Crow 𓄿
@corvus_ikshana
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Software Engineer || Bioinformatics🧬 || Computational Biology🧪. JavaScript kiddie at NSA Building : Gib me moni
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for last 7 days , I just read about databases.
and decided to build my own simple datastore like redis
why : well I got bored with theory and me don't like getting bored.
me write's code, me get eepy while reading theory
Blog :
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interviewer gives me that idiotic == comparison question , I solve it
says: so you know that === does type checking and == just converts it
I said both do type checking , he says no , I should read more
I just asked, so how do you think it converts types without checking them
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2 minute silence
he thinks and says, they must have some mechanism to do it
I said yes, its called "checking types" , I can show you the algorithm if you want
ohh , you had to see his face, I triggered him hard
Please don't mug up the dff b/w == and === answer from blogs
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was I arrogant about it yes, but why
Those null==undefined types questions are idiotic to ask , its has nothing to do you your skills in js
But if you are asking those questions , buddy be sure to be good at those , cause I am and I really like to play in js interviews
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@DebadreeC
When he said "read up about it , it's basics" with that smug voice
I had made up my mind.
Will shatter every inch of self confidence this guy ever had , that self doubt and imposter syndrome feeling never leaves him.
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A hack that helped a lot in getting internships fairly easy is :
Most biotech libraries just have python api support , so I would just fork the small ones , understand and rewrite them for js support.
No one pays attention to these apart from researchers ,& you get noticed 🐈⬛
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If the load balancer balances the load, then who balances the load of the load balancer? 😦
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wanna solve abundance of CS grads from Indian universities , here:
After Each class , give em a plain text editor , the book and tell em to code what ever concept you just taught them.
algorithms, databases, OS concepts, code them else you fail, And no fucking web frameworks.
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@0likelihood
Interviewer gets the reality check , to never be smug and overconfident about something he does not know shit about
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the YouTube playlists on OS and Compilers have been a net negative.
They give these CS grads perception that they understand them, scoring marks in exam reinforces it.
But give them a book, a IDE, pick any language, and tell them to code a simple compiler ,all give up in a sec.
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Studied mobile computing this sem
So, sim is always connected to nearest cell towers and know your location , store it permanently with IMEI
They can pinpoint your movements from years ago.
They even store your calls
That's how police , narrow suspects, they take your phone
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> Used to hate functional programming.
> Monads , currying, decorators would make brain go round and round 😐
> Realized, its not that I hate it , I just sucked at it , so bitterness
> kept solving questions for 4 days straight , finally the circuits formed, and it clicked hehe
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kek just got paid , 1k ₹ for consultation for 5 min work, fren stuck at laggy frontend page , his ceo angry.
cause : multiple set Intervals executing data rendering functions 😐
Moved functions who took more time to execute than the delay to reqAnimationFrame , smooth 60fps.
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anon if its a bear market and no recruiter is responding to mails.
don't be sad , its the ideal time to make something that you always wanted to make before the rat race.
It does not have to be some big moni SASS.
Something that is fun , silly , with trashy and hacky code.
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Summary of every "how we scaled XYZ or How we handle big number users" podcast
"We used opensource solutions and tools built by actual engineers , who solved all the issues of web well before we build our product"
So we stich things together, and make sure not fuck up that part
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promises and async callbacks as soon as call stack gets freed
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noooo frontend is easy 🤓☝️, I am more of a problem solver 😎.
Really mf, go build a better raster engine that handles scripts, paints bitmap images of changes, handles animations smoothly at 60 fps with no black screen b/w frames.
But I do backend 😟
Shut up api sticher🐈⬛
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Think like a compiler and the code will never surprise you with unexpected behavior.
You don't speak and then run the statement to test if what you spoke made sense.
Read the below things with patience and code them to test 🐈⬛
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System design round for a fresher who made discord clone from YouTube video feels like a technical yapping competition.
The mf who could not even design his own project , is expected to yap about jargons that they learned in 3 days from some playlist.
call it yapping round kek
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when I was offline for while, worked with a senior of my Uni who has a biotech startup
>They makes UTI detection kits and take grants from govt
>Finds out the paper they ripped off , goes to uni lab , 5 hours of trial and error, I have the same thing ready kek
Innovation lol
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The reason carnegie mellon grads are good at it is, cause they build things that they learn in class little by little, you don't learn compiler by watching YouTube playlists
You lean by implementing features that you study in class into code
If you cant , you don't understand it
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I think there are two types of dev, one who likes to build things.
Other who likes to break into stuff , and the industry seems to prefer builders,
If I were to design a interview process it wont be leetcode or project , nah.
Your task is to break into my system , can you ?
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> Building a protein 3d sequence render and annotation tool
> loads and render any pdb file and its sequence
> can annotate & label the of amino acids in 3d sequence and the text seq
Blog :
Github:
Its bit buggy ,math not mathing
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2023 Recap:
- replaced all C.S subjects with biotech once(best decision).
- got kicked out of physics classes(was using twitter)
- banned from biolab , banned from photonics lab.
- made new frens on tooter.
- coded a bit , some fun projects.
- built a glucometer in lab
wbu anon
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I kid you not , these people might be good researchers but they most don't know how to write good software.
It's all bare minimum, whatever works type shabby python scripts.
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Designing Data-Intensive Applications is the self help book of dev's.
once you buy it , always have to make sure everyone knows that you are reading it kek 👀🐈⬛🪚 .
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To many frens wanted to revise javascript topics and question for their interviews , it got hectic.
So built this for all my uni frens.
Youtube tutorials are the 1000 page book that you can't read 2 days before exam
I am the guy you go-to to learn quick , I teach better heh.
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Took mock interview of fren who has been a mern dev for 1.5 years , in JS 😐
Can't write basic functionality in either prototypal or class pattern
Just a bit of nesting of promice api's with setTimeouts & gave up
Don't be a frameworks technician
Do one language but have grip
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>reads about design pattern for few days
>realization hits , most of the modern frameworks are just implementation of a design pattern that gang of four came up with before you were born
Ruby-rails , django , express are based on MVC with just diff language , but pattern is same
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has some worked on wave frequency math based approach to determine best transition points in video editing ?
To sort of maintain the rhythm and continuity of audio between clips
if I make two cuts on a video , then the join should be such that, transition is not offbeat I guess
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mom mom I built my own version control(git) `crowGit`.
its has all commonly used things.
Lol I even wrote those cli functionality for it, yes it
does have those cli commands.
its a simpler version , but it works.
github:
blog :
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If you wanna know if you actually understand any concept on not
Try explaining it to a lay person
And if your mind tries to hide behind big words and jargons , or you try to justify your understanding with a weird mental model that is not consistent with test case
Its a signal
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MongoDB Dev-rel team must be top-tier
Somehow they have convinced all YouTubers to unanimously declare MongoDB as the default database to use for any app
Now that I am regularly using postgress , mongoDb looks sub-standard
Operations so fast , juniors fear "row affected" msg
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While teaching on jskiddies , I came across a lot of people who believe if you write async before a function , that means that whole function definition goes to the event loop queues 😮💨
Result of Too much focus on interview prep playlists , not enough on understanding concepts
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Every web framework tutorial's first video should be about how that framework approaches problems.
To much focus is on syntax , the makers of frameworks had a view on problems, and how they wanted to address them.
Then you would head in with a view on how to use the batteries.
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don't start learning web dev with Next.js/React.
It will cripple your thinking and learning
Its someone else optimized solutions , if you use that you will never come across the problems that they solve.
It takes more time to learn to ride a bicycle with training wheels.
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>Its summer 2023,dis sem has a subject called biosensors.
>Starts reading the handbook on biosensors
> two common patterns
> chemical dipping color change or bombardment with nanoparticle of some freq.
> one is heuristic based, other can be automated
> sadly hab no 3d printer 😐
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Polyfill for all promise api's with intuition + code for interveiws.
After dis , you won't need to watch any 1 hour tutorial.
I am free now on :
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CDN , caching , load balancer , reverse proxy , event bus , dev / prod pipelines , indexing
did you knew if you place stuff near user, it reaches them faster
Also did you knew if server busy , we don't send busy server request, we send less busy one
Also disck slow, ram fast
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Yo I am still alive lol.
Was sick for few days , den exams came by.
Now free
Damn its been so long , what did I miss 😓.
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🚨Molecular Docking : I did it 🫡:
finally I was able to do mol. docking of pantoprazole on proton pump.
I have so much things I wanna share that I learned from this experience.
This thing is crazy, never been this excited about something before.
follow next tweets , don't miss.
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its 04:12 am , finally Time to Live(TTL) feature in crowRedis is working correctly.
a background thread was all that was needed for cleanup.
Don't even remember what was I doing wrong previously .
chugging turmeric milk and Linkin Park helps I guess 👍.
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I was playing with fast Fourier transform algorithm for few days to see what things I can do with it.
so build a discord bot - that does audio's frequency spectrum analysis, and send png's back to bot of visualizations.
github:
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Wtf is this ORM thingy , I thought to try the "current popular thing" , and tf is this abomination
who , why and how does it helps
like how is helping someone by increasing the complexity of already existed sweet raw sql query
This is unreadable , sql was good, why this 😦?
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Algol 60 is one of the most crucial programming language, that laid the foundation of half the concepts that you must have used that no one even knows of lol.
Also JavaScript guy did not made closures or even lexical scope concept, it was a math thing 😐
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Unpopular opinion :
Arrow functions are horrible.
Too much simplicity leads to more complexity.
It takes me more time to read arrow functions based code then simple function declarations.
And add function composition or currying and it's unreadable mess
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uhh so we will use : load balancer, caching , relational DB , scaling , ques , cdn.
we will balance the load using load balancers, and to balance the load of those load balancer, we will have more load balancer , and did I say caching , yes we will cache everything 😃
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Did not knew this existed, but these do not take 30 days, more like 3-4 hours if you know what you are doing.
My more time went into re-reading wtf was even the question was, then to actually solve them.
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Promise api's implementation in JS :
Same questions on leetcode,bfe dev , the core is not that tough , but language of edge cases on bfe dev always confuses me
If I guess async await can be implemented with generators , would lets us control the flow
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tried comp chem first time and have been banging my head since last 3 hours with python and rdkit, Chem libs to generate isomers of compounds.
stupid boomer library cant even write IUPAC names of simple isomers.
don't give pain to my brain cells , me got stupid reeee
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Pov you are the going to change the tech scene of future forever, and you need a dope name that people will remember you for :
> Paypal Mafia
> Gang of four
> Catgirl cartel
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Lol it took senpai just 5-6 mins to scan through it and find all the places where it would cause havoc on the CPU .
he is The senior dev of the cartel, if you are into chips and Core CS , you gotta scroll through their timeline.
my dear e/brother
@corvus_ikshana
wrote a Redis clone from scratch (compatible with the Redis API) in Python
Just by reading and replicating it himself. All one needs is a Linux, internet and curiosity.
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Being a zommer dev , one regret I have is not taking advantage of V-tuber boom of covid.
So many dev's from America & Japan, made shit tone of $ making software infra.
The face tracking tech was already there, intercept the camera feed, map it to model , pipe back the feed
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we offer a competitive salary.
uhh , so who are you competing with 🧐.
cause we both might have different idea of competing salary lol.
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and it ends.
I should just stick to my physics and bio posting from now on.
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yesterday I was able to generate isomer's of some compounds , the input I have 2,3-dichlorobutane in a "SMILE format".
my main focus is on pantoprazole currently.
Those who had GERD or acidic reflux in stomach might have taken this drug.
Its a type of Proton-pump inhibitor.
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ayo , I added the feature of data-replication to crowRedis 🫡.
Now you can run it in either master or worker mode.
any data set by master instance will be replicated to all instances of workers connected to master.
Blog:
github:
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reading
@cto_junior
notes since yesterday, brotha how do you know this much.
Now I have a complex, fuck I have so much to catch up.
Not scared of Codeforces guys , max will stop up after getting into fang.
but bois who read papers from arxiv for fun scare me, mf's don't stop.
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One day am gonna assemble a team of elite genome scientists and engineers in my lab for the Cat girls project.
like the paypal mafia, our team will be called as, the "Cat Girl Cartel" ✌️
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@bissuusingh
My dad always calls me that , didn't knew he was teaching me about load balancers all dis time 😃
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Funny thing is their Sde-2 frontend was trying for requestIdleCallback , I guess he read from mdn.
aww, guess the bootcamp did not teach that you don't run data rendering thing on a background kiddo.
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Dude, I'm telling you, they've created artificial barriers to stop us getting into drug design
Does anyone have any idea about which Small Molecule Inhibitors or any other inhibitor can be used to perform docking studies with a pantoprazole isomer?
Please give PDBQT file😦
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Building a NFC/RFID card reader/cloner(for educational purposes):
-although you can buy a finished one, but building one on a rainy day would be quite fun, also me not hab moni.
-the components are quite cheap on net.
-for detailed version read my
blog:
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while I was sick , did not had to much to do.
So I would teach my frens js , these dumb mf's don't understand closures and lexical scopes.
mf think JS is the first language to have lexical scope or closures.
So to teach these lemurs , building a visualizer.
bit buggy for now
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@cto_junior
If Ambani has stepped in, then it's a sign that the market for GPUs and ML hardware will continue to go up.
gujju dhando bhai has never stepped into a sector that's not gonna give atleast 10x returns.
need to track the chips startups that he gonna invest in.
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Is it true that in Node.js there no lock system for async write operations on same file.
so If I have two async processes that want to write on same file, they can ?.
if yes , why would that be.
cause in Databases & OS its taught that you put a lock if you do a write operation
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😡 ughhhh ,This game will melt my fuse.
The movement animation of players on canvas runs on reqFrameAnimation.
But I want a diff movement on a keypress , and then after sometime it goes back to its normal movement.
But when I do , the velocity of player is adding up 😡, reeee
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If you look in the folder- output_3d_structures_sdf, you will find 3D structures of the 32 stereoisomers of estradiol 🫡 heh.
why estradiol you ask, well you see its a drug that makes you great at programming, its like a magic drink.
how else do you think I got so good 👍.
ayo master , you remember last time when I did molecular docking and I had to do everything manually via multiple software's.
so I automated every-single one of those things via python scripts and some sub-processes.
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ayo master , you remember last time when I did molecular docking and I had to do everything manually via multiple software's.
so I automated every-single one of those things via python scripts and some sub-processes.
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And did you knew if you directly send http request directly to server , and that server died, request gone, people mad , so we store requests also.
So kafka.
And how did I forget, distributed system , parallels processing , concurrency , multi threading 😾
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Wrote this long time ago , but didn't publish.
tech community use this terminology as a comeback.
Someone writes a thread with 🧵👈 emoji about info that is common knowledge , write "shut up database".
so let me ask you anon , what are you:
are you a optimal or a database 😶
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Also this is not for those who are on advance lvl , but for someone like me who wants to learn from grounds up.
everyone starts from simple only.
but I am a ego maniac, and I will catch you soon :3.
and yeah I know the code does not have modules, chill I will fix everything.
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@dejavucoder
so they finally sent an insider to keep an eye on the Indian guy who costs them this much moni on DALL-E bills.
the ops are after you Sankalp 👀
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We had bureaucrats and some NGO people at University conference all clapping for this rip of platic toy.
normies when they see strip color change go oogabooga crazy.
chemical reacts so strip color change 🤯
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I mean fft is used to make frequency points graph to identify music(shazam)
So I guess, cant we use fft or DFT to sort of know what are the transitions points in a clip that align
In theory it makes sense, but I don't know if it practice it would work as intended
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wait a sec , so white blood cells don't like foreigners coming in.
They gets to duty the moment a "foreign" body tried to enter their territory.
I have seen this story played before 🧐
WBC the moment someone enter in:
Who let you in boi , free loader bitch ass boi.
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Nyaa :3, tried my hands at making a game first time
Uses existing rules of Rock paper
Type the player and grid name , and you get teleported there , to either attack or escape
I liked the experience , read fun math equations , new concept I never knew
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when I move my mouse , that raw data must be in some buffer, so can I save a copy of that buffer of certain period.
Then I guess I would need to write some program to load that buffer again , and make OS take it to device drivers and re-enact the raw data operations.
allowed ?
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A good faraday cage will stop that.
Now that I think, every electronic device has a permanent address attached to it, mac address, IMEI, the wifi also has a permanent address.
but is there something, that lets the signals come in, but wont let then reflect back.
one way cage ?
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Spotify does not make sense to me.
If you wanna explore new music , YouTube is best.
You will never stumble upon the great music with 100 views, that is absolute bombshell on Spotify.
Imagine installing that bloatware app, to listen to something that is already on YouTube 😐
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@tszzl
Intelligence if overrated.
life is enjoyable when head empty.
me and my homies grind rocks and ignite fire for fun.
in childhood my most fav thing to do was, to throw a rock then follow it , and then again throw it and repeat.
no depression nothing.
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Moi working on smol game ,need help
I use 2 nested loops to loop over the players of user and enemy side
For each i and j , I run detectCollision()
All this in reqAnimationframe
So for each repaint , it loops over all player combinations
cpu goes brrrr n zooooo on scrolls 😔
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huh so CPU does subtraction in order to do division , I mean it makes sense when I think.
also can you write a algorithm or formula that can tell how many steps it would take to do a division , prior to doing the division operations😶.
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If I were to hire devs, your task would be to get into my system.
It could be a website, a desktop app, a android app , anything.
pick your language, understand the architecture of the system and try to break into my system.
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Not only did I learned about database, I re-leaned how does a request work from the basic.
You have to see the questions I asked chat-gpt while studying 🫡.
every time I ask chat-gpt some questions , it thinks internally : nah not this dude again.
Well time to touch some grass.
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Then you would need to mug up the answers for questions about virtual dom or react lifecycle.
If you have not spent time working with actual dom , and what was the problem with it that they came up with virtual dom.
You won't visualize what is happening to each component
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one day I will become expert in genomics and CRISPER to solve the biggest problem facing humanity.
gonna edit DNA to make cat-girls🥰
I pledge that all the rust programmers will get a cat-girl GF, will sit on your lap while you code on VIM and destroy prod.
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@pushkar1713
read this 2 times-
3-4 article a day , and try to solve questions at the end of each module.
, from here only watch tutorials of the guy -Will Sentence ,leave rest.
He is the only guy whose paid tutorial I would recommend anyone
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jesse we are cocking something 🫡
its 3'd view of this proton pump -
ay master , I am mad scientist ! , its so cool, sunuvabich ✌️
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so we keep our human bodies entropy low by eating food and increasing the entropy of our surroundings.
so that would mean death is a sort of increase in entropy in our body.
also , if universes entropy is always increasing then will it just crumble like the human body ,ehh
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If I had one more sem left at Uni , the onli thing I would do in the labs is , use the diff spectrophotometer on diff plants or animal parts.
upload results in database with all observation , before and after.
I call them the "Wave Trigger Systems" .
not limited to just light
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-random thoughts(its happening again):
So Human creativity can be viewed as the process of reducing entropy in our thinking.
as the arrow of time points from a state of low entropy to higher entropy, showing that systems naturally tend to become more disordered over time.
but
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Glucometer circuit diagram with chemical's that would be found in labs.
Lets see if I can improve something in it and call my self a "Engineer" for once.
part-1
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