Yesterday: Senior dev messages out a screenshot of someone using an extension method I wrote (he didn’t know I wrote it)..

SeniorDev: “OMG…that has to be the stupidest thing I ever saw.”
Me: “Stupid? Why?”
SeniorDev: “Why are they having to check the value from the database to see if it’s DBNull and if it is, return null. The database value is already null. So stupid.”
Me: “DBNull is not null, it has a value. When you call the .ToString, it returns an empty string.”
SeniorDev: ”No it doesn’t, it returns null.”
<oh no he didn’t….the smack down begins>
Me: “Really? Are you sure?”
SeniorDev: “Yes! And if the developer bothered to write any unit tests, he would have known.”
Me: “Unit tests? Why do you assume there aren’t any unit tests? Did you look?”
<at this moment, couple other devs take off their head phones and turn around>
SeniorDev:”Well…uh…I just assumed there aren’t because this is an obvious use case. If there was a test, it would have failed.”
Me: “Well, let’s take a look..”
<open up the test project…navigate to the specific use case>
Me: “Yep, there it is. DBNull.Value.ToString does not return a Null value.”
SeniorDev: “Huh? Must be a new feature of C#. Anyway, if the developers wrote their code correctly, they wouldn’t have to use those extension methods. It’s a mess.”
<trying really hard not drop the F-Bomb or two>
Me: “Couple of years ago the DBAs changed the data access standard so any nullable values would always default to null. So no empty strings, zeros, negative values to indicate a non-value. Downside was now the developers couldn’t assume the value returned the expected data type. What they ended up writing was a lot of code to check the value if it was DBNull. Lots of variations of ‘if …’ , ternary operators, some creative lamda expressions, which led to unexpected behavior in the user interface. Developers blamed the DBAs, DBAs blamed the developers. Remember, Tom and DBA-Sam almost got into a fist fight over it.”
SeniorDev: “Oh…yea…but that’s a management problem, not a programming problem.”
Me: “Probably, but since the developers starting using the extension methods, bug tickets related to mis-matched data has nearly disappeared. When was the last time you saw DBA-Sam complain about the developers?”
SeniorDev: “I guess not for a while, but it’s still no excuse.”
Me: “Excuse? Excuse for what?”
<couple of awkward seconds of silence>
SeniorDev: “Hey, did you guys see the video of the guy punching the kangaroo? It’s hilarious…here, check this out.. ”

Pin shoulders the mat…1 2 3….I win.

Hey everyone! As many of you have already seen, @trogus and I are happy to announce the release of devRant++, also know as the devRant supporter program!

devRant++ is a monthly subscription ($1.99 USD) that gives you some cool extra features while also contributing to covering some of our ever-increasing server costs.

Subscribers get:
- a badge that shows up on all of their rants and comments
- ability to edit rants and comments for up to 30 minutes (instead of the usual 5)
- ability to post unlimited collabs for free (so keep an eye out for new collabs, hopefully!)
- a reserved spot on the devRant++ supporter list (you can only move up higher or stay in the same position through the life of your subscription)
- more benefits coming soon!

Why did devRant++ come to be? Basically, we have the most awesome community members and we kept getting extremely generous requests from members asking how they could help devRant stay afloat. Instead of taking donations and not giving anything directly in return, we wanted to give supporters a little extra something to hopefully make the program kind of special.

We greatly appreciate everyone who has joined the supporter program so far. We also realize not everyone has the money to spend or wants to spend, and that's perfectly fine. We also greatly appreciate everyone here who posts great rants and comments, helps spread the word about devRant, votes on stuff, or is just a valuable member of the community in general. @trogus and I value all contributions and we want to make that clear!

Another reason we decided to go ahead with the program is, as I mentioned towards the beginning, our server/technology costs are increasing and we're kind of at a point where we can't afford all of the upgrades we'd like to make. At the same time while we need more hardware, we're trying to get the app to a place where we're not losing money every month, hopefully to the point where we can break even soon.

Anyway, thank you to everyone again for the amazing support and early interest in devRant++. We would love to hear feedback and stuff you would like to see added to supporter benefits, so just let us know!

Logic Gem found at work today.

if (value != null) {
return value;
} else {
return null;
}

😂 😂😂😂😂😂

The GET /users endpoint will return a page of the first 13 users by default.

To request other pages, add |-separated querystring with the limit and offset, as roman numerals enclosed in double quotation marks. Response status is always equal to 200, plus the total count of the resource, or zero when there's an error.

You can include an array of friends of the user in the result by setting the request header "friends" to the base64-encoded value of the single white pixel png.

Other metadata is not included by default in responses, but can be requested by appending ?meta.json to any endpoint, which will return an xml response.

If you want to update the user's profile picture, you can request an OAuth token per fax machine, followed by a pigeon POST capsule containing a filename and a rolled up Polaroid picture. The status code attached to the return postal dove will be the decimal ASCII code for a happy smiley on success, and a sad smiley if any field fails form validation.

-- Every single external REST API I've ever worked with.

The worst Code I saw was

if (value != null ) {
return value;
} else {
return null;
}

I was suppose to review this code.

if (null != value) {
return value;
} else {
return null;
}

Python. Changed a function to return a tuple instead of one value in some database code. Tests pass, gets deployed, everything works. End of the month comes. Suddenly, we get a report that we're draining people's bank accounts and credit cards.

It turns out there was an untested bit of code inside the billing process that used this function. It used the function that was changed. To make matters worse, when the exception was thrown, the billing had already completed successfully, and due to another unrelated bug it would retry despite this.

So, needless to say, type safety and good unit tests are things I prioritize nowadays.

A coworker was working on some code and wrote two return statements and asked a senior developer why the second value wasn't being returned.

I'm so fucking done with all those "woke" YouTube programming tutorials like: "Why you should NEVER use else statements", "Why functions should ALWAYS return a value", "Why switch statements are actually EVIL" and stuff like this
I swear to fucking god

Most hated language features?

PL/SQL:
• it exists

XSLT:
• it also exists

PHP:
• it still exists.

VB:
• Significant parentheses: `subName` calls the subroutine, and `subName()` calls the subroutine and gets a return value. If you use the wrong invocation, it yells at you. Why!?
• For reasons unknown, you can only have `sleep` appear once per codebase. (So put it in a function!)

Ruby:
• It’s bloody easy to write code with absolute shit performance, and it kind of feels encouraged because of just how easy Ruby makes everything. Less critical thinking means worse performance, and Ruby’s blissful elegance encourages mental laziness.
• Minor: You cannot pass a hash as the first method parameter without enclosing it in parentheses, ex:`method({key: value})`. This is due to the ambiguous case between passing a hash argument and a (curly) block/proc (`method {|args| code}`). This could be remedied pretty easily with a little bit of look ahead.
• Minor: There is no `elsif` for `unless` (a negated if). Why? No reason given.

Python:
• no block endings, so nested code can be extremely difficult to follow.

Bash:
• The freaking syntax oh god why.

All languages:
• rand vs rand() vs Rand vs Rand() vs rnd vs RND vs random() vs random vs randInt() vs Math.random() vs Math.randInt() vs ...

I wrote a database migration to add a column to a table and populated that column upon record creation.
But the code is so freaking convoluted that it took me four days of clawing my eyes out to manage this.
BUT IT'S FINALLY DONE.
FREAKING YAY.

Why so long, you ask? Just how convoluted could this possibly be? Follow my lead ~

There's an API to create a gift. (Possibly more; I have no bloody clue.)
I needed the mobile dev contractor to tell me which APIs he uses because there are lots of unused ones, and no reasoning to their naming, nor comments telling me what they do.

This API takes the supplied gift params, cherry-picks a few bits of useful data out (by passing both hashes by reference to several methods), replaces a couple of them with lookups / class instances (more pass-by-reference nonsense). After all of this, it logs the resulting (and very different) mess, and happily declares it the original supplied params. Utterly useless for basically everything, and so very wrong.

It then uses this data to call GiftSale#create, which returns an instance of GiftSale (that's actually a Gift; more on that soon).

GiftSale inherits from Gift, and redefines three of its methods.

GiftSale#create performs a lot of validations / data massaging, some by reference, some not. It uses `super` to call Gift#create which actually maps to the constructor Gift#initialize.

Gift#initialize calls Gift#pre_init (passing the data by reference again), which does nothing and returns null. But remember: GiftSale inherits from Gift, meaning GiftSale#pre_init supersedes Gift#pre_init, so that one is called instead. GiftSale#pre_init returns a Stripe charge object upon success, or a Gift (and a log entry containing '500 Internal') upon failure. But this is irrelevant because the return value is never actually used. Pass by reference, remember? I didn't.

We're now back at Gift#initialize, Rails finally creates a Gift object using the args modified [mostly] in-place by all of the above.

Another step back and we're at GiftSale#create again. This method returns either the shiny new Gift object or an error string (???), and the API logic branches on its type. For further confusion: not all of the method's returns are explicit, and those implicit return values are nested three levels deep. (In Ruby, a method will return the last executed line's return value automatically, allowing e.g. `def add(a,b); a+b; end`)

So, to summarize: GiftSale#create jumps back and forth between Gift five times before finally creating a Gift instance, and each jump further modifies the supplied params in-place.

Also. There are no rescue/catch blocks, meaning any issue with any of the above results in a 500. (A real 500, not a fake 500 like last time. A real 500, with tragic consequences.)

If you're having trouble following the above... yep! That's why it took FOUR FREAKING DAYS! I had no tests, no documentation, no already-built way of testing the API, and no idea what data to send it. especially considering it requires data from Stripe. It also requires an active session token + user data, and I likewise had no login API tests, documentation, logging, no idea how to create a user ... fucking hell, it's a mess.)

Also, and quite confusingly:
There's a class for GiftSale, but there's no table for it.
Gift and GiftSale are completely interchangeable except for their #create methods.

So, why does GiftSale exist?
I have no bloody idea.
All it seems to do is make everything far more complicated than it needs to be.

Anyway. My total commit?
Six lines.
IN FOUR FUCKING DAYS!

AHSKJGHALSKHGLKAHDSGJKASGH.

POSTMORTEM

"4096 bit ~ 96 hours is what he said.

IDK why, but when he took the challenge, he posted that it'd take 36 hours"

As @cbsa wrote, and nitwhiz wrote "but the statement was that op's i3 did it in 11 hours. So there must be a result already, which can be verified?"

I added time because I was in the middle of a port involving ArbFloat so I could get arbitrary precision. I had a crude desmos graph doing projections on what I'd already factored in order to get an idea of how long it'd take to do larger
bit lengths

@p100sch speculated on the walked back time, and overstating the rig capabilities. Instead I spent a lot of time trying to get it 'just-so'.
Worse, because I had to resort to "Decimal" in python (and am currently experimenting with the same in Julia), both of which are immutable types, the GC was taking > 25% of the cpu time.

Performancewise, the numbers I cited in the actual thread, as of this time:
largest product factored was 32bit, 1855526741 * 2163967087, took 1116.111s in python.
Julia build used a slightly different method, & managed to factor a 27 bit number, 103147223 * 88789957 in 20.9s,
but this wasn't typical.

What surprised me was the variability. One bit length could take 100s or a couple thousand seconds even, and a product that was 1-2 bits longer could return a result in under a minute, sometimes in seconds.

This started cropping up, ironically, right after I posted the thread, whats a man to do?

So I started trying a bunch of things, some of which worked. Shameless as I am, I accepted the challenge. Things weren't perfect but it was going well enough. At that point I hadn't slept in 30~ hours so when I thought I had it I let it run and went to bed. 5 AM comes, I check the program. Still calculating, and way overshot. Fuuuuuuccc...
So here we are now and it's say to safe the worlds not gonna burn if I explain it seeing as it doesn't work, or at least only some of the time.

Others people, much smarter than me, mentioned it may be a means of finding more secure pairs, and maybe so, I'm not familiar enough to know.

For everyone that followed, commented, those who contributed, even the doubters who kept a sanity check on this without whom this would have been an even bigger embarassement, and the people with their pins and tactical dots, thanks.

So here it is.
A few assumptions first.
Assuming p = the product,
a = some prime,
b = another prime,
and r = a/b (where a is smaller than b)
w = 1/sqrt(p)
(also experimented with w = 1/sqrt(p)*2 but I kept overshooting my a very small margin)

x = a/p
y = b/p

1. for every two numbers, there is a ratio (r) that you can search for among the decimals, starting at 1.0, counting down. You can use this to find the original factors e.x. p*r=n, p/n=m (assuming the product has only two factors), instead of having to do a sieve.

2. You don't need the first number you find to be the precise value of a factor (we're doing floating point math), a large subset of decimal values for the value of a or b will naturally 'fall' into the value of a (or b) + some fractional number, which is lost. Some of you will object, "But if thats wrong, your result will be wrong!" but hear me out.

3. You round for the first factor 'found', and from there, you take the result and do p/a to get b. If 'a' is actually a factor of p, then mod(b, 1) == 0, and then naturally, a*b SHOULD equal p.
If not, you throw out both numbers, rinse and repeat.

Now I knew this this could be faster. Realized the finer the representation, the less important the fractional digits further right in the number were, it was just a matter of how much precision I could AFFORD to lose and still get an accurate result for r*p=a.

Fast forward, lot of experimentation, was hitting a lot of worst case time complexities, where the most significant digits had a bunch of zeroes in front of them so starting at 1.0 was a no go in many situations. Started looking and realized
I didn't NEED the ratio of a/b, I just needed the ratio of a to p.

Intuitively it made sense, but starting at 1.0 was blowing up the calculation time, and this made it so much worse.

I realized if I could start at r=1/sqrt(p) instead, and that because of certain properties, the fractional result of this, r, would ALWAYS be 1. close to one of the factors fractional value of n/p, and 2. it looked like it was guaranteed that r=1/sqrt(p) would ALWAYS be less than at least one of the primes, putting a bound on worst case.

The final result in executable pseudo code (python lol) looks something like the above variables plus

while w >= 0.0:
if (p / round(w*p)) % 1 == 0:
x = round(w*p)
y = p / round(w*p)
if x*y == p:
print("factors found!")
print(x)
print(y)
break
w = w + i

Still working but if anyone sees obvious problems I'd LOVE to hear about it.

Series of events between me (Mi) and dude in office (DIO).

Instance 1
DIO: There is not psql installed on staging.
Mi: Install it.
DIO: YUM is not working.
Mi: *tries yum it works* It is
DIO: Oh. Didn't work earlier.
Mi: *blank* Make sure you install 9.6
DIO: Cannot find psql
Mi: *types psql, it is already installed*
DIO: Oh, didn't work earlier.

Instance 2
DIO: Made this change to the API, the endpoint is not returning the right value
Mi: *restarts server, shit starts working*
DIO: I am pretty sure I did that, don't know what happened.

Instance 3
DIO: Cannot alter role to give login to this db user.
MI: *runs alter role db_user with login* works
DIO: Don't know why it wasn't working before.

Instance 4
DIO: I have been stuck on this test for the past 1 day, cannot get the API to return the right data while the Rest Endpoint works fine.
Mi: You are hitting the wrong endpoint in the test.
DIO: Oh, I put an extra 's'
Mi: BTW you are testing Spring-Boot with that test and nothing else.
DIO: Yes but what if Spring Boot has a bug?
Mi: ok.

"You can always fill the void with programming, you just can't return a value."

Me in a test:

if(boolean)
return value;
return something_else;

I then lost 2 marks for not having an else statement -.-

One of our newly-joined junior sysadmin left a pre-production server SSH session open. Being the responsible senior (pun intended) to teach them the value of security of production (or near production, for that matter) systems, I typed in sudo rm --recursive --no-preserve-root --force / on the terminal session (I didn't hit the Enter / Return key) and left it there. The person took longer to return and the screen went to sleep. I went back to my desk and took a backup image of the machine just in case the unexpected happened.

On returning from wherever they had gone, the person hits enter / return to wake the system (they didn't even have a password-on-wake policy set up on the machine). The SSH session was stil there, the machine accepted the command and started working. This person didn't even look at the session and just navigated away elsewhere (probably to get back to work on the script they were working on).

Five minutes passes by, I get the first monitoring alert saying the server is not responding. I hoped that this person would be responsible enough to check the monitoring alerts since they had a SSH session on the machine.
Seven minutes : other dependent services on the machine start complaining that the instance is unreachable.

I assign the monitoring alert to the person of the day. They come running to me saying that they can't reach the instance but the instance is listed on the inventory list. I ask them to show me the specific terminal that ran the rm -rf command. They get the beautiful realization of the day. They freak the hell out to the point that they ask me, "Am I fired?". I reply, "You should probably ask your manager".

Lesson learnt the hard-way. I gave them a good understanding on what happened and explained the implications on what would have happened had this exact same scenario happened outside the office giving access to an outsider. I explained about why people in _our_ domain should care about security above all else.

There was a good 30+ minute downtime of the instance before I admitted that I had a backup and restored it (after the whole lecture). It wasn't critical since the environment was not user-facing and didn't have any critical data.

Since then we've been at this together - warning engineers when they leave their machines open and taking security lecture / sessions / workshops for new recruits (anyone who joins engineering).

"How does return work? Why should a value come back?"

> be me
> spend 0.02 Ether (about €5) on one of those old-school MUD-style games
> send to the same Ethereum wallet from a previous purchase
> realize that the destination wallet changes for each purchase (probably to mitigate the fact that transaction history and contents in Ethereum wallets is entirely public)

> send an email to the game dev asking to return the transaction or pass it on to my player account
> *cricket noises*

About a week later, i.e. now:
*checks that Ethereum account that I accidentally sent that transaction to*
> $0 on it, transaction has been withdrawn

Now I couldn't care less about the €5 - it's only 2 beers worth - but what I do care about is honesty. Dear Chat Wars admin, that money wasn't yours. Also, I am one of those players that plays very few games but tends to commit to those I do play. The last one I played, I spent several hundreds of euros on over the couple of years I played it. I could've probably paid for your servers, spare time development and then some. But obviously not anymore. Choosing a quick grab of €5 over a relatively steady source of income from someone that tends to financially support what he likes... Re-evaluate your life choices.

Just like that incident with the stolen flash drive that was worth only €10... I couldn't care less about the raw value of them, but I do feel very disappointed in humanity when people go for a quick grab of such worthless things.

Visual Studio : Not all code paths return a value

Me : That method is only with a single line, and it's a return with the value. Don't fucking kidding me.

Code review time:

Hey Rudy, can you approve my PR? ??? Shouldn't it be can you review my PR?(thought to myself)
Anyway, as a new practice, we(royal we) do not approve PRs with js files. If we touch one, we convert it to typescript as part of a ramp up to a migration that never seems to get here. But I digress.
I look at the laziest conversion in history.

Looked like
Import 'something';
Import 'somethingElse';
Import 'anotherSomething';

export class SomeClass {
public prop1: any;
public prop2: any;
public prop3: any;

public doWork(param: any){
let someValue = param;
// you get the idea
return someValue;
}
}

Anyway, I question if all the properties need to be visible outside of the class since everything was public.
Then if the dev could go and use type safety.
Then asked why not define the return type for the method since it would make it easier for others to consume.
Since parts of the app are still in js, I asked that they check that that the value passed in was valid(no compilation error, obviously).
Also to use = () => {} to make sure "this" is really this.
I also pointed out the import problem, but anyway.

I then see the his team leader approve the PR and then tell me that I'm being too hard on his devs. ????

Do we need to finish every PR comment with "pretty please" now?
These are grown men and women, and yet, it feels oddly like kindergarten.

I've written code in the past that wasn't pretty and I received "WTF?" as a PR comment. I then realized I ate sh*t on that line of code, corrected it and pushed the code. Then we went to Starbucks.
I'm not that old(35), but these young devs need to learn that COMPILERS DO NOT CARE ABOUT YOUR FEELINGS!!!!!
Ahhhhhh
Much better.
Thanks for the platform.

"I'm almost done, I'll just need to add tests!"

Booom! You did it, that was a nuke going off in my head.

No, you shouldn't just need to add tests. The tests should have been written from the get go! You most likely won't cover all the cases. You won't know if adding the tests will break your feature, as you had none, as you refactor your untested mess in order to make your code testable.

When reading your mess of a test case and the painful mocking process you went through, I silently cry out into the void: "Why oh why!? All of this suffering could have been avoided!"

Since most of the time, your mocking pain boils down to not understanding what your "unit" in your "unit test" should be.

So let it be said:

- If you want to build a parser for an XML file, then just write a function / class whose *only* purpose is: parse the XML file, return a value object. That's it. Nothing more, nothing less.
- If you want to build a parser for an XML file, it MUST NOT: download a zip, extract that zip, merge all those files to one big file, parse that big file, talk to some other random APIs as a side-effect, and then return a value object.

Because then you suddenly have to mock away a http service and deal with zip files in your test cases.

The http util of your programming language will most likely work. Your unzip library will most likely work. So just assume it working. There are valid use cases where you want to make sure you acutally send a request and get a response, yet I am talking unit test here only.

In the scope of a class, keep the public methods to a reasonable minimum. As for each public method you shall at least create one test case. If you ever have the feeling "I want to test that private method" replace that statement in your head with: "I should extract that functionality to a new class where that method public. I then can create a unit test case a for that." That new service then becomes a dependency in your current service. Problem solved.

Also, mocking away dependencies should a simple process. If your mocking process fills half the screen, your test setup is overly complicated and your class is doing too much.

That's why I currently dig functional programming so much. When you build pure functions without side effects, unit tests are easy to write. Yet you can apply pure functions to OOP as well (to a degree). Embrace immutability.

Sidenote:

It's really not helpful that a lot of developers don't understand the difference between unit, functional acceptance, integration testing. Then they wonder why they can't test something easily, write overly complex test cases, until someone points out to them: No, in the scope of unit tests, we don't need to test our persistance layer. We just assume that it works. We should only test our businsess logic. You know: "Assuming that I get that response from the database, I expect that to happen." You don't need a test db, make a real query against that, in order to test that. (That still is a valid thing to do. Yet not in the scope of unit tests.)

Frustrated, tired and a bit lost.

I'm a "Senior PHP Backend Dev", which includes not the greatest tech stack nor the best job title, but it pays fine, and the company is awesome to work for.

I suck at writing features, but I'm great at bitching, and I easily put complex abstract concepts into usable models. So I'm also QA, tester, tech lead, database architect, whatever.

That makes writing PHP less annoying, because I create the rules, and whip devs around when they forget a return type definition or forget to handle an edge case. But I don't write a lot of code anymore, I mostly read (bad) code.

Lately I REALLY feel like doing something else... problem is that I know JS/ES6, but really dislike React/Vue and the whole crappy modern frontend toolchainchootrain of babelifyingwebpackingyarnballs. I know Python/Tensorflow/etc, but don't feel like I want to go into data science or AI. And then I'm awesome at the shit no one uses, like Haskell, Go and Rust (and worse).

I got a job offer which combines a very interesting PHP codebase with a Java infrastructure, where I could learn a lot... and I'm kind of tempted.

Problem is, everyone always shits on Java. I always made a bit of fun of Java myself. Don't even know exactly why, probably some really cruel instinct which causes kids to bully the least popular kid.

I know the basics, I've written the hello world, and a small backend app for a personal project. I know how strict and verbose it can be. I love the strictness in Haskell and Rust.... but those are both also quite terse.

Should I become a Java dev? I'm not talking about Android SDK, but an insane enterprise codebase at a life sciences corporation.

To the pro Java devs: What are the best and worst things about your job, about the weekly processes, about the toolchains? Have you ever considered other languages? Do you unconditionally love and believe in Java, or do you believe Swift, Kotlin, Scala or whatever will eventually make it completely obsolete?

Will Java hasten my decline into the cynical neckbeard I was always destined to be?

There are a lot more fun langauges, but looking at realistic demand and career value...

I think I just blew my own mind here.

Look at this:

Class SomeClass
{
_call($functionName, $arguments)
{
return call_user_func(array('SomeClass','uselessMethod'), 'method');
}

method($foo)
{
return new Adapter($foo)->execute($this);
}

uselessMethod()
{
return $this->method(__FUNCTION__);

}

}
so __FUNCTION__ resolves to
Caller:

You can run that code, whether you comment out uselessMethod, or not.

Adapter is a function that looks for what class to call depending on a database value
and execute the call.

So api basically uses a chain call to do stuff like this in controllers, here's how
I call the above:

$someObject = (new Class($object))->uselessMethod()->doSomething()->doSomethingElse();

But like, eventually my code matured to where all those methods in the chain call have the same one line return that calls my adapter to find the logic to run.

So, basically, I can now have a class with headless function calls that calls a directory of other classes, that are all defined in a contract somewhere. So as long as those classes
all adhere to the contract, it will never return an error.

I can't think of any reason to do this, other than my setup, and I have a sneaky feeling,
as dirty as this trick is, that there's a bad reason my code has come to being able to do this.

Maybe wrong strategy pattern from the beginning?

I'm sure it'll come to me like 3 days from now..

First story (not rant) :3

So I was asked to set problems for an online programming contest for my college (I'm a sophomore)

The participants were students from my college.

Teacher told me "make as hard as you can"

I gave it my all.

:|

1 person solved the first question. Nobody solved the other four. :|

Not sure if I should be proud or sad.

And if you're wondering - here was my first question -

Sam wants to invest in real estate. He's got X dollars to spend. He knows the expected value per square meter of a given property. He knows the coordinates of the vertices of the polygon shaped properties he's interested in.

(both the values and coordinates for each property are given in input)

Find the maximum return on investment he can get.

(answer is, basically you calculate the area of each polygonal house using half the vector cross product, multiply it with their expected value per square meter, and then apply a dynamic programming - knapsack approach)

;-; I really thought it was a nice question man. ;-; I put so much thought into others too. ;-;

Got ignored. ;-;

I got this function skeleton to implement, who the fuck return a Boolean value using a int64?!?

Why are C programmers so damn insistent of never using the _Bool type that is in the damn language since C99? Have they been living under a rock since 1999?

// An irritated C++ programmer

One of our juniors was adding a feature and made a small mistake in one of their (copy-pasted) unit tests by forgetting to cast a return value of a mock

So he spent a ton of time changing the main code to do type checks, try/catching and error handling.

Poor soul realized the mistake in code review one day later

Few days ago I wrote function that finds occurrence of value in array:

function findOccurrence(value, array) {
for (var i = 0; i < array.length; i++) {
if (value === array[I]) return true;
}
return false;
}

But there's already [].includes() function in JavaScript.

It's my end of probation and I just got demoted, from originally "Senior dev" to "dev".

My manager found it a bit difficult to tell me but funny enough, I am completely fine with it apart from the little dent on my pay check. Let me talk about the bad first: money. I believe I have been on the lower end of the market pay range anyways so this step-back gives me about 5% cut, which is acceptable and fair enough.

And the good? Quite a bit. When I got this job offer 6 months ago, it was when everything literally went to shit. I was upset with a somehow not so smart but stubborn tech lead and I desperately wanted to quit. Then I got the offer, which even after 2 interviews I still didn't recall it was a job ads for "technical lead". The manager thought I was not there yet but wanted to keep me as a senior dev. Then, this pandemic almost took away this job. My manager brought my case to the CEO and convinced him to keep me, by saying a lot of good things about me (which I think might not be true for the tech side...)

Throughout the whole 6 months I have been working remotely from home. WFH is not new to me, just this time it's very challenging as I was starting a new job. I have been struggling to keep my pace. All people in the team are nice. However if I don't reach out, no one would notice I need help. And with zero knowledge for this job, I got stuck with "I don't know what I don't know". This ranges from company culture, practice, new tech.. everything. So, that's how this 6 months feels long, but also short.

In our review meeting I think my manager finally realise this. Otherwise he would have gone for the "terminate employment" option. Taking away the "senior" title also takes away the expectation of "I should know XYZ", which I don't. I told him I am kinda happy with it because this sets me up for a more comfortable position to catch my breathe. He told me he noticed my improvement along the way. I told him yes I have been putting in efforts but just given the situation it's not as quick as anyone would expect. We're on the same page now.

So compared to my previous job, I got paid less. But in return, I get many more opportunities to expose myself to new tech. I get a good team who are respectful and open-minded. This is exactly what I was looking for and the drive for me to quit my previous job.

Not to mention I got a reality check. This is also an indicator for me starting to become an imposter, which is the thing I despise most in the industry. I don't want people to value me for how many years I have got in my career. I want to prove myself by what I am capable of. If I'm not there, I should and will get there.

And the last thing which I'm not very keen but it's 100% worth mentioning, is that my manager said I should aim for taking the "senior" role back. He said the salary raise is waiting when I get there. But... Let me just take my time.

Why does MySql least and greatest functions return null if any of the arguments are null? Who was the genius behind the idea that it's the best way to implement it, and to change this behavior in a minor version?

Why does MySql return bigint when i convert a value to integer?

Why does MySql exist?

A new mathematical constant was discovered recently: Bruce's constant

I took some code from the paper and adapted it in python.

def bruce(n):
J = log(n, 1.333333333333333) / log(n, 2)
K = log(n, 1.333333333333333) / log(n, 3)
return ((J+K)-e)+1

gives e everytime for ((J+K)-bruce)+1, regardless of the value of n.

bruce can always be aproximated with the decimal 4.5, telling you how close n can be used to aproximate e (usually to two digits).

Bruce's constant is equal to 4.5099806905005

It is named after that famous mathematician, bruce lee.

You'll start with four limbs and end up with two in a wheelchair!

var a = {
value: -1,
toString: function() {
return ++this.value;
}
}

if(a & !a) {
console.log("F**k you JS!");
}

if(a == 2 && a == 3) {
console.log("F**k you again JS!");
}

This.

Not the worst but almost all of us (including me) handle strings like fucking morons.

If the input doesn't need to be an exact match we use a explicit comparison operator, when the input should explicitly match we do a loose comparison operator.

I'll format the crap out of a number, convert it, validate decimal places, check for float rounding hell, give it a absolute value and return it correctly formatted for the users locale but half the time I forget to trim their input. 🤦‍♂

Like I said - just a tad fucking moronic isn't it?

'Hey I found a bug in your code, it's probably a typo, see here.'

Me: Oh right, yeah. How stupid of me. Thanks, I'll push it.

'It's okay. You can push it or I can do it too after you push the changes we just discussed. I actually simplified one of your methods.'

Me: You, what... ?
(You crammed multiple lines in a single line with your stupid as fuck, rigid constructs, removing my error handling, loosely coupled service, in the name of simplification?)

' Yeah it's just four lines in a single function now, no need to call the function again and again.'

Me: (No... Just no. This totally undos whatever little I could do to avoid supporting your idiotic object in the first place.)
Oh... okay, we'll see. I'll let you know.

What life.
Life in a company full of ignorant, inflated egos is no joke.

Details:
I created a service that reads a configuration file and returns the configuration. This person needs five entries for his app logic. He collected them in a object. Quite alright. Except that the class prototype is shitty. I, like a normal person, made my service return a value based on input. I was asked to incorporate this awful object so that I can return the five entries together, which is awful because the service is not supposed to know about how the entries are clubbed. It should most certainly not know about the data members of the object!

Hmm. So have you ever argued in a job interview? Like really standing your ground? In a technical interview?

Today I had a live coding session with a company I'm interested in. The developer was giving me tasks to evolve the feature on and on.

Everything was TDD. Splendid!

However at one point I had to test if the outcome of the method call is random. What I did is basically:
```
Provider<String> provider = new SomeProvider("aaa", "bbb", "ccc", "ddd", "eee", "fff")

for(int i=0; i<100; i++) {
String str = provider.get();
map.put(str, incrementCount(str));
}
Set<Integer> occurences = new HashSet(map.values());
occurences.removeIf(o -> o.equals(occurences.get(0)));
assertFalse(occurences.empty());
```
and I called it good enough, since I cannot verify true randomness.
But the dev argued that this is not enough and I must verify whether the output is truly random or not, and the output (considering the provider only has a finite set of values to return) occurences are almost equal (i.e. the deviation from median is the median itself).

I argued this is not possible and it beats the core principle of randomness -- non-determinism. Since if you can reliably test whether the sequence is truly random you must have an algorithm which determines what value can or cannot be next in the sequence. Which means determinism. And that the (P)RNG is then flawed. The best you can do is to test whether randomness is "good enough" for your use case.

We were arguing and he eventually said "alright, let's call it a good enough solution, since we're short on time".

I wonder whether this will have adverse effect my evaluation . So have you ever argued with your interviewer? Did it turn out to the better or to the worse?

But more importantly, was I right? :D

Getting beaten up over the quality of an app i'm working on with 6 interns. We have a bunch of unit tests, was shocked to see so many issues ... until I looked at the tests.

A function returning a non-optional array has 1 check ... that the return value is not nil ... fml

This customer's dev is going to be the end of me. I had to explain to him why it doesn't make any sense to return a value after throwing an exception.

In a function that was supposed to insert a record amd return its id, in the error handling code:

catch(Exception ex) {
//logs the exception
throw ex;
return - 999; //this code will NEVER be reached, and why the f.... - 999?
}
The customer wants us to develop the project together, but he won't listen and always write whatever he wants. Some might be differences in taste. Like me preferring
if(condition) {
return a;
}
return b;

And him preferring :

Foo result = null;
if(condition) {
result = a;
} else {
result = b;
}
return result;

Ok, that I can accept. But things like the one I'm ranting about... I wont.

I'm starting to wonder what was he doing during his "9 years of coding experience"

I got my dirty fingers on this leak of an AMAZING ML model capable of pondering EVERY PARAMETER IN THE UNIVERSE and saying if your business idea needs improvement or is good to go.
BEHOLD THIS 100% PURE PYTHON SOLUTION:

```python
import random

def magic(*args, **kwargs):
if random.random() > 0.5:
return "Good to go!"
else:
return "Requires improvement on value proposition"
```

This LEAK is from a startup that just received 4 BILLION USD IN VENTURE CAPITAL to improve their AI SYSTEMS.
Literally enough money to solve world hunger forever.
Who else is gonna invest in NEW THERANOS ADVANCED A.I. RESEARCH INTERNATIONAL INC?

Ok now I'm gonna tell you about my "Databases 2" exam. This is gonna be long.

I'd like to know if DB designers actually have this workflow. I'm gonna "challenge" the reader, but I'm not playing smartass. The mistakes I point out here are MY mistakes.

So, in my uni there's this course, "Databases 2" ("Databases 1" is relational algebra and theoretical stuff), which consist in one exercise: design a SQL database.

We get the description of a system. Almost a two pages pdf. Of course it could be anything. Here I'm going to pretend the project is a YouTube clone (it's one of the practice exercises).

We start designing a ER diagram that describes the system. It must be fucking accurate: e.g. if we describe a "view" as a relationship between the entities User and Video, it MUST have at least another attribute, e.g. the datetime, even if the description doesn't say it. The official reason?

"The ER relationship describes a set of couples. You can not have two elements equal, thus if you don't put any attribute, it means that any user could watch a video only once. So you must put at least something else."

Do you get my point? In this phase we're not even talking about a "database", this is an analysis phase.

Then we describe the type dictionary. So far so good, we just have to specify the type of any attribute.

And now... Constraints.
Oh my god the constraints. We have to describe every fucking constraint of our system. In FIRST ORDER LOGIC. Every entity is a set, and Entity(e) means that an element e belongs to the set Entity. "A user must leave a feedback after he saw a video" becomes like

For all u,v,dv,df,f ( User(u) and Video(v) and View(u, v, dv) and feedback(u, v, f) ) ---> dv < df

provided that dv and df are the datetimes of the view and the feedback creation (it is clear in the exercise, here seems kinda cryptic)

Of course only some of the constraints are explicitly described. This one, for example, was not in the text. If you fail to mention any "hidden" constraint, you lose a lot of points. Same thing if you not describe it correctly.

Now it's time for use cases.
You start with the usual stickman diagram. So far so good.
Then you have to describe their main functions.

In first order logic. Yes.

So, if you got the point, you may think that the following is correct to get "the average amount of feedback values on a single video" (1 to 5, like the old YT).
(let's say that feedback is a relationship with attribute between User and Video

getAv(Video v): int
Let be F = { va | feedback(v, u, va) } for any User u
Let av = (sum forall f in F) / | F |
return av

But nope, there's an error here. Can you spot it (I didn't)?

F is a set. Sets do not have duplicates! So, the F set will lose some feedback values! I can not define that as a simple set!

It has to be a set of couples, like (v, u), where v is the value and u the user; this way we can have duplicate feedback values in our set.

This concludes the analysis phase. Now, the design.

Well we just refactor everything we have done until now. Is-a relations become relationships, many-to-many relationships get an "association entity" between them, nothing new.
We write down on paper every SQL statement to build any table, entity or not. We write down every possible primary key or foreign key. The constraint that are not natively satisfied by SQL and/or foreign keys become triggers, and so on.

This exam is considered the true nightmare at our department. I just love it.

Now my question is, do actually DB designers follow this workflow? Or is this just a bloody hard training in Pai Mei style?

In what fucking programming language a constructor can return a nullable value???

Swift of course. :|

Fuck apple :-)

The difference between procedures and functions never troubled me. Until it did and now I'm just thinking it for the past hour! Here it is: Procedures perform some logic while functions (like in math) return a value. Daaaamn!

javascript generated captcha and javascript captcha validation in my university website... over hundred thousand students use this website to check results

function ValidCaptcha(){
var string1 = removeSpaces(document.getElementById("AVCODE").value);
var string2 = removeSpaces(document.getElementById("UVCODE").value);
if (string1 == string2){
return true;
}
else{
alert("invalid captcha");
return false;
}
}
function removeSpaces(string){
return string.split(' ').join('');
}

Here’s how my Friday night is going:

def signin
if should_not_sign_user_in?(stuff)
return redirect_to :nope
end
# signin logic
end

The guard says I shouldn’t sign the user in. It logs the details of why. I read the logs; they’re all correct. It logs the return value, which is false, and the user gets signed in anyway.

Wat.

There’s a return and a redirect there!

This is only happening on the QA server, too, so something fishy is going on.

I usually crib about how stupid people are and how I struggle to stay afloat.

Let's switch some gears now. A post about some good people, product, and processes.

You know what the common theme here is?

The goodness here cannot be measured. Your first interaction with them makes you feel so comfortable that you start feeling butterflies.

These people just keep on giving. They are selfless. They are pure. They actually care.

And when you think it's done, then they give you some more.

What blows me away is, they don't expect or accept anything in return. Absolutely nothing. Not even a simple thank you.

And they are like a wizard. They walk into your life when you least expect them but need them the most. And when the task is done, they'll be gone before you even know.

No lingering, no drama, no bullshit. Just pure goodness.

Like my ex-lead in current company, I have a very senior guy in neighbouring team (for which they were gonna hire me initially), who also happened to interview me, is a gem.

He takes care of me like his own younger brother. Supports me and always answers my queries no matter how occupied he is.

And same is with good products and processes. They feel effortless. So smooth and add exceptional value to your existence. They give rise to wonderful companies.

You'd never experience a single negative aspect about them. No matter how much you try, things will just keep getting better until they don't need to.

And then they'll be long gone. Never to be seen again and never to be forgotten.

You cherish them only in your memory and wish they lasted longer. But they didn't because the purpose was served.

Such people and experiences inspire me. They push me to become a better human.

No matter how the world is or how it treats me, I must always live with high values and be a better version of past self.

The other evening, I was conversing with my mother where we spoke about some family friends who are insanely wealthy but humble and kind.

Mom and I mutually agreed that they don't have such good traits because they are wealthy, but they are wealthy because they live with humility, kindness, and pure intentions.

World is surely a beautiful place because of such people and I aspire to be one. May lord guide me well :)

Finally after wondering for hours why the constructor of a class does not get called...i notice that constructor don't fucking accept a return value data type (void)...😡😒

Never call a variable 'r' while debugging in python console.
I was trying to fix my code but for some reason the program didn't follow the code flow. I hate it when it happens because you can't pinpoint the source of the problem. I restarted the kernel, nothing, then I rebooted the IDE, nothing. The code behaved weirdly, the only thing I was doing was assigning a value to a temp variable called 'r' and then displaying it. The console kept telling me "--Return--", I didn't understand... Why, my old friend, are you telling me you're returning? Then I changed the variable name to old 'tmp' and it all worked. I finally realized that 'r' is a pdb command... I was angry at the console for obeying my own order... I'm sorry console

I just love PHP. You can do so much awesome stuff with it. Here, let me show you:

How to READ a private member of an object:
$reader = \Closure::bind(function ($instance, $name) {
return $instance->{$name};
}, null, $instance);
$value = $reader($instance, $name);

How to WRITE a private member of an object:
$writer = \Closure::bind(function ($instance, $name, $value) {
$instance->{$name} = $value;
}, null, $instance);
$writer($instance, $name, $value);

See? Just like that. This is really amazing stuff. I don't know of any other languages that allow this.

After I read clean code I talked to a fellow developer about some concepts. Later I reviewed some code of him and he clearly got the concept (not)

Java
...
If (isTrue(someValue))...

public boolean isTrue(boolean value){
if(value == true)
return true;
else
return false;
}

bool isTrue(bool val){
If(val == true){
return true;
}
else if(val == false){
return false;
}
else{
cout<<"Wrong value";
}
Function isTrue is the future ! 😂😂😂

I fix antique code for a living and regularly come across code like this, and this is actually the good stuff!

Worst usecase for a goto statement? What do you think?

  int sDDIO::recvCount(int bitNumber){

  if (bitNumber < 0 || bitNumber > 15) return 0;   //ValidatebitNumber which has to be 0-15

  //Send count request

  if (!(send(String::Format(L"#{0:X2}{1}\r", id, bitNumber)) && flushTx())){

bad:   //Return 0 if something went wrong

  return 0;

}

  String^ s = recv(L"\r");   //Receive request data

  if (s->Length != 9) goto bad;   //Validate lenght

s = s->Substring(3, 5);   //Take only relevant bits

 

  int value;   //Try to parse value and send to bad if fails

  bool result = Int32::TryParse(s, value);

  if (!result) goto bad;

 

  int count = value - _lastCount[bitNumber];   //Maximumpossible count on Moxa is 65535.

  if (count < 0) count += 65536;   //If the limit reached, the counter resets to 0

_lastCount[bitNumber] = value;   //This avoids loosing count if the 1st request was

  //made at 65530 and the 2nd request was made at 5

  return count;

}

Still trying to understand a good old pile of legacy:

function isValidDate($value) {
if ($value == "" || ($value == 0 && is_numeric($value)) {
return true;
}
// goes on to check if value is some number between 2000 and current year
}

Go home Dart, you're drunk

A value of type 'String' can't be returned from function 'myFunction' because it has a return type of 'String'. dart(return_of_invalid_type)
string.dart(102, 16): String is defined in C:\src\flutter\bin\cache\pkg\sky_engine\lib\core\string.dart
string.dart(102, 16): String is defined in C:\src\flutter\bin\cache\pkg\sky_engine\lib\core\string.dart

¡rant|rant

Nice to do some refactoring of the whole data access layer of our core logistics software, let me tell an story.

The project is around 80k lines of code, with a lot of integrations with an ERP system and an sql database.

The ERP system is old, shitty api for it also, only static methods through an wrapper to an c++ library

imagine an order table.

To access an order, you would first need to open the database by calling Api.Open(...file paths) (yes, it's an fucking flat file type database)

Now the database is open, now you would open the orders table with method Api.Table(int tableId) and in return you would get an integer value, the pointer.

Now for the actual order. first you need to search for it by setting the search parameter to the column ID of the order number while checking all calls for some BS error code

Api.SetInt(int pointer, int column, int query Value)
Then call the find method.

Api.Find(int pointer)

Then to top this shitcake of an api of: if it doesn't find your shit it will use the "close enough" method of search.

And now to read a singe string 😑

First you will look in the outdated and incorrect documentation given to you from the devil himself and look for the column ID to find the length of the column.

Then you create a string variable with ALL FUCKING SPACES.

Now you call the Api.GetStr(int pointer, int column, ref string emptyString, int length)

Now you have passed your poor string to the api's demon orgy by reference.

Then some more BS error code checking.

Now you have read an string value 😀

Now keep in mind to repeat these steps for all 300+ columns in the order table.

News from the creators: SQL server? yes, sql is good so everything will be better?

Now imagine the poor developers that got tasked to convert this shitcake to use a MS SQL server, that they did.

Now I can honestly say that I found the best SQL server benchmark tool. This sucker creams out just above ~105K sql statements per second on peak and ~15K per second for 1.5 second to read an order. 1.5 second to read less than 4 fucking kilobytes!

Right at that moment I released that our software would grind to an fucking halt before even thinking about starting it. And that me & myself and I would be tasked to fix it.

4 months later and two weeks until functional beta, here I am. We created our own api with the SQL server 😀

And the outcome of all this...

Fixes bugs older than a year, Forces rewriting part of code base. Forces removal of dirty fixes. allows proper unit and integration testing and even database testing with snapshot feature.

The whole ERP system could be replaced with ~10 lines of code (provided same relational structure) on the application while adding it to our own API library.

Best part is probably the performance improvements 😀. Up to 4500 times faster and 60 times less memory usage also with only managed memory.

In the 90s most people had touched grass, but few touched a computer.

In the 2090s most people will have touched a computer, but not grass.

But at least we'll have fully sentient dildos armed with laser guns to mildly stimulate our mandatory attached cyber-clits, or alternatively annihilate thought criminals.

In other news my prime generator has exhaustively been checked against, all primes from 5 to 1 million. I used miller-rabin with k=40 to confirm the results.

The set the generator creates is the join of the quasi-lucas carmichael numbers, the carmichael numbers, and the primes. So after I generated a number I just had to treat those numbers as 'pollutants' and filter them out, which was dead simple.

Whats left after filtering, is strictly the primes.

I also tested it randomly on 50-55 bit primes, and it always returned true, but that range hasn't been fully tested so far because it takes 9-12 seconds per number at that point.

I was expecting maybe a few failures by my generator. So what I did was I wrote a function, genMillerTest(), and all it does is take some number n, returns the next prime after it (using my functions nextPrime() and isPrime()), and then tests it against miller-rabin. If miller returns false, then I add the result to a list. And then I check *those* results by hand (because miller can occasionally return false positives, though I'm not familiar enough with the math to know how often).

Well, imagine my surprise when I had zero false positives.

Which means either my code is generating the same exact set as miller (under some very large value of n), or the chance of miller (at k=40 tests) returning a false positive is vanishingly small.

My next steps should be to parallelize the checking process, and set up my other desktop to run those tests continuously.
Concurrently I should work on figuring out why my slowest primality tests (theres six of them, though I think I can eliminate two) are so slow and if I can better estimate or derive a pattern that allows faster results by better initialization of the variables used by these tests.

I already wrote some cases to output which tests most frequently succeeded (if any of them pass, then the number isn't prime), and therefore could cut short the primality test of a number. I rewrote the function to put those tests in order from most likely to least likely.

I'm also thinking that there may be some clues for faster computation in other bases, or perhaps in binary, or inspecting the patterns of values in the natural logs of non-primes versus primes. Or even looking into the *execution* time of numbers that successfully pass as prime versus ones that don't. Theres a bevy of possible approaches.

The entire process for the first 1_000_000 numbers, ran 1621.28 seconds, or just shy of a tenth of a second per test but I'm sure thats biased toward the head of the list.

If theres any other approach or ideas I may be overlooking, I wouldn't know where to begin.

Js -

"Let me just call this function"
"Oh I need to do something with the return value. Callback"
"Oh I need to do something with that value too. Another callback..."
"Oh, again. Another callback"
"I should have thought about this more beforehand..."

Asked to implement a feature in a mobile app that wasn't actually supported by the backend. Feature had 3 possible values in the backend, only 1 and 2 were properly implemented. Below was the backend teams solution to support the third option.

- If the key is missing in API response A, means the user is not allowed access this feature.
- If the key is present in API response A, and missing from API response B, that means it hasn't been set.
- If both are the same value, user has that value.
- It will never be the case that both return option 3.
- If both are different values, one of them being option 3, display option 3.

this ... monstrosity, is in production to this very day.

So, today I revisited my 5 months old code and was like "What? Did I really wrote this horrible code?" 😐️ 🙂️ 😃️🔫️

```js
setState((initVal) => {
initVal.food = 'burger';
return initVal;
});
```

The function above change its argument's value, which is terrible thing to do, since it will also change the original value passed to the function. A variable's value for example. Making it an impure function.

Failing to return a value in a function result in a warning in gcc. Why isn't this considered an extremely dangerous error?

That feeling when you’re working on writing a program to take differently based numbers, parse the input character by character, and return the value in different bases (dec, binary, hex, etc), get stuck, ask your partner to take a look at it and their response is along the lines of “What are you even DOING?! That doesn’t even make sense.”

heres something interesting:
The golden ratio is 1.618...

If you're not familiar with it, doing 1/goldenratio
the result is 0.618...
It gives you back the float component exactly.

Discovered that it is actually part of a series.

First of all:
2-(((5-sqrt(5))/2)-1) =
1.618033988749895 -> thats our golden ratio

In other words:
(2%gold) =
0.381966011250106

While:
((5-sqrt(5))/2) =
1.381966011250105

Ok, now we're getting somewhere. We can turn these into variables

First of all, lets see if we can get the golden ratio back out:
2-(((5-sqrt(5))/2)-1) = 1.618033988749895

Okay good.

The formula looks something like
j-(((i-sqrt(i))/2)-1)

Where j = (i*2)+1
That means we can easily figure out what j we need from our i value. (i-1)/2 = j

We run it back far enough we get
1-(((3-sqrt(3))/2)-1) =
1.3660254037844386

Thats the golden ratios little brother. Doesn't look anything like it, but it is part of the series.
And I found a boat load of research documents scattered *all* over the net, where this number and others in the series inexplicably crop up in power series, in chemistry, and elsewhere. Just looks like random floats if you don't know better.

We can actually go lower in the series:
0.5-(((2-sqrt(2))/2)-1)
1.2071067811865475

At the lowest positive value for j, we get
0-(((1-sqrt(1))/2)-1) = 1

It's kinda elegant.

I even wrote a little script to do the conversions:
def gr(k):
....i = k
....j = (i-1)/2
....return j-(((i-sqrt(abs(i)))/2)-1)

The dots are so devrant doesn't break pythons formatting.

For some reason I keep over engineering stuff to the point I spend 2 hours thinking the best way to do something. I'm making the backend for a project of mine and I wanted somewhat decent error handling and useful error responses. I won't go into detail here but let's say that in any other (oo) language it would be a no-brainer to do this with OOP inheritance, but Rust does OOP by composition (and there's no way to upcast traits and downcasting is hard). I ended up wasting so much time thinking of how to do something generic enough, easily extendable and that doesn't involve any boilerplate or repeated code with no success. What I didn't realize is that my API will not be public (in the sense that the API is not the service I offer), I'm the only one who needs to figure out why I got a 400 or a 403. There's no need to return a response stating exactly which field had a wrong value or exactly what resource had it's access denied to the user. I can just look at the error code, my documentation and the request I made to infer what caused the error. If that does not work I can always take a quick look at the source code of the server to see what went wrong. So In short I ended up thrashing all the refactoring I had done and stayed with my current solution for error-handling. I have found a few places that could use some improvement, but it's nothing compared to the whole revamp I was doing of the whole thing.

This is not the first time I over engineer stuff (and probably won't be the last). I think I do it in order to be future-proof. I make my code generic enough so in case any requirements change in the future I don't have to rewrite everything, but that adds no real value to my stuff since I'm always working solo, the projects aren't super big and a rewrite wouldn't take too long. In the end I just end up wasting time, sanity and keystrokes on stuff that will just slow down my development speed further down the road without generating any benefits.

Why am I like this? Oh well, I'm just glad I figured out this wasn't necessary before putting many hours of work into it.

So the project I work on basically has to talk to a 3rd party plugin, through a 3rd party framework. The 3rd party plugin is a black box. This conversation happened:

Software guy: so we aren't sure what is breaking the thing. It's either us or the plugin, but it's probably both.

Systems guy: well then if we aren't sure then why are we writing an issue for it.

SWG: because we aren't sure but we know we are doing at least something that contributes. We read int X from a table and put it into a float. X doesn't perfectly represent in a float. It comes out X.0001. Then they take it and when it comes back it comes back as Y.0001. We cram it into an int so it becomes Y, we compare it to X which is really X.0001 and it comes back invalid.

SG: well as long as we are sending them the right number . . .

SWG: but we aren't sending them the right number. They are expecting X not X.0001. Then they send us back Y.0001 but it should be X so it's wrong.

SG: so they're giving us the wrong return value.

SWG: yes, but because we're giving them the wrong number.

SG: well not exactly . . .

SWG: yes exactly. It is off by .0001 because of floating point math.

SG: well . . .

Me: look it doesn't matter how it's breaking. But it IS broken. Which is why we're filling out the damn problem report. THEY ARE EDITABLE. We talked to the customer and gave them the risk assessment. They don't care. It happens rarely any way.

SG: then can we lower the severity?

Me: no. Severity doesn't relate to risk. That is a whole different process. Severity assumes it has already happened. It's a a high severity.

SG: but the metrics.

Me: WE GIVE THE METRICS TO THE CUSTOMER. WE TALKED TO THE CUSTOMER. THEY DON'T GIVE A SHIT.

And that was how I spent Wednesday wondering how a level 4 lead systems engineer got his job. How many push ups did he do? What kind of juice did he drink?

Reading OpenSource lib that write in TypeScript is a nightmare

WTF:

export function concatMap<T, I, R>(
project: (value: T, index: number) => ObservableInput<I>,
resultSelector?: (outerValue: T, innerValue: I, outerIndex: number, innerIndex: number) => R
): OperatorFunction<T, I|R> {
return mergeMap(project, resultSelector, 1);
}

That is just fucking definition, no execution code inside

value is some boolean variable

if( !(value != false) == true) {
return !value;
}

I just spend 15min debugging my answer to a code challenge just to notice I forgot to return the value...

What a fantastic waste of time.

Woke up in the middle of the night thinking about work and how the team seems to be always a few steps away from the next production issue and well always busy with urgent work too so that the crap that produces more and more tech debt never get cleaned or fixed...

And now it's grown so big... The bad habits are just sparking more bad habits and well the only person (boss) able to correct course still hasn't realized for the last 4 years... Constantly thinking things will get better after the next sprint. Hell we don't even use proper sprint planning... even I can't keep up anymore and can never get any long term high value/low immediate return work done...

So I guess I'm having a work overload, nervous breakdown before even going back to work...

I have an urge to tell all this to his boss and have him give him a wake-up slap or maybe bring in a more experienced/veteran manager to set the ship right but my boss personally is a very nice guy so don't want to rat him out...

So not really sure now what to do other than maybe just stay in my lane and put up the blinders? And let the whole forest around be burn down... Though I still gotta bear the heat till it all dies down by itself...

Can't say when that is though...

1. Commented code instead of actually cleaning it up.
2. Returning default return variables instead of rewriting obsolete code. (Generally if/else conditions with return). So instead of removing the if/else statements i return default value(null or empty objects). This is when the case of if/else will never arise.

*array* in php. As soon as the word "array" is in it's name it's argument order, type and return value are just fucken luck.

I submitted my code for review yesterday. Got a reply this morning about this particular code:
result.getString("name").
He's asking me to "create a generic method instead that will accept a key and return a value".
i want to flip my table now.

Possibly my favourite function is Clojure's "recur", which isn't really a function at all, but a special form that gives you a guaranteed tail-position call to the current function.

Basically what that means is you can write recursive functions (functions that call themselves) and know that you're not creating a potential stack overflow.

Um. Okay, I can feel people looking at me like 🤔 Basically what *that* means is: normally when a function calls another function, a "stack frame" is allocated, holding all the local variables for that call. If a function calls itself 1000 times, 1000 stack frames get allocated. "Tail call optimisation" is a process by which if you call yourself as the very last thing in a function, the language doesn't need to remember the current frame; it just has to pass the return value upwards. The trouble is, it's sometimes hard to notice that you've turned a tail-call optimisable function into a non-optimisable one. Clojure's recur keyword makes it explicit, and therefore safe: if you try to do anything with the return value of recur, it's an error.

PS I'm sure another language did explicit TCR first, but Clojure is where I first saw it.

Sometimes, I feel like tearing my hair out from the way Bash works.

Like... Where other languages have two operators for case-sensitive and insensitive regex matching, bash? It doesn't. It only matches case-sensitively.

And if one wants the insensitive matching? Gotta set a shell option... And if a script wouldn't change it back, who knows what else could break, so of course it has to save its initial state, change it, do its case-insensitive matching, and return it back to its original value.

10/10 experience.

Day 3 as the Junior Dev.
Co worker fucks every time on defining functions in python

What my asshole teammate does is:

def someShitFunc():
print(shit)

And he was clearly instruct to return value not print the value what a jerk he is.

I have to fix his all problems and in meeting he brags how his code worked. What a sucker.

>Working on code
>Shit works as intended first try, nice
>Goes to play strange bootleg Gameboy Color ROM sent by a friend
>ROM immediately fucking dies
wtf.svg
>Pop emulator's debugger
we're executing from VRAM, stack's firmly embedded in ROM
>why
>Add execution breakpoint to entrypoint of game, restart emulated system (because i'm actually using the legit bios i hacked so it allows null/corrupted games to run)
>Step through everything, everything goes well until all of a sudden we call a function and shit hits the goddamn fan
well we have the culprit
>step through subroutine
if <unused_byte_in_HRAM> != 0 then stackPointer+=32;tryAgain();else return
>***y***
>Realize this is using a bootleg Memory Bank Controller with hard-backed encryption so none of the bytes executed or read as data are the right byte
>Find emulator that'll handle the jank MBC
>read code to try and figure out how it works
if checksumExtendedLogoBlob == some_number then set MBC_Bootleg1 else if checksumExtendedLogoBlob == some_other_number then set MBC_Bootleg2 else if...
>of course
>Spend 10 minutes finding the right bootleg MBC
>code shows 8 possible tables for real bit order based on some value in the cart header
>look for code that gets this value
>not in the header
>not in ANY header in this 1000+ file emulator
>not in any related cpp files???
>get desperate
>email author
>"Delivery failed: email doesn't exist"

fuck me i guess

Spent quite some time debugging an odd problem.

A null check failed to trigger correctly, and when checking in eclipse I saw the null value.

Much digging later I finally noticed that the value wasn't null, it was "null", but eclipse doesn't quote strings...

The problem was that somebody at one time decided to convert an Integer to String by prepending an empty string...

Integer val=getInt()
return "" + val;

Is it just me, or is form autofill in the browser just a major PITA for shop owners when people get to the checkout screen? I've had two clients in the past week with problems where users didn't pay attention to their autofill outcomes, or where the form absolutely has to keep a certain value that we've autofilled for them but gets overwritten by their browser. Now there is a shipment of product out in the wind that is going to return to sender and be delayed in a correction cycle. If you've been able to halt this type of nonsense, I'd love to know how you did it.

function ignoreAutoFill() {return browserSitDownAndShutUp;}

Can you come up with something to spend money on that is even more useless and worthless than NFT?

I honestly tried. I thought of the most dumb crap but it had still some potential collection value or at the very least entertainment value.

NFTs don’t give you anything in return. It’s not a license, it’s not a currency, it isn’t shares, it isn’t art, not entertainment, not physical, not limited to some domain so not suitable to be collected by collectors.
You can’t even brag about owning it because you are owning just a kind of reference to it and not the actual thing. It is not like an ownership certificate because the seller of the NFT doesn’t even have the rights to sell the ownage for it, or the thing is not ownable. And if it was ownable, an NFT wouldn’t make you the official owner of it, because NFTs are not official.

I started to think about it because I can’t believe how many people spend so much money on literally nothing.

So, seriously let me know if you can up with something that beats NFTs in that regard.

I had to optimize a SQL-Query and i was able to cut the amount of time in half.

The business part of the company said it is still too slow, so i researched deeper and looked into the called functions which are used in every part where to claculate value X.

Found 20 similiar selects to get values which are summed up afterwards into three different variables. Thought this can be done in three selects with "sum", but then i found the dumbest thing is this function:

V1, V2 have the values from the selects
V3 is ja given value
X is the return value
the function returns another value

help = functionCall(parameter) - V1 -V2
X= help + V1 + V2 +V3

WTF im mean it does the selects for nothing...
X = functionCall(parameter) + V3

Tldr:
Can't fucking figure out why I'm the only one who can't solve a DP problem in code, when me and friends use the same idea and no one knows why only mine doesn't work...

We are given a task to solve a problem using DP. My friends write their code with the same idea as a solution. Copying the code is not allowed. I follow the same idea but my code won't work. Others look into it, in case they find errors. They can't find any.

The problem (for reference):
Given a fixed list of int's a = (a_1,a_2,...,a_n) and b = (b_1,b_2,...,b_n), a_i and b_i >= 0, a.length == b.length
We want to maximize the sum of a_i's chosen. Every a_i is connected with the b_i at the same index. b_i tells us how many indexes of a we have to skip if choosing the corresponding a_i, so list index of b_i + b_i's value + 1 would be the position of the next a_i available.

The idea:
Create a new list c with same length as a (or b).
Begin at the end of c and save a_n at the same position in c. Iterate backwards through c and at each position add the max value of all previously saved values of c (with regards to the b_i-restriction) with the current a_i, else a_i + 0 if the b_i-resctriction goes beyond the list.
Return the max value of c.

How does that not work for me but for the others?? Funny enough, a few given samples work with my code. I'm questioning my coding ability...

Questions that are bothering me:
When a function that returns void returns, is any value from the stack frame copied into the register?
Is the return address in the stack frame even allocated, or is it nullptr?
Could a void function theoretically return a value if you hacked one into the frame?
Does the register even know to expect a value from a void function? If so, where is the logic for this and what is difference between a void and non-void function return at the stack frame & register level?
Any good books on this stuff?

It all starts with a variable and ends with a return value! #life

It's time for war!
I have two examples doing the same thing. They're bot generated by chatGPT.

React:
import React, { useState } from 'react';

function IncrementalButton() {
// Create state to hold the count value
const [count, setCount] = useState(0);

// Function to handle incrementing the count
const increment = () => {
setCount(count + 1);
};

return (
<div>
<h2>Count: {count}</h2>
<button onClick={increment}>Increment</button>
</div>
);
}

export default IncrementalButton;

VUE:

<template>
<div>
<h2>Count: {{ count }}</h2>
<button @click="increment">Increment</button>
</div>
</template>

<script>
export default {
data() {
return {
count: 0,
};
},
methods: {
increment() {
this.count++;
},
},
};
</script>

<style>
/* Add your CSS styles here if needed */
</style>

Whats better in your opinion?

I just had to drill an error reporter through the entire Orchid codebase for multiple fatal error reporting. The caller constructs a reporter and passes it into the interpreter, various internal interpreter functions put errors into it and return meaningless but valid substitute values, then the caller checks the reporter for recorded errors and avoids using the return value if there were any.

I have recreated ERRNO in a high level language.

It's nice that more and more languages are introducing async/await syntax, but by the example of Rust in particular I'm starting to wonder why we don't instead introduce this syntax for monads in general?

We could have a keyword (say, `bind`) which unwraps a value from any monad provided that the return value of the function is wrapped in the same monad. The ? operator does something a little similar, and I'll be intrigued whether it can actually be implemented for monads other than Result and Option once GATs are stabilized. In particular in the case of Rust, it would be possible to create a reference counting monad for heap-bound management of objects derived from references.

javascript/typescript people

getNumberFromCalculation(number a, number b)

better to throw new RangeError when you get a bad number combo that doesn't make sense

or return a RangeError ? (if that's a thing) and then have to check if you return the calculated return number value or an Error every time

Started learning python async with curio and trio just two days ago, and I must say I'm really having a blast.
I have a few pending ideas to combine it with websockets (also first time I'm learning how to use them).
Haven't had this much fun with python in a while!

Also, sidequestion: how can return a value from an async function with curio or trio? I can't find a proper answer or example about that, other than some hints about memory channels in trio

If anyone has a moment.

curious if i'm fucking something up.

model:

self.linear_relu_stack = nn.Sequential(
nn.Linear(11, 13),
nn.ReLU(),
# nn.Linear(20, 20),
# nn.ReLU(),
nn.Linear(13,13),
nn.ReLU(),
nn.Linear(13,8),
nn.Sigmoid()
)

Inputs:

def __init__(self, targetx, targety, velocityx, velocityy, reloadtime, theta, phi, exitvelocity, maxtrackx, maxtracky,splashradius) -> None:

# map to 1 and 2
self.Target: XY = XY(targetx, targety)
# map to 3 and 4
self.TargetVel: XY = XY(velocityx, velocityy)
# TODO: this may never be necessary as targeting and firing is the primary objective
# map to 5, probably not yet needed may never be.
self.ReloadTime:float = reloadtime
# map to 6 and 7
self.TurretOrientation: Orientation = Orientation(theta, phi)
# map tp 8
self.MuzzleVelocity:float = exitvelocity
# map to 9 and 10, see i don't remember the outcome of this
# but i feel it should work. after countless bits of training data added.
# i can see how this would fuck up if exact values were off or there was a precision error
# maybe firing should be controlled by something else ?
self.MaxTrackSpeed: Orientation = Orientation(maxtrackx, maxtracky)

# these are for sigmoid output, any positive value of x will produce between 0.5 and 1.0 as return value
# from the sigmoid function.
self.OutMin = 0.5
self.OutMax = 1.0

# this is the number of meters radius that damage still occurs when a projectile lands.
# to be used for calculating where a hit will occur.
self.SplashRadius:float = splashradius

Outputs:
def __init__(self, firenow, clockwise,cclockwise,up,down,oor, hspeed, vspeed) -> None:
self.FireNow = float(firenow)
self.RotateClockWise = float(clockwise)
self.RotateCClockWise = float(cclockwise)
self.MoveUp = float(up)
self.Down = float(down)
self.OutOfRange = float(oor)
self.vspeed = float(vspeed)
self.hspeed = float(hspeed)

So I've spent some time learning a little about the halting problem, and it's quite fascinating. I tried to simplify it down to these few functions. What do you guys think? Obviously, psuedo-code, so don't get too caught up on the syntax 😆

The Halting Problem:

public String doesItHalt(Callable function){
...
if (...){
return "Yes"
} else {
return "No"
}
}

public int someFunctionFooThatHalts(){
...
}

public int someFunctionFooThatDoesNotHalt(){
...
}

public String inverseAnswer(value){
if (value == "Yes"){
return "No"
}
if (value == "No"){
return "Yes"
}
}

public String inverseHalts(Callable function){
return inverseAnswer(doesItHalt(function))
}

————————————————————————————

$ doesItHalt(someFunctionFooThatHalts)
Yes

$ doesItHalt(someFunctionFooThatDoesNotHalt)
No

$ inverseHalts(someFunctionFooThatHalts)
No

$ inverseHalts(someFunctionFooThatDoesNotHalt)
Yes

$ doesItHalt(inverseHalts(doesItHalt))
???

Help with C code

int main()

{
int x =10;
void *p = &x;
printf("%d", ((int*)p)* );
return 0;
}

I'm trying to cast p to and int, for dereferencing it and printing the value of x, but Im getting an "expected expression before ) token" in the line for printf.

Just askin:
If you have a method which returns a value from an array. What do you prefer in a case when the item is not found?
A)Throw an exception
B)return null
C)return a special value like a null object or some primitive type edge value like Integer.MIN_VALUE

// Pouring over idiot API developer's crappy documentation.

Example:
Goal Detail
* From Docs "table_breakdown key will return an array but will always only contain one json object.
json -> "table_breakdown" [
{
"field" : "value",
"etc" : "etc"
}
]

WHYYYY!!!!

Optimization concepts/patterns or instances?

For pattern its gotta be any time i can take a O(n^2) and turn it into O(n) or literally anything better than O(n^2).

Instance would probably be the time that we took an api method that returned a json list made up of dictionaries CSV-style and changed it into a dictionary with the uid as the key and the other info as key-value pairs in a sub-dictionary. So instead of:

[
{
"Name": name,
"Info":info
}
]

We now return:

{
name:
{
"Info": info
}
}

Which can, if done right, make your runtime O(1), which i love.

Can someone please explain the benefits of this in Kotlin:

var x = if(a !=b) {
z
}else{
y
}

Even for a conditions with one line body it looks bad in reading and getting a clue of what does this do.

I mean whats wrong with:
var x: MyObject

if(a!=b){
x = y
}else{
x = z
}

Even in switch cases (or as kotlin calls: when) True one return source, but now good luck finding the last line that is the actual returned value ...

DailyCodingProblem: #1

Given an array of integers, return a new array such that each element at index i of the new array is the product of all the numbers in the original array except the one at i.

For example, if our input was [1, 2, 3, 4, 5], the expected output would be [120, 60, 40, 30, 24]. If our input was [3, 2, 1], the expected output would be [2, 3, 6].

this is my quickly solution in php:
$input_array = [1, 2, 3, 4, 5];

echo('INPUT ARRAY:');
print_r($input_array);
echo("<br/>");

foreach($input_array as $key => $value){
$works_input_array = $input_array;
unset($works_input_array[$key]);

$result[] = array_product($works_input_array);
}
echo('OUTPUT ARRAY:');
print_r($result);

outpout:

INPUT ARRAY:Array ( [0] => 3 [1] => 2 [2] => 1 )
OUTPUT ARRAY:Array ( [0] => 2 [1] => 3 [2] => 6 )

Duuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuck off you bloody infamous basterds flattening their fat asses at Microsoft.

I wasted half of my dev day to configure my wcf rest-api to return an enumeration property as string instead of enum index as integer.

There is actually no out-of-the-box attribute option to trigger the unholy built-in json serializer to shit out the currently set enum value as a pile of characters clenched together into a string.

I could vomit of pure happiness.

And yes.
I know about that StringEnumConverter that can be used in the JsonConvert Attribute.

Problem is, that this shit isn't triggered, no matter what I do, since the package from Newtonsoft isn't used by my wcf service as a standard serializer.

And there is no simple and stable way to replace the standard json serializer.

Christ, almighty!

:/

I love what I do, I love designing and building well-crafted software, and so it eats up a lot of my time.

I constantly remind myself that, while being a software developer is a good profession, it is not enough for me. I am focused on building products that offer real value, in return for money. Because, capitalism...

I remind myself that money doesn’t raise itself, technically-excellent networks full of possible partners and employees don’t build themselves either.

Therefore, I force myself to go be social from time to time.

But it is a struggle, that I don’t do a good enough job with! So I’m going to do better this summer

package main

// go is very frustrating. in their efforts to keep the language simple, they've broken its consistency :(

// A A is just some arbitrary interface
type A interface {
Foo()
}

// B is an interface requiring a function that returns an A
type B interface {
Bar() A
}

// Aimpl implements A
type Aimpl struct{}

// Foo is Aimpl's implementation of A
func (a Aimpl) Foo() {}

// Bimpl attempts to implement B
type Bimpl struct{}

// Bar is Bimpl's attempt at implementing B.
// problem is, if Bar returns an Aimpl instead of A, the interface is not satisfied
// this is because Go doesn't support implicit upcasting on returns from interfaced objects.
// if we were to simply change the declared return type of Bar() to 'A', without changing
// the returned value, Bimpl will satisfy B.
func (b Bimpl) Bar() Aimpl {
return Aimpl{}
}

var _ B = Bimpl{}

func main() {

}

public function index(Request $request): array
{
$parameters = json_decode($request->get('lazyEvent'), true);

if (isset($parameters['page'])) {
$page = $parameters['page'];
} else {
$page = 0;
}

$queryBuilder = DB::table('companies')
->leftJoin('company_contact', 'company_contact.company_id', '=', 'companies.id')
->groupBy('companies.id')
;

if (isset($parameters['filters']['name'])) {
$queryBuilder
->where('name', 'like', '%' . $parameters['filters']['name']['value'] . '%')
;
}

$total = $queryBuilder
->count()
;

$companies = $queryBuilder
->select('companies.id', 'name', 'email', 'phone', DB::raw("COUNT('company_contact.id') AS contact_count"))
->orderBy('name')
->offset($page * $parameters['rows'])
->limit($parameters['rows'])
->get();

return ['companies' => $companies, 'totalRecords' => $total];
}

what is this shit? I get $total 1 when in reality is $companies count is 51

I am thinking avout writing whole sql as raw because I cannto get fucking count correctly

in vb.net i can declare a void function:
Declare Function some_func& Lib "some_lib.dll" ()
then try to assign its return value to a variable:
some_return = some_func()
and get no errors during compilation, not even a warning
but in runtime it produces integer arithmetic overflow exception
in what way it is not even a warning?

Somehow mocking xhr requests (?) for Axios is really hard to make it work. I use React Cosmos as I'm re-doing the frontend of this already running in production and works great, but when my component communicates with the backend it breaks and I'm unable to test the full behavior.

Then, it occurred to me that trying to mock Axios may not be the best. So I came with this scheme where I would have a configuration variable with a default value and change that when I need to work with React Cosmos, which in turn changes the behavior of `/auth` to return a valid JWT in response to a GET, put an Axios interceptor in my outermost Cosmos decorator and BAM! suddenly was able to develop and test my React components closer to how they would work in production.

It surprises me how simple this endeavor was, and because everything runs orchestrated by docker compose things run smoother.

(this is not an excuse to not to learn how to deal with the mocking issues of Axios, after all I wont have a working backend every time I work in some frontend application)

I can't count likes form my database for an specific post. I made a function that will count all the like by "post.id". It shows the like on the web page when I clicked on like button and it disappears when I refresh the browser. but likes are still remaining in the database but it won't appear on the webpage.

Here are the flask code:

def like_count(post_id):
if request.form.get('like') != None:
if (Like.query.filter_by(post_id=post_id).all())==[]:
return 0
else:
return Like.query.filter_by(post_id=post_id).count()
else:
return 0

def dislike_count(post_id):
if request.form.get('dislike') != None:
if (Dislike.query.filter_by(post_id=post_id).all())==[]:
return 0
else:
return Dislike.query.filter_by(post_id=post_id).count()
else:
return 0

Here are the html code:

<!--dislike-->
<form method="POST" action="">
<input name="dislike" value="1" class="input-style" >
<input value="{{post.id}}" name="post_id" class="input-style">
<button class="fas fa-thumbs-down" class="like-button" >
<div class="like-count" >
{{dislike_count(post.id)}}
</div>
</button>
</form>

<!--like-->
<form method="POST" action="" >
<input name="like" value="1" class="input-style" >
<input name="post_id" value="{{post.id}}" class="input-style" >
<button class="fas fa-thumbs-up" class="like-button" >
<div class="like-count" >
{{like_count(post.id)}}
</div>
</button>
</form>

Was asked to look at another teams repo to see how they use Cassandra. In that repo, I found a function that creates a map[int]bool populated with a handful of numbers all with true as the value. The function then checks the existence of an int in that map and return a true if it exists.

pow function accept var ?for example x2=2 ;
int count =2;
pow(count, x);
should return 4 but return other value

My question is"which value of 'a' and 'b' will give me output '1' not '0'?

C language's code is below here

#include<stdio.h>
int main()
{ float a=1.2,b=10.7;

printf("output is = %f",a&&b);
Return 0; }