The Worst Lines of Code Ever 

this show’s up when you search up “Yandere dev code” lol

Yandere Dev will copyright your bad code as his own

"What is the issue here?" Me: That tomorrow isn't three years in the past?

yanderedev is turning 43 next week

Yandere Dev *Angry Noises*

Today: 2019 Tomorrow: 2016

Are ya coding son? *ARE YA CODING SON???*

You brain farted at 6:06 "if (x&&y)" does NOT take into account a situation where it is just x But "if (x)" takes into account both where it is x and where it is x && y.... So it should actually of been "if (x)" Thanks for coming to my TED talk

6:06 Actually that simplification is not right: the intuition is that OR'ing a statement with a smaller statement makes it "weaker" (true in more cases), but you kept the "stronger" of the two terms. What you meant to say was: If the first part (x) is already not true, the second part (x && y) is just impossible, so we can ignore it. The final simplification would have been just x.

Thats crazy, I never knew that reversing the password was done often. I assumed they always used hashing methods..

I have searched "are you coding son?" How fitting...

6:00 lmao i see you're an expert at bad code

6:07 - if (x || (x && y)) should be replaced with just if (x)

Indian company "Hello sir, I understand your pain, you call too soon we have to update the days" "What do you mean, updating day ?" "Sir, days are changing, when you go to bed, a new day happens and we have to make the change" "Are you saying your dates are static and you have to update codebase every day ?" "Its best practice sir"

wait but like If(x or (x and y) isn't the same as If(x and y) surely it'd just be If(x)

Im a little confused here At 6:05, the "wrong" version of the first case would return True even if only x was true, which wouldn't happen on the fixed version, But it would work as first mentioned if it was just if(x); because y doesnt seems to really matter, hope im not just being dumb here Also great vid

problem: encrypt a password normal person: use bcrypt or the similar algorithm noob: use actual encryption algorithm another noob: use md5 or SHA this person: reverse the password.

Kek, why is this showing up when you search for yanderedev?

hi just wanted to let you know that my day is going pretty okay, hope yours is too

"There is no bad variable naming in asm, 2:45, because it's just a bunch of hex values" - me

if (x || (x&&y)) this means x is present OR x and Y are present, meaninging the correct simplification is if(x) since otherwise y is now required, it wasnt before.

I like how he says "that's a whole lot more simpler" instead of just "that's simpler"

For the first example, if today, is a boolean check against a date object. Another terrible part.

For, Today and tomorrow , the other problem is logic if (today) will always evaluate true

as a bonus, dont forget to breath, breathing is very important and you have to make sure that you do it constantly, it is very bad practice to not breathe since it can cause a multitude of problems, hope I was able to teach you something new!

I'm just starting on my path to a software-based career, and I've been looking for stuff like this to improve. Thank you!!

Yeah I was trying to get a random letter so I made a switch statement with a single letter for every case and used a random number to pick one

The first one the problem isn't only the date, it's the if statement. There is no condition.

I came here looking for mistakes I may do, but to my surprise I was already aware of all of them despite being an amateur coder. Nevertheless, nice video!

Thanks for this video. I got a new job and the person that was before me wrote code and used way to many loops with the conventions i, j, k. Bad variable naming is a pain in the ass.

You forgot to put a infinite loop with for or while in this video. This is one of the most pathetic errors I could've done and I'm still doing sometimes.

Well done, when people wonder about YandereDev's coding and they hear "Else Ifs" it's hard to explain it to normies in simple terms like this.

I searched "Are you coding, son?" And this shows up lol

You know what to me the worst lines of code ever is... "Else if"

2:20 If it is the first thing I see - I'll immediately close the file and virtually toss that shit in the garbage.

As a first year comp-sci student, this is actually very helpful as well as very entertaining!

The worst code I've ever heard about was someone using a variable name to represent the number it spells, "Seven = 7".

0:43 potential for another Else If nightmare.

The code: If (x || (x && y)) Is not the same as: If (x && y)) The first one has a truth table of: X | Y | Output 0 | 0 | 0 0 | 1 | 0 1 | 0 | 1 1 | 1 | 1 The other one has a truth table of: X | Y | Output 0 | 0 | 0 0 | 1 | 0 1 | 0 | 0 1 | 1 | 1 You should have written: If (x)

Read through the code and every time you see an if statement you take a shot.

I like the type of this video, but Im not sure what the audience of the content is?

I never thought I'd find a worse encryption method than rot-13

let x = true; let y = false; x || (x && y) returns true x && y returns false yeah, that really fixes the problem....

Remember, even if your code works, there's probably a better way to do it.

5:58 correct me if I'm wrong (I do Java and C#, not JS) but... x || (x && y) does NOT equal x && y. The problem isn't redundancy, it's that y is made completely irrelevant because the value of x always takes precedence (If x is true, it shorts on the first or. If x is false, then x && y shorts and the whole thing fails (x || x, in effect). The value of y is irrelevant in either case). I get that you're trying to show that x && y is better than x || (x && y) (which it is, unless you really do just want to check for only x), but it's still an error. Considering this is aimed at programmers with less experience, this distinction is necessary.

The fact that youtube shows me a video about terrible coding because I saw a lot of Yandev videos is one big laugh to shoot.

I have a hard time imagining anybody to make these mistakes, just saying.

Where would you ever write the code if(today){ } else if(tomorrow){ }? Today can never be tomorrow. The code in general viewed as an example makes no sense.

This content is pretty chill, keep it up man. 👍

X || (x && y) is actually just x, not x && y. Very very bad teaching here. Actually teaching people to do it wrong.

if lag then() dont end (this was before i actually learned lua, i attempted to make a low detail mode for my game lol)

Yandere Dev: "Write that down. Write that down."

2:12 The issue with you declaring those variables is that you skipped "n" from the alphabet. I know, beginner mistake, did it myself in the past.

I made the bad variable names mistake and it is very painful to deal with afterwards.

When studying engineering there are entire lectures on how to simply logic statements like those you showed with x, y, a, b and c. Can't blame Yandere dev for messing those up, the one with a, b abd c is kinda hard to notice imo unless you realize that it's a canonical SOP form that fills the entire 2x2 logic table short of one value, making the POS (canonical) form smaller

The worst code ever: if(conditionA == true) { return true; } else{ return false; } *return conditionA;

I thought the problem with the first example was that the "tomorrow" date was 2016 and not 2019.

3:22 Me reading the last item in the short note list: *nervous whistling in UserCount, CountUsers, NumOfUsers etc all in the same function*

This was recommended to me after I watched a video on Yandere Simulator code lol

In 6:10, you will need to change the code for only if ( x ) -> You are ultimately comparing if x is present or not, regardless of y

i think that one of the worst things to do is to put a bunch of logic statements where using a multi-dimensional array would be a lot faster

2:29 you skipped n, i win

"If today" makes no sense at all, since a date object is not a boolean...

okay So, storytime. I'm learning C# because a lot of programs use it and I decided to take THE WORST CRASH COURSE. I was writing the practice code and it would NOT WORK. You know why? THEY DIDN'T TELL ME TO PUT SEMICOLONS.

0:17 me yelling at my PS4 in response to a broken HDMI port

Before I took a programming course, I had no clue what I was watching. But now, it all seems like common knowledge.

For me, in the EncryptPassword, the real issue is that we could just type reversed("kayak") and it would be shorter than EncryptPassword("kayak") That's one function for nothing :(

I tend to name variables letters which is not good but I only do that to test something out really quick

Can you spot the issue? Yes, you‘re right. There‘s a typo in the syntax... That‘s how this video feels to me...

in 10,000 lines of code, you still cant code. and have ended up not only failed to execute your edits as instantiating a function return is Invalid, but also breaking code by removing a functional case from multiple if statements. i hope to dear god for everyones sanity. you NEVER get hired into a project until you CAN ACTUALLY be productive.

Oh boy today i will make a game that checks the position of clothes and hair on each character model every single frame making he game run at dogshit speed

i think the video contains an error. The condition (x && y) example reduces to something different than what is presented. In fact it reduces to (x)

Sleep is not bad design. It's literally good to call if the thread has nothing more to do. It gives processing time to antoher process. Sometimes u just need to wait for example in multithreading or networking for a operation to finish.

Thank you, kid. This should help me understand simple problems with code that people keep making. If only redundancy wasn't so huge...

Actually in the first example the wrong dates are the least of worry. As "Date" will always evaluate to true, it will always run the "today"-block no matter what the date and the "tomorrow"-block is unreachable code.

There's a lot more wrong with the first example: (1) 'today' is in 2019 and 'tomorrow' is in 2016 (2) The date objects aren't being compared to anything (3) (After fix) The present is always today. You COULD wait for it to become a day later, because the dates never get updated, but that would mean the variables' identifiers don't really say what they mean, which is just bad practice

Tomorrow is Now +1 to Date

Pretty sure the else block in the first example wouldn’t run at all. It’s simply checking that the ‘today’ var isn’t falsely as opposed to checking whether the current date equals some constant.

6:03 nooooooooooooo!!! it's not the same!!!!!!

If today == sunday.... *SELF DESTRUCT*

At the minute 6:03 the "behaviour" of the "wrong" if is not the same as the "right" one, it would be if the first if was "if (x *&&* (x && y)) -> ?". In the case presented by the video the if could have been simplified writing "if (x) -> ?".

1) not sure what this has to do with my search history. 2) those, while not great, not the worse. 3) I think the worse is out of bounds indexing, and careless for loops

If(1) Else If (2) Else If (3) Else If (4) Else If (5) Can You See a problem?

Tbh. I feel like having spaghetti noodles codes. Will make pc horrible. You know what I mean I feel like all pc won’t handle high quality stuff in yandere simulator

Seeing the var part remember my self scrolling up codes just to check "wtf did i name that var again?"

3:20 you could also add comments to your work to make it easier to identify those variables but i don’t recommend putting that many

5:21 Wrote a bit of code that infintly counts up. The sleep function was useful for that to allow it to count slowly enough for a human to read the numbers :P

2:16 You're missing an n that's the problem.

"The past is tomorrow"

complaints: you’re treating the date as a boolean, we will not travel to 2016 tomorrow, skipped variable n, should instead sleep for 60 instead of looping

at 6:10 or something: (x || (x && y)) actually resolves to just x, because if x is true, the statement is true, regardless of the value of y

6:23 If I find that code in an pull request, I'm gonna commit homicide

Y’all don’t worry about the people who claim Yandere Dev is a millionaire. His net worth is 330k. (I’ve estimated it to be lower considering his lack of monetization, but I thought I’d highball it for arguments sake. The national median, (skewed to count out the 1%) including projected homeless and immigrants is about 100k. It seems impressive until you realize he lives in Cali, which is way hyper inflated in comparison to the average us citizen. The median cost of a suburban home in Cali is about 440k. He’s performing pretty mediocre for someone who has such a large patreon, following, and overall notoriety. I was gonna compare him to other RU-vidrs, but he’s not a regular uploader, and again, he’s not monetized 90% of the time so I think it’s a silly point. He makes about 2k a month, but it’s not solid as his Patreon fluctuates regularly. Currently his monthly donations stand at 1.8k. His primary source of income nets him nearly 24k a year. Less then the average minimum wage worker in Cali, which sits at 27k. Now the hard part: His twitch. He streams pretty frequently, but recently his following is on a decline, hitting about 19k viewers this past month, which is honestly not very impressive considering his follower count of over 40k. Nick Merks has about 45k active subs and about 3 million subs. If we scale this with five other high grossing streamers and two other streamers, and follow the logic that two hundred and fifty dollars are applied for every one hundred subs then yandere dev, makes by my calculations, at most maybe around 18k on twitch every six months. This is EXTREMELY generous since I rounded him by the same standard as GIANT streamers. So let’s assume that he makes 36k from twitch every year, and 24k from patreon, and throw in an extra 2k for twitch donations, financial aid, loans, etc. and we hit a gross income of 62k. After taxes, he takes home 42k a year if we high ball the hell out of him, a great deal less then the median salary in California, 63k, and WAY LESS then the mean salary of 91k. In conclusion, Yandere dev is a below average earner, and fanboys can suck my balls. Sources: lao.ca.gov/reports/2015/finance/housing-costs/housing-costs.aspx www.marketwatch.com/story/whats-your-net-worth-and-how-do-you-compare-to-others-2018-09-24 www.financialsamurai.com/the-average-net-worth-by-age-for-the-upper-middle-class/ statsmash.com/calculator/yandere-dev-net-worth www.minimum-wage.org/california#faq www.patreon.com/YandereDev#no_universal_links socialblade.com/twitch/user/yanderedev twitchtracker.com/yanderedev smartasset.com/retirement/average-salary-in-california www.ziprecruiter.com/Salaries/How-Much-Does-an-Average-Make-a-Year--in-California wwe.commonfuckingsenseyou/retardfanboys/Your-God-Is-Poor

1:10 you mean that "tomorrow" was back in 2016????

Me: Founds this video Me in my head: Alex

That moment when you use "if" and "else" in you're code line.

*I didn't even know I could learn game codes with 13 by only watching a RU-vid video* lol

the irony is that a tech giant like Facebook actually stored like millions of user passwords in plain text

Tobi, wouldn't (x || (x&&y)) return true and (x&&y) return false in the case of x=true y=false?

Your boolean algebra doesn't work out. The first one is simplified to just if(x). The second one you did correctly.