the projects crashed last minute and straight up stopped working, it's like watching people burning alive.
My turn was up, he came and sat next to me and was like:
Him: Alright make me an account with an email of asd@123.com with a password 123456
Me: … that won't work, got a real email?
Him: What do you mean?
Me: I implemented an email verification system.
Him: … ok … just show me the website.
Me: Alright as you can see here first of all I used mailgun service on a .tk domain in order to send verification emails you know like every single website does, encrypted passwords etc… As you can see this website allows you to sign up as a customer or as a merc…
Him: Good job.
He stood up and moved on.
YOU MOTHERFUCKER.
I WENT THROUGH HELL IN THE PAST 48 HOURS.
AND YOU JUST SAT THERE FOR A MINUTE AND GAVE UP ON REVIEWING MY ENTIRE MASTERPIECE? GO SWIM IN A POOL FULL OF BURNING OIL YOU COUNTLESS PIECE OF SHIT
I got 100/100 in the end, and I kinda feel like shit for going thought all that trouble for just one minute of project review, but hey at least it helped me practice common standards.2 -
There's an angular project at work.
I guess they know about as much about angular as I do (not much)
Because the error page isn't working, so when you get an error, you infinite loop and DDoS yourself.
It actually crashes my (admittedly subpart) desktop.
Guess I'll be learning how to fix that.19 -
After learning a bit about alife I was able to write
another one. It took some false starts
to understand the problem, but afterward I was able to refactor the problem into a sort of alife that measured and carefully tweaked various variables in the simulator, as the algorithm
explored the paramater space. After a few hours of letting the thing run, it successfully returned a remainder of zero on 41.4% of semiprimes tested.
This is the bad boy right here:
tracks[14]
[15, 2731, 52, 144, 41.4]
As they say, "he ain't there yet, but he got the spirit."
A 'track' here is just a collection of critical values and a fitness score that was found given a few million runs. These variables are used as input to a factoring algorithm, attempting to factor
any number you give it. These parameters tune or configure the algorithm to try slightly different things. After some trial runs, the results are stored in the last entry in the list, and the whole process is repeated with slightly different numbers, ones that have been modified
and mutated so we can explore the space of possible parameters.
Naturally this is a bit of a hodgepodge, but the critical thing is that for each configuration of numbers representing a track (and its results), I chose the lowest fitness of three runs.
Meaning hypothetically theres room for improvement with a tweak of the core algorithm, or even modifications or mutations to the
track variables. I have no clue if this scales up to very large semiprime products, so that would be one of the next steps to test.
Fitness also doesn't account for return speed. Some of these may have a lower overall fitness, but might in fact have a lower basis
(the value of 'i' that needs to be found in order for the algorithm to return rem%a == 0) for correctly factoring a semiprime.
The key thing here is that because all the entries generated here are dependent on in an outer loop that specifies [i] must never be greater than a/4 (for whatever the lowest factor generated in this run is), we can potentially push down the value of i further with some modification.
The entire exercise took 2.1735 billion iterations (3-4 hours, wasn't paying attention) to find this particular configuration of variables for the current algorithm, but as before, I suspect I can probably push the fitness value (percentage of semiprimes covered) higher, either with a few
additional parameters, or a modification of the algorithm itself (with a necessary rerun to find another track of equivalent or greater fitness).
I'm starting to bump up to the limit of my resources, I keep hitting the ceiling in my RAD-style write->test->repeat development loop.
I'm primarily using the limited number of identities I know, my gut intuition, combine with looking at the numbers themselves, to deduce relationships as I improve these and other algorithms, instead of relying strictly on memorizing identities like most mathematicians do.
I'm thinking if I want to keep that rapid write->eval loop I'm gonna have to upgrade, or go to a server environment to keep things snappy.
I did find that "jiggling" the parameters after each trial helped to explore the parameter
space better, so I wrote some methods to do just that. But what I wouldn't mind doing
is taking this a bit of a step further, and writing some code to optimize the variables
of the jiggle method itself, by automating the observation of real-time track fitness,
and discarding those changes that lead to the system tending to find tracks with lower fitness.
I'd also like to break up the entire regime into a training vs test set, but for now
the results are pretty promising.
I knew if I kept researching I'd likely find extensions like this. Of course tested on
billions of semiprimes, instead of simply millions, or tested on very large semiprimes, the
effect might disappear, though the more i've tested, and the larger the numbers I've given it,
the more the effect has become prevalent.
Hitko suggested in the earlier thread, based on a simplification, that the original algorithm
was a tautology, but something told me for a change that I got one correct. Without that initial challenge I might have chalked this up to another false start instead of pushing through and making further breakthroughs.
I'd also like to thank all those who followed along, helped, or cheered on the madness:
In no particular order ,demolishun, scor, root, iiii, karlisk, netikras, fast-nop, hazarth, chonky-quiche, Midnight-shcode, nanobot, c0d4, jilano, kescherrant, electrineer, nomad,
vintprox, sariel, lensflare, jeeper.
The original write up for the ideas behind the concept can be found at:
https://devrant.com/rants/7650612/...
If I left your name out, you better speak up, theres only so many invitations to the orgy.
Firecode already says we're past max capacity!5 -
" Under the hood... the program is using a mix of condition-based learning, procedural generation of sentences/questions, and relational queries based on weighted 'topic' identifiers. It can create its own original statements and questions. It is real-time, and it really does 'think' (an internal dialogue feedback loop)." = If Statement
I saw this in the description for an app aclled "Real AI" -
HELP ME I used to conduct Java interviews for junior dev candidates, but since changing jobs three years ago, I've barely had to look at Java at all, and now I've forgotten everything.
Am I stuck in a never-ending loop of learning and relearning everything over and over again for eternity???8 -
v0.0005a (alpha)
- class support added to lua thanks to yonaba.
- rkUIs class created
- new panel class
- added drawing code for panel
- fixed bug where some sides of the UI's border were failing to drawing (line rendering quark)
v0.0014a (alpha) 11.30.2023 (~2 hours)
- successfully retrieving basic data from save folder, load text into lua from files
- added 'props' property to Entity class
- added a props table to control what gets serialized and what doesn't
- added a save() base method for instances (has to be overridden to be useful beyond the basics)
- moved the lume.serialize() call into the :save() method on the base entity class itself
- serialized and successfully saved an entities property table.
- fixed deserializion bugs involving wrong indexes (savedata[1] not savedata[2])
- moved deserialization from temp code, into line loading loop itself (assuming each item is on one line)
- deser'd test data, and init()'d new player Entity using the freshly-loaded data, and displayed the entity sprite
All in all not a bad session. Understanding filing handling and how to interact with the directory system was the biggest hurdle I was worried about for building my tools.
Next steps will be defining some basic UI elements (with overridable draw code), and then loading and initializing the UI from lua or json.
New projects can be set as subfolders folders in appdata, using 'Setidentity("appname/projectname") to keep things clean.
I'm not even dreading writing basic syntax highlighting!
Idea is to dogfood the whole process. UI is in-engine rendered just like you might see with godot, unity, or gamemaker, that way I have maximum flexibility to style it the way I want. I'm familiar enough with constructing from polygons, on top of stenciling, on top of nine-slicing, on top of existing tweening and special effects, that I can achieve exactly what I want.
Idea is to build a really well managed asset pipeline. Stencyl, as 'crappy' as it appeared, and 'for education' was a master class in how to do things the correct way, it was just horribly bloated while doing it.
Logical tilesets that you import, can rearrange through drag-n-drop, assign custom tile shapes to, physics materials, collisions groups, name, add tag data to, all in one editor? Yes please.
Every other 2D editor is basic-bitch, has you importing images, and at most generates different scales and does the slicing for you.
Code editor? Everything behavior was in a component, with custom fields. All your code goes into a list of events, which you can toggle on and off with a proper toggle button, so you can explicitly experiment, instead of commenting shit out (yes git is better, but we're talking solo amateurs here, they're not gonna be using git out the gate unless they already know what they're doing).
Components all have an image assignable to identify them, along with a description field, and they're arranged in a 2d grid for easy browsing, copying, modifying.
The physics shape editor, the animation editor, the map editor, all of it was so bare bones and yet had things others didn't.
I want that, except without the historic ties to flash, without the overhead of java, and with sexier fucking in-engine rendering of the UI and support for modding and in-engine custom tools.
Not really doing it for anyone except myself, and doubt I'll get very far, but since I dropped looking for easy solutions, I've just been powering through all the areas I don't understand and doing the work.
I rediscovered my love of programming after 3-4 years of learning to hate it, and things are looking up.2 -
I am stuck in a loop where I lose confidence in a project and leave it 75% finished (without debugging) while also being doubtful of my skills every time I code and being so demotivated. I have been learning but its a slow process and I keep being lazy about it. I honestly wish I had less stress externally and was able to focus on software engineering more.1
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life becomes sulking when you have no support.
1. bought a new car. finally everything went good and i was able to get out of the infinite loop of anxiety : "where would i park?" "fights with neighbour" , "how to become confident after learning to drive in driving schools?" , efc
2. on delivery day, a friend helped park the new car near home. the plan was that from next day , we will start taking classes on self car with a car trainer
3. this morning, i took a class with car trainer alongside my mom as she wanna learn too. she used to drive somewhat shakily 10 years ago.
She got scared seeing me to drive. i was driving fine as the trainer hmmself didn't scolded me anything. i was driving at 30kmph on empty roads, while she is trained to drive at 10-15kmph. whe she drove, her driving was full of jerks and sudden break/clutch release, but i remained mum
4. later on, one of my friend also rejected going with me for driving. and the car trainer is also citing some time issues for next few days. i am now stuck with:
- a brand new car wrapped under sheets with no future for getting out
- a driving license in my wallet that will keep on taking dust as i would rarely be allowed to ever take my car out for a 60km drive to office.
-some overly anxious parents trying to take out my morale
- a sad me. when will the life give me a chance to fuckin grow up?
i have cracked the IT for fuck's sake. i started from peanuts salary, and worked my way to a great package, i am a person who understands how to live. why the fuck can't i learn this skill5 -
I'm learning Rust as a case study for my own programming language. It's funny how many approaches exist to the humble loop.
- In classic procedural languages, a loop's job is to repeat actions, and as such it provides a multitude of tools to control this repetition.
- In all languages with iterators, a for-in loop is a construct that does something with every element of a collection. In languages with both iterators and generator functions, this can even be used to define a sequence in terms of another.
- In Rust, a loop is an expression that obtains its value through repeated execution. It can also be used like a classic loop, of course, but this is the interesting part.
- My little language is a functional language, so "loop" is the Y combinator. To loop means to define the value of an expression in terms of itself. It's the only looping construct, gets special treatment from the type checker and it's also used in recursive type definitions. -
Deep learning. Working on an image classification problem for a big company. The "boss" ask me to teach an AI to classify images into a few classes.
"Mmm, ok...I just need to create the dataset and then build the AI...so.."
Where is the problem??
The problem is that the classes are so perfectly similar that no one knows how to help me create the dataset and I have to do it alone.
That's how you spend your weeks in a loop where you look at thousands of images over and over just to have something decent start your work.
After that I felt like...
"I'm the hero they deserves, but not the one they need right now" - Cit2 -
Any SUPER AWESOME patient... JS PRO that wants to help me with a few problems it would be appreciated..
Okay so I'm having trouble with JavaScript and this can apply to other languages but for now focus on JS. so I'm learning how to manipulate the DOM and I don't really know how to start I picked out a tutorial but I'm afraid I wont learn a lot from it. here are my concerns and yes they don't all have to do with the DOM
> I don't know how to learn without mimicking what the person is doing and when I try something that's related I cant use the related information and techniques because I either don't remember, dont want to do the literal same thing for something slightly different or dont know how and somethings not working even though it should be.
> I do it one way and when people offer to help its just me getting responses of how it could be done completely different and I dont understand why either way should be used
> Why should I have to generate a webpage or div if I can just use HTML5
>whats the difference between JSON and Arrays???????????
>I am not good with arrays, lists, dictionaries, (I'm stretching to python with lists and dictionaries)
>I recently tried the basic quiz project and it was more complicated and fun than I was giving credit for but I want to do it a different way to show myself I learned but I cant because I dont understand how the person managed to loop through the entire array printing the individual questions and answers to the div. like I understand the parts that use the html tags in the code but I dont know how when or what to use it all
>any good javascript/dom resources?
At this point Im just stressing because all I want is a basic skillset with JS but I dont feel like Im learning anything and I dont know how to apply my knowledge or improve upon the programs ive been learning from or trying to make. and arrays have been tripping me up to especially since I have no clue what the difference is between them and JSON and why I should use one over the other and dont get me started how shit I am with manipulating them. FUCK IM STUPID10 -
In my school, We started learning computer science (Java and programming stuff, to be more specific) last year in 11th standard (I was 16 at that time), starting to learn programming and stuff like this are common in India at that age (Yes, I live in India). I m the only student in my class or in my school who knows about programming and things related to that, yes of course I know, I made my own game when I was around 12 y.o.
In school our teacher started teaching us everything from the most beginning, It was really boring and exciting at the same time for me, it was exciting because I always wanted to tell my teacher and friends about my game and other programming kinds of stuff I knew, and it was boring bcoz I had to learn those things again which I already knew.
It was obvious that I was getting good marks in the subject without even reading my book for once, and it really amazed my friends, classmates and even my teacher.
Now, since my friends have learned CS for 1 year, some of them thinks its nice and are fascinated by the world of programming and developers, and some of them think it's boring and they just need to pass the subject for good marks and nothing else.
It feels funny and bad at the same time when some of my friends come to me and ask what does a for-loop (any loop) even does... And the rest of them thinks a for-loop is just used for printing tables of numbers.
well, that's the story of my school.
The thing that will never change is that I love programming and I will never stop programming...
Thanks for stopping by Ranters,
Happy programming!4 -
Im beginning to think im stuck in an infinite loop of learning. This fucking bullshit never stops. I just continuously keep learning new shit and the more shit i learn the more i realize how much bullshit i still have to learn
It creates an illusion as if i know nothing
Just when i thought i see the end of the horizon and reach it only then i realize it just keeps on going into oblivion, as a sphere
Its like im trying to catch and find a corner of a sphere
There aint none
Its pointless
Is it also pointless to keep learning like this?
Perhaps this whole existence is pointless
Real talk now whats the point of existence bro
No matter what you do or dont do it doesnt matter
No matter if you're successful or not it doesnt matter
No matter if you learn all the bullshit in the world you're still gonna die and it wont matter
No matter how much i learn, it still and will always appear as if its not enough to these shitface recruiters and companies, to them it doesnt matter
Nothing matters. Everything is empty and meaningless. The entire life itself is. I dont value life. I dont care if i live or die. I feel no joy when i succeed and i feel no sadness when i fail
The tiny little bit of joy or success cannot outweight the years of sadness depression emptiness and failure the life has dumped onto me in spite of my hard work and continuous learning
Hhhhhhhhhhhhhhhhhh20 -
Am I the only one who want to learn programming and can't stop overreading about it and other connected stuff?
I feel I'm in deep darkness with my learning. I'm still writing those sample codes from books/video courses and can't motivate myself to come up with a piece of software to write myself.
It's some kind of loop which I can't break and move on.
I quit my electrical engineering studies after two years, to start IT studies, because I felt IT stuff is something I want to do rest of my life. Now, after first semester, I feel I'm in the same place I was before starting IT studies...
I'm lost devRant... Any ideas for helping me changing my life?question hello darkness my old friend lost learning programming halp overreading hilfe electrical engineering help java2 -
So this situation happened a while ago, but I am still pretty angry about it. I am learning Haskell, and it wasn't working, so I asked someone for help. Turns out, he had only been learning how to program for a couple weeks now, and as soon as he saw it, he burst out laughing.
He was making fun of me in the sense that I had only written one line (What?!) OKAY, first off, does this kid know what Haskell can do in one line? Much more than his beloved python, in which, the most complex thing this moron has made was a for loop. And second off, this kid is just like those retarded coworkers and bosses that measure productivity by lines.
I'm not gonna hate the kid because he's learning, but I can see he superiority growing a couple weeks in
God forbid he EVER takes this as a career option, else he may be the most arrogant, annoying human being alive. -
So i was told to make a code to iliterate through some categories from web... And then boss added subcetagories... And sub subcategories... And after a while a sub sub sub sub categories... Code was piling up and boss says "dont worry, you can do it"... So i ended up with a loop within a loop within a loop within a loop... About half a milion combinations... HOW DID YOU BECAME A BOSS WITHOUT LEARNING TO DO MATH BITCH?!2
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SIEM: Security Information and Event Management system
Within a SIEM there is usually a reporting, alerting, and learning framework wherein you perform investigations and threat hunting. Our SIEM is connected to our data lake through a glorified elastic backend.
Today we were figuring out how to get dynamic data that we store in our SIEM to show up in the regular data lake presentation layer. All the solutions only half worked or had barriers to progress that seemed larger than the proposed solution.
So now we're going with the proposed solution: send static data back into the data lake in order to pull it out on the normal frontend with all the enriched info. We're basically turning this thing into a damn feedback loop.
I hate designing solutions within the confines of COTS products. -
I was learning gw basic in school.
Instructor showed us how to draw a circle. I started graphics mode, set red as primary color and gave a loop to the circle, which reduced width at every iteration and turned it into an ellipse.
Woah .... That was the best Opera logo I ever saw