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Search - "dig in source"
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LONG RANT AHEAD!
In my workplace (dev company) I am the only dev using Linux on my workstation. I joined project XX, a senior dev onboarded me. Downloaded the code, built the source, launched the app,.. BAM - an exception in catalina.out. ORM framework failed to map something.
mvn clean && mvn install
same thing happens again. I address this incident to sr dev and response is "well.... it works on my machine and has worked for all other devs. It must be your environment issue. Prolly linux is to blame?" So I spend another hour trying to dig up the bug. Narrowed it down to a single datamodel with ORM mapping annotation looking somewhat off. Fixed it.
mvn clean && mvn install
the app now works perfectly. Apparently this bug has been in the codebase for years and Windows used to mask it somehow w/o throwing an exception. God knows what undefined behaviour was happening in the background...
Months fly by and I'm invited to join another project. Sounds really cool! I get accesses, checkout the code, build it (after crossing the hell of VPNs on Linux). Run component 1/4 -- all goocy. run component 2,3/4 -- looks perfect. Run component 4/4 -- BAM: LinkageError. Turns out there is something wrong with OSGi dependencies as ClassLoader attempts to load the same class twice, from 2 different sources. Coworkers with Windows and MACs have never seen this kind of exception and lead dev replies with "I think you should use a normal environment for work rather than playing with your Linux". Wtf... It's java. Every env is "normal env" for JVM! I do some digging. One day passes by.. second one.. third.. the weekend.. The next Friday comes and I still haven't succeeded to launch component #4. Eventually I give up (since I cannot charge a client for a week I spent trying to set up my env) and walk away from that project. Ever since this LinkageError was always in my mind, for some reason I could not let it go. It was driving me CRAZY! So half a year passes by and one of the project devs gets a new MB pro. 2 days later I get a PM: "umm.. were you the one who used to get LinkageError while starting component #4 up?". You guys have NO IDEA how happy his message made me. I mean... I was frickin HIGH: all smiling, singing, even dancing behind my desk!! Apparently the guy had the same problem I did. Except he was familiar with the project quite well. It took 3 more days for him to figure out what was wrong and fix it. And it indeed was an error in the project -- not my "abnormal Linux env"! And again for some hell knows what reason Windows was masking a mistake in the codebase and not popping an error where it must have popped. Linux on the other hand found the error and crashed the app immediatelly so the product would not be shipped with God knows what bugs...
I do not mean to bring up a flame war or smth, but It's obvious I've kind of saved 2 projects from "undefined magical behaviour" by just using Linux. I guess what I really wanted to say is that no matter how good dev you are, whether you are a sr, lead or chief dev, if your coworker (let it be another sr or a jr dev) says he gets an error and YOU cannot figure out what the heck is wrong, you should not blame the dev or an environment w/o knowing it for a fact. If something is not working - figure out the WHATs and WHYs first. Analyze, compare data to other envs,... Not only you will help a new guy to join your team but also you'll learn something new. And in some cases something crucial, e.g. a serious messup in the codebase.11 -
Read source code and unit tests. Don’t bother documentation cause it’s outdated. Dig into the core, look where data goes in and where it gets out. Everything else is just a wrapper.6
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Recently I launched the minimalistic online drawing app https://okso.app. I wanted it to be a place where people could do fast, ad-hoc, napkin-based-like explanations of any concept as if you are sitting with your friend and trying to explain him/her something during lunch. Don't ask me why it is needed, I was just experimenting.
So, the first concept I've tried to explain with sketches was the Data Structures. Without further ado, here is the interactive ✍🏻 https://okso.app/showcase/... showcase that you may play with.
Of course, not all data structures are covered. And of course, this is not comprehensive material, but rather a cheatsheet that would create visual hints and associations for the following data structures:
- Linked List
- Doubly Linked List
- Queue
- Stack
- Hash Table (with hash collision resolution)
- Tree (including the Binary Search Tree)
- Heap (including Mean Heap and Max Heap)
- Trie
- Graph
Each box on the sketch is clickable, so you may dig into the data structure you're interested. For example `Heap → Max Heap`, or `Heap → Min Heap`, or `Heap → Array Representation`.
The sketches are split into so-called Pages just to make it easier to grasp them, so the users stay focused on one concept at a time, they see the relationship between the concept, and thus, hopefully, they are not getting overwhelmed with seeing a lot of information at the same time on one drawing/page.
Each page has a link to the source-code examples that are implementing the data structure on JavaScript.
The full list you may find in the ✍🏻 https://okso.app/showcase/... showcase.
I hope you find this showcase useful and I hope it will be a good visual cheatsheet-like complement to your data structure knowledge.12 -
Not only is the documentation only in Chinese, but also the labels used in the components are. 🤦♂️🤦♂️🤦♂️
Oh well time to get my hands dirty.3 -
College is worse than cancer.
Worse than tumor.
Worse than any (un)imaginable death or torture.
I feel dull.
I feel DUMBED DOWN.
I FEEL DUMBER AFTER 6 YEARS OF COLLEGE COMPARED TO BEFORE STARTING COLLEGE.
6 fucking years of wrecking my healthy brain in college.
Has now became unhealthy and mentally unstable.
I forgot almost EVERYTHING i knew about coding.
Because in a "COMPUTER SCIENCE" college they teach everything BUT coding.
The professors and assistants have no morals.
They are INHUMANE.
Professors are ready to walk across a fucking corpse.
If your mother gets cancer and you are unable to come to class or study, the professors dont give a FUCK, they will drop you down so you have to study for exams again instead of helping your ill mother.
Professors have NO COMPASSION.
NO DIGNITY.
They are just BRAINLESS robots.
Sentients, agents working for the matrix.
They keep reading the same script every year and call that a successful career.
IF PROFESSORS AND ASSISTANTS AT COLLEGE ACTUALLY KNEW TO DO ANYTHING USEFUL IN LIFE, THEY WOULD NOT BE PROFESSORS AND ASSISTANTS FOR THE MAJORITY (OR WHOLE) OF THEIR LIFE.
I gave my maximum effort.
I SACRIFICED MY LIFE FOR SCHOOL.
Just to end up with school spitting on my face.
I feel DUMBED down.
Robotic.
Procedural minded.
As some brainless retard who has to follow orders as if im a 6 year old who doesn't know what to do.
Like a computer.
Because of college - i have no will to live.
Because of college - i no longer have passion for coding.
Because of college - i no longer know what is my purpose in life.
Because of college - i feel like im floating in cosmos, somewhere far deep into the space, without knowing where im going, what im doing, why im doing what im doing...
I feel void inside me.
I also feel vengeance inside me.
SCHOOL HAS RUINED MY LIFE.
It made me mentally insane.
It made me mentally so sick that i had to watch head decapitation gore videos to calm myself down, so i can imagine the victims being murdered are the professors and assistants from my college.
PROFESSORS AND ASSISTANTS HAVE 0 UNDERSTANDING FOR OTHER HUMAN LIFE.
MILLIONS of people have private problems going on in their lives every day.
What if someone cant pass an exam because of private problems that's going on in their life?
What if the student is abused by a family member?
What if the student has ANY non-self destructive negative event happening to them, which they're not at fault, and can not control?
What if the student got cancer and cant study for exams, is he supposed to fail?
What if the student came home and the police knocked on his door and said "sorry for your loss, your whole family just died in car accident" and student falls into depression and cant study for exams, is he supposed to fail???
There are infinite multitude of random events this damned universe can do to a human life.
BUT PROFESSORS AND ASSISTANTS;
DO
NOT
GIVE
A
FUCK.
I feel soulless.
I feel like i signed a contract with the devil when i started college by selling him my soul.
School (when i say school, i also mean college, because its the same fucking shit under a different name) is supposed to represent "education".
Lets talk about it.
What exactly are we being "EDUCATED" in school?
To memorize pdf slides?
Memorize textbook?
Memorize notes?
Memorize formulas?
Memorize memorize memorize???
First of all, all of what we're "studying" is BULLSHIT, second of all MEMORIZING all of this means you're gonna forget 60% of it tomorrow, 80% in the next 2 days and you'll forget 100% of what you "learned" by the 7th day.
SOCIETY TOLD YOU TO MEMORIZE USELESS BULLSHIT AND TOLD YOU THAT YOU'RE BEING EDUCATED THAT WAY. YOU MUST BE FUCKING DUMB TO BELIEVE THAT.
If memorizing == education, then i do NOT want to be a part of this "education".
BEFORE starting college i coded many projects.
I self-learned everything.
6 years of college and it taught me LESS THAN ZERO.
NOT EVEN ZERO.
LESS THAN ZERO because i got dumbed down, below the underground, and had to dig myself up on the surface.
I built software for an american real estate agency and sold it for 5 figures.
I built software for 3 people from New York for another 5 figures.
I even got offers to work in local software companies without having a degree.
At internship i was given a task to finish in 2 weeks. I finished it in 3 days. They were shocked and wanted to hire me for further work.
At another internship there was 4 of us working together as a team. At the end company contacted only ME and told me i showed the best results on their list out of ALL the teams and the team members that were with me.
Ever since i had to study for disgusting college i had to stop working.
Because of college, i have no source of income for MONTHS now.
Because of college, i had several mental breakdowns.
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To all professors and assistants:
I pray that karma ruins your life with lethal outcome, and your kids die of cancer in pain.9 -
I started my career 7 years back (at the same company I am currently working) as an Asp.net developer. My company used to work in Microsoft domains back then. 5 years back one of our directors decided to dig into the open-source technologies and move away from Microsoft. And I was the first employee who was assigned to learn python. I thought about switching the company so that my 2 years of asp.net experience doesn't go waste. But I didn't as I started liking python. It was easy, powerful, clean, and same code ran on every fucking platform. And I was introduced to open-source.
Don't know best or worst, but this decision definitely changed my view about software development. I understood that money is not everything, passion is also important. The open-source community runs on passion and dedication. And I love the way it works. The bottom line is, I am happy. And python is beautiful. -
It's was the forth year of my college, in the corner of the world in south India, I wanted to something to combine both medicine and the coding that I learnt, I started learning about heart murmurs, it's basically a skill based diagnosis that only 1 in 20 heart specialists can make by hearing the heart beat and listening to a small murmur that happens during the systolic cycle or the diastolic cycle. I wrote a program to learn a lot of sample murmurs and try to find (very bad hand made logic) the similarities between two wave patterns, the problem started with noise so I went out and built a new stethoscope with a carbon mic inside a normal stethoscope head and try filtering the sound at source (worked well enough at that time) I then tried to find people to test it on, but alas I was not able to find patients as doctors are not supposed to reveal them etc. I wanted to show them visually how a murmur pattern would look like and I stole some code and made a plotter for the wav file and presented everything. By that time I got a lot of close amazing friends involved and they helped me solidify the project and we won the best project award and I got my first gold medal of my life at the end of my academic life :) it was one of the best moments of my life. Second only to the joy of getting married to wife. May be third if I put getting a job in Microsoft India Development Center.
I still wish I could dig that code up and write it properly with what I have learnt today but work is never ending and I find great problems to solve everyday which I know I can make a difference, may be when I get retired I will dust out that CD with the decades old c++ code and write one last program...3 -
Not really coding, but debugging complex problems. I love it when I have to dive in head-first and dig (very) deep to find answers to super-complex problems. I once went into the internals of a programming language to understand why a library was acting up in a particular scenario. Another time I had to optimize and re-compile from source (after modifying it) so that the application would not leak its memory. (Of course, I contributed it back to the language).
The inner satisfaction that you get after all that hard-work when it finally works, pays off! Bliss!1 -
This was at my first job, a site that sold magazine subscriptions during the dot com boom.
Times got rough during the bust. First sign, free snacks disappeared. Everyone started worrying, and checking fuckedcompany.com to see if we were on it. One day everyone's machines shut down, and someone walks around saying company meeting in the cafeteria. My Russian coworker asks if I have a screwdriver so he can liberate his hard drive. Go to the meeting. Most of the company is being laid off immediately. You have to hang around having interviews with your boss to see if you still have a job. I don't.
2 weeks later they call and ask if I'd like to come back. Turns out trying to run with 1 programmer wasn't working out for them. I go back.
First problem we try to tackle - the shopping cart is slow. We put in a hack SQL file to delete carts older than 1 week. Gets better. Then gets slower again. Rinse and repeat 2 times. Finally digging through the source in the perl folder (not what the main site was in) we find what scheduled job was supposed to do this. Dig in. What do we find out? sa_scheduled_tasks user account was deactivated, because only user accounts belonging to people who still had a job were left active.
Fuuuuuuuuuuuck. -
Started porting one application written in php to:
Golang(and some libraries to make certain sht simpler like GORM and Gorilla amongst a couple of others, most shit is STD shit already built in)
Java Spring(I know it well, but wanted to try this particular app in it, lots of boilerplate although the coded is solid AF)
.NET Core API, which I separated in a series of modules for the domain interface, the persistence logic, the actual api etc, I really dig it. It has a basic React frontend in Typescript whereas the other 2 versions are using the standard Go html/template package and the Twig interface for Spring.
My favorite thus far is Golang. I find it extremely easy to extend, the language reads good enough for a retard like myself to make sense of it fairly easy, really easy to test and experiment with it, any idea I get for something to add(say users and stuff) took me less than 30 mins to figure out while reading the actual documentation, as in the base documentation or just the source code.
I know the language is retard proof, and I am highly enjoying this. Not to say that the other two are bad, not at all, been using C# and Java for years now, but I highly appreciate being able to concentrate on functionality rather than all the fucking architectural boilerplate needed to run basic shit in the other two frameworks. Thus far Golang has been a breath of fresh air the likes Clojure gives me, while not even being a profound or mind blowing language in terms of features(since other than the interface{} and goroutines i can't think of shit) and have not reached a scenario in which I am stuck or dying to have generics one bit for the overall business logic.
The app is growing like crazy in terms of code since the original php application was huge to begin with, but dear me this shit is as simple as it can get without being too technical. Might move it to production once all usability tests pass and force the rest of the staff to learn it. I have one lead dev that damn near refuses to touch anything other than php, and a very eager to try shit out content administrator that comes from a Java and C# background.
all I want to say is how much I love go haha4 -
Long post, TLDR: Given a large team building large enterprise apps with many parts (mini-projects/processes), how do you reduce the bus-factor and the # of Brent's (Phoenix Project)?
# The detailed version #
We have a lot of people making changes, building in new processes to support new flows or changes in the requirements and data.
But we also have to support these except when it gets into Production there is little information to quickly understand:
- how it works
- what it does/supposed to do
- what the inputs and dependencies are
So often times, if there's an issue, I have to reverse engineer whatever logic I can find out of a huge mess.
I guess the saying goes: the only people that know how it works is whoever wrote it and God.
I'm a senior dev but i spend a lot of time digging thru source code and PROD issues to figure out why ... is broken and how to maybe fix it.
I think in Agile there's supposed to be artifacts during development but never seen em.
Personally whenever i work on a new project, I write down notes and create design diagrams so i can confirm things and have easy to use references while working.
I don't think anyone else does that. And afterwards, I don't have anywhere to put it/share it. There is no central repo for this stuff other than our Wiki but for the most part, is like a dumping ground. You have to dig for information and hoping there's something useful.
And when people leave, information is lost forever and well... we hire a lot of monkeys... so again I feel a lot of times i m trying to recover information from a corrupted hard drive...
The only way real information is transferred is thru word of mouth, special knowledge transfer sessions.
Ideally I would like anything that goes into PROD to have design docs as well as usage instructions in order for anyone to be able to quickly pick it up as needed but I'm not sure if that's realistic.
Even unit tests don't seem to help much as they just test specific functions but don't give much detail about how a whole process is supposed to work.9 -
Recently I've been noticing bugs in software products I use and I can't help but report them! For open-source software I sometimes even try to dig around the source code, out of curiosity.