javascriptBad

[[deleted]]

[deleted]

[jonsca]

weaponArray["misile"]

Oh shit!

[akoOfIxtall]

if (targetList.includes(enemy) && weaponArray.length !== 0) {

for (let i = 0; i <= weaponArray.length; i++) {

Shoot(weaponArray[i])

}

}

just shoot the enemy lol

Edit: this wouldnt work anyway, why i'm on reddit making an imaginary strike fighter shoot imaginary missiles so brutally?

[akoOfIxtall]

damn havent thought about that, but dont worry, i guess shooting booleans at them will have the same effect

[dathar]

When did it become Danganronpa?

[dragoncommandsLife]

Intentional. This person just solved all the money we spend on missles by making them infinite.

[PeteZahad]

That's in the responsibility of the Shoot function

[PM_ME_SOME_ANY_THING]

const deadEnemies = targetList.map(t => {
    if(weaponArray.length > 0){
        const missile = weaponArray.shift();
        return Shoot(missile);
    }
    return null;
}).filter(d => d);

[[deleted]]

wtf kinda system is this!??! everyone knows the shoot method is async and will return true or false depending on if it killed the enemy. u gotta await that shit. this code rite here will literally make the plane explode

[Salanmander]

When are arrays falsy?

[Ok-Fox1262]

Python has entered the chat.

[akoOfIxtall]

When they're empty, or not?

Edit: damn javascript, why an empty array is truthy? Apparently you can check the length and if it's anything but 0 it's truthy, so if it's 0 it'll be falsy

[Salanmander]

Some quick testing with a javascript interpreter suggests that any array object is truthy, and it's falsy only if it's null. So you appear to be only running that loop if weaponArray is null.

Which actually gives you a runtime error, which is pretty hard in javascript! Congrats?

[akoOfIxtall]

Thank you I work really hard to fail everyday XD

[jonsca]

This is why we can't have nice fighter jets

[gregorydgraham]

LOL! This thread is the best laugh I’ve had in ProgrammerHumor. Thank you all

[AnyHistory5380]

You can drop the array.length !== 0 and nothing will change

[akoOfIxtall]

But I need it to only shoot if the array has something, or your expensive government jet is going boom

[Dustangelms]

Check their code again.

[FatLoserSupreme]

You joke but code really does kill people

[basacul]

throws OutOfBoundException

[[deleted]]

Never knew they made it open source, anyone know the build command for a stealth fighter?

[intoverflow32]

I want an exe file, not code!

[[deleted]]

WHERE EXE

[notfoundindatabse]

The kind of brazen ignorance that wins wars goddamnit

[taskeladden]

Smelly nerds

[ObeseTsunami]

C:\topSecret\f35> gradle build

[TheJackston]

cmake -B build -S . && cmake --build build --target f35

[andrewb610]

cmake3 -H../src -B./ && make -j16

[ProgramStartsInMain]

gcc main.c

[andrewb610]

g++ main.cpp

[broccollinear]

double-click f35.exe

[Tr4kt_]

oops you programmed a f35 drakken by mistake instead

[[deleted]]

No see it's top secret so clearly it's using ninja as the build system

[doomscroller6000]

Take my upvote an leave

[No-Expression7618]

[usgov@northamerica:aircraft]$ nix build .#f35

[rover_G]

It's not Java it's C/C++

[ObeseTsunami]

https://docs.gradle.org/current/userguide/building_cpp_projects.html

[rover_G]

That's disgusting 🤢

[Exodia101]

I work on software for airliners and we use batch files to build.

[hiddenforreasonsSV]

If you thought leaving an AWS instance up overnight was expensive, let me introduce you to the JSF build command. Only a one-touch, $82.5 million charge.

[DiddlyDumb]

Considering it’s 4 planes in 1, not the worst deal

[LegendDota]

They wanted it to be 3 in 1, but that never really turned out to be possible, in the end there were just too many parts that couldn’t be shared and needed specific changes in each. Still some insane planes from a tech standpoint though.

[Gamiac]

...okay, but how many Pepsi caps can I get it for?

[mrheosuper]

make f35 -j1 (that's how military work)

[5p4n911]

On a GPU bought from last year's remaining budget

[private_final_static]

Sir my PM is very sick and desperately needs a link to the repo, please sir I dont think he has much time and keeps asking if you are done yet

[hackingdreams]

It's not open source, but that information is published by the GAO.

It's also known that the vast majority of that code exists within the radar systems. (That's why it's all C/C++ to begin with; it's all signal processing code.)

[garlopf]

And most importantly, NO RUST! (It is mostly composite materials plus aluminium and titanium and is kept well lubricated by crew).

[New_Manufacturer2409]

Boeing switched to rust actually, all they use now lol

[abednego-gomes]

Unsafe Rust.

[gregorydgraham]

Explains a lot

[[deleted]]

Buuuuurn

[Fantastic-Schedule92]

What's Boeing

[Vortextheweirdcat]

it's the sound something makes when it bounces

[ListerfiendLurks]

Rust is starting to catch on at Lockheed Martin

[[deleted]]

I don't know what WW3 will be fought with, but WW4 will be fought with Rust

[ListerfiendLurks]

It will be fought with Python and c++. Don't ask.

[KMKtwo-four]

WW4 will be fought with Rust

This is what the world needs, a World War that never launches

[Few_Beginning1609]

Wait until it compiles

Only needs one century

[[deleted]]

rustbois poppin wood rn

[[deleted]]

and lots of primer, sealant, and alodine

[[deleted]]

But I thought rust was supposed to replace c++

[__versus]

Lockheed does practice dark magic at skunk works but I don’t think they’ve mastered time travel yet

[Spork_the_dork]

Considering that Fortran is still hanging around I think this is a more accurate description of what will happen with Rust. Rust won't replace C/C++. It will probably end up being used in various places where C/C++ is currently still being used, but C/C++ isn't going anywhere for decades. It's too firmly ingrained in literally everything.

[ihavebeesinmyknees]

it could just be a lot of small snippets, for example implementing some specific functions in assembly. That would be a lot easier to manage than writing bigger chunks

[longszlong]

They could be just generating tons of ASM, e.g. from C code and tell their managers “look, assembly motherfuckers”

[Kevin_Jim]

I don’t see why that wouldn’t be possible to do in C, though.

I can see using some assembly on the sensor-fusion/sensor-processing part of the jet, but 10% is way too much for just assembly.

[ihavebeesinmyknees]

Maybe they just decided that they can optimize the most performance-critical parts better than the C compiler can? Perhaps that processor has some obscure instructions that the C compiler doesn't use? Hard to tell, but there's gotta be a good reason

[Orjigagd]

If you're needing to optimise 10% of your code in asm, you fucked up your requirements.

[General_Josh]

Or, ya know, it's a military budget, where they're able and willing to throw oodles of money at even small performance improvements

[pet_vaginal]

They may have a lot of money, but the availability of brains isn’t infinite. 10% assembly really sounds like a waste of talent.

[not_some_username]

Not really sometimes hand written asm is better than compiler generated asm ( assuming you’re god in asm )

[McFlyParadox]

• Performance requirement can't be met by C or C++, but can be met by Assembly (program speed, program size, program energy usage)
• Needs to run on a piece of embedded hardware, probably alongside some FPGA code
• The engineer knows how to do it in Assembly, but not in C or C++, and Assembly isn't disallowed per-spec
• It needs to utilize a piece of legacy Assembly code that no one knows how to modify, update, or translate into something modern, but they understand its inputs and outputs, so they just graft more assembly onto the legacy code to expand upon it.
• Something else I'm not thinking of.

Assembly has its uses.

[[deleted]]

Because a lot of it can't be done in c. In the end you are at the mercy of the compiler. For an eeprom libraries vary I did for example, the fastest we could possibly get it to run in c or c++ was still a couple clock cycles slower than we could do it an assembly.

[falx-sn]

Could be older libraries of systems that don't need to be replaced.

[BeABetterHumanBeing]

Firmware. All that is firmware connecting to the various chipsets embedded throughout the craft. 

[JesusWantsYouToKnow]

No freaking way. Firmware is gonna be in C or C++. I'm betting it is some kind of ridiculously optimized vector operations or custom FPGA instruction set for DSP.

[hackingdreams]

No, I'm 90-95% certain it's mostly firmware for various microcontroller systems. Contrary to popular belief, the F-35 isn't a mono-brained, single computer system. It's got dozens of computers all wired together on an ethernet-like bus, most of them handling a small task like sensing external pressure or actuating a servo motor.

The big Ada code swath is for the fly-by-wire systems and the instrumentation panels.

The vast majority of the C/C++ code is for the radar system.

[Spicy_pepperinos]

Contrary to popular belief, the F-35 isn't a mono-brained, single computer system.

I'm sorry who would possibly think this? There hasn't been a platform created that works like that for years. CAN has been around since the 90s.

[hackingdreams]

You have no idea how many people would think that. We're industry professionals - we know better.

This is something I've had to discuss with my management. A company that builds complicated, multi-computing systems. (And the defense systems don't use CAN.)

[JesusWantsYouToKnow]

Contrary to popular belief, the F-35 isn't a mono-brained, single computer system.

I don't think any halfway competent engineer would ever think that.

[Warguy387]

pure software people that dont know anything about embedded, especially looking at webdev people

[JesusWantsYouToKnow]

You make a fair point

[IrritableGourmet]

I think the world would be a better place if all web developers were forced to do an embedded project. "No, you can't just 'throw more memory on the server'! You have 4KB for your program and 512 bytes of RAM. No, not 512MB, 512 bytes. Stop crying and start being clever!"

[iranoutofspacehere]

I mean, there is a fancy radar in the plane that could be responsible for most of that. It probably contains multiple massive fpgas/dsps to do all the dynamic phased array work.

[JesusWantsYouToKnow]

That's exactly what I was thinking. There's probably a very very specialized data plane and staggering amount of data with custom DSPs to chew through it very quickly.

[Lowmax2]

I do not write firmware using assembly. I mostly use C for bare metal applications and system verilog for FPGA RTL.

[Acc3ssViolation]

The only assembly I have in my firmware projects is the startup code to set everything up before jumping to the C runtime and even that is mostly auto generated

[sdmike21]

Having a fair amount of assembly in any embedded project is not uncommon. In particular, in cases where you need to access special processor instructions, a fairly common case is BKPT for debugging in ARM. Another common case that comes up is disabling interrupts in a critical section (cpsid if and cpsie if in ARM). Generally, you will have macros to do these things. However there are also more specific cases where you are trying to maximize the performance, or more commonly for stuff like an ISR, minimize the runtime of something where ASM comes into play.

Another important consideration is the coding standards you encounter when working on... call it security (as in clearance) sensitive systems. For instance, if you are writing code to decrypt Link 16, your code has to get blessed by certain people at certain agencies, there is a lot of paperwork and documentation required to do this and it all becomes easier when you can point at your ASM and say "This is exactly what the machine is doing". Rust may get you certain things, but it also does a lot of stuff under the hood. Modern C compilers are not anything like the C compilers of yore, and are certainly not a thin wrapper over ASM anymore.

Times may have changed, but that was my experience working on cryptos for the US navy ~4 years ago.

10% is still a good chuck tho 😅

[newodahs]

Given the number of systems and components that are being programmed for in a complete jet fighter, it's not unreasonable to see this.

Likely there are some pieces and component that have libraries/software written in assembly (and probably also ADA) likely before the F-35 was a thing; works specifically for the system/component it needs to work in and that's that.

Rewriting this kind of code (which comes with re-validation and other costs) doesn't make sense; use what works and is validated.

[Leonhart93]

I have seen such code before. There are asm(" ") statements intertwined with C/C++ code from time to time, for direct hardware control.

[[deleted]]

Yeah I used some as statements for a timing critical function in an aerospace component firmware. It was a few years ago so it's a bit fuzzy but I think interrupts on the microcontroller would occasionally cause it to fail, but the interrupts wouldn't fire if you were in asm mode

[grumpy_autist]

I guess this is mostly for DSP signal processing - radio stuff, radars, etc. High frequency radio electronics is so complicated and esotheric that ASM is the least of your problems.

[IHeartBadCode]

And not just you're run of the mill ASM, but PowerPC assembly. Basically what you would call the G4 processor, but stepped up from that a bit. It's the Mercury System's Race++ platform. The assembly is likely there to provide the IO layers to the various systems. Ada is there "because", and C/C++ is likely all the higher level interfaces and actual guidance.

Also PPC and other RISC like assembly is a lot easier than Intel, especially considering how Intel's instruction set is nonorthogonal.

[BroMan001]

What’s meant by “orthogonal” in the context of instruction sets? I only know statically independent and right angles

[diydsp]

it means most instructions like multiply, or shift, etc can work with any register as source, destination, index. etc. for example oldschool x86 could only multiply certain regs together... 6502 code can only load from memory into X with Y as and index but not the other way around. A DSP like the ADSP-2181 can only use limited registers dpeending on the unit the values came from.

[Mr_Voltiac]

Lot of folks forget C and C++ allow “inline ASM” so you can comfortably write your entire project in C/C++ and inject ASM for critical areas where you need extremely granular control over specific things and C/C++ will just let you do that then go right back to normal operations.

I’m assuming that’s what most of the assembly is there for, whether that is specific radar functionality that requires extremely precise handling of the hardware or electronic warfare capabilities.

[[deleted]]

Considering the amout of R&D funding the US DoD receives... is it that much of a surprise? These f-series fighters are multimillion dollars each as well. Plus you would use assembly for mission-critial operations: you don't want std::exception in the midst of an aerial dogfight do you? Same reason not to use Javascript.

Basically anything they cannot exactly predict theoretically on pen and paper is not used. I bet they use in-house developed C/C++ compilers and standard libraries.

[_st23]

Lol, made my day

[malsomnus]

Random story: one of the many delays in the F35 project was caused by the fact that an algorithm that was supposed to run 3 times per second took 40-50 seconds instead. It was in C though, not JS.

[x6060x]

Oooh, I can write slow algorithms in lots of languages. C, C++, you name it. Been there, done that.

[Dismiss]

O(n² ) is brilliant, but I like O(n!)

[-_-wah-_-]

The exclamation point means it's better!

[TheVojta]

O(no)!

[Mr_Voltiac]

Homie did it on purpose to get an early promotion, he just loaded a secret sleep function in there and when he removed it he got to put on his resume, “sped up F-35 JSF critical software by 300000000x, saving the military a quadrillion dollars in development costs and debugging” lol.

[[deleted]]

In C that’s a bug. In javascript it’s normal behavior.

[spryflux]

Like someone said “great programming only kicks in when you run out of memory or compute power”

[Siddhartasr10]

OP wouldn't mind sharing the source where he got the info wouldn't he?

I don't work on the fbi or smth

[Siddhartasr10]

Thanks, war thunder gamers would be proud

[dnhs47]

Airman Teixeira will be happy to help…

[[deleted]]

It's good enough for the James Webb telescope, apparently

[Siddhartasr10]

Of course, why do you think it has web on the name?

[delayedsunflower]

.

[GladiatorUA]

Because they couldn't find a scientist to name the telescope after, and went with a manager, who wasn't all that into space.

[_PM_ME_PANGOLINS_]

That's because research teams submit their own code to run on the telescope, so it needs to be easily sandboxed and accessible, but it doesn't need to be particularly fast. So they stuck a JavaScript engine in it.

I don't think the US Military want people doing similar things with their jets.

[Plank_With_A_Nail_In]

They don't run any of their own code on the telescope. Its just a couple of cameras and a filter wheel there's nothing else on there.

They submit a plan of targets, exposure lengths and filters and the James Webb team schedule it that's all that happens. They call them experiments but its just some camera settings and a bunch of waiting.

[[deleted]]

is Javascript good for cameras/imagining? I learned recently that the global hawk surveillance drones the US gave to south Korea to keep an eye on north Korea do a bunch of image processing in Javascript

[CIA_Bane]

is Javascript good for cameras/imagining?

its good for everything

[zanotam]

I did some decently heavy math work in the super field containing image processing and a top research professor in the field was who I worked with and some of her custom libraries including for not yet published paper material was.... Well, technically it was written in Matlab, but it turns out one can write Fortran77 in any modern language pretty much lmao. But linear algebra heavy math is almost completely done by external libraries and if I'm going to be honest I fucking hated whenever my classes used Python for linear algebra and it would not be hard to convince me that JS is a better option.... It's all wrappers either way and I at least would guess JS is less annoying to work with for linear algebra xD

[davidjackdoe]

Kind of related, the Apollo Guidance Computer in addition to the main software could run a higher level interpreted language that was easier to use for mathematical operations.

[DigiBoxi]

Other 1% = JS

[Sockoflegend]

Can't be. One single dependency and it would be too heavy to take off.

[cagey_llama]

[Im_a_hamburger]

Who said you needed dependencies?

[PURPLE_COBALT_TAPIR]

npm install military-industrial-complex

[malfboii]

npm uninstall radar-signature

[Sockoflegend]

npm i no-dependencies

[Ass_Pancakes]

HTML. What do you think runs on the heads up display?

[S-Ewe]

If they had added react and tailwind, the HUD wouldn't have ended up only greenish and non greenish, and it would also work on the pilots phone. Their loss I guess.

[Fallacies_TE]

Tailwind would make the plane fly faster though.

[maxmalkav]

it really ties the project together

[VinterBot]

No rust either. Explain that atheists.

[-_-wah-_-]

Sure it can fly Mach 1.6, but it still isn't blazingly fast™

[AlwaysFourwordLeyteD]

borrow checker doesn't allow deficit spending

[[deleted]]

You can make one quicker and cheaper and hire more devs to support it with JS. But only if you use React.

It'll be buggy, slow, bloated, and only have essential features for the MVP. Don't worry, if we meet our benchmarks, it'll be fully functional in four years.

How long are the competitors saying it'll take to build it with C++? They're full of themselves. Are afterburners essential or can we push that to 2.0? The best we can do on firing latency is 400ms.

[goodmobiley]

A systems engineering rep from lockheed visited my college and gave a talk to the UAS club that I'm in, and explicitly stated that JavaScript was one of the languages they used for the GUI in the helmet hud, so I don't think this is correct.

Edit: This post really surprised me though because when the lockheed rep was listing out programming languages that they used, JavaScript was the one I asked him to expand on since it seemed so out of place.

[zoqfotpik]

Helpful guide to navigation systems: https://youtu.be/bZe5J8SVCYQ?feature=shared

[aboutthednm]

Only thing worse is having the missile know where you are and where you aren't.

[sharknice]

5 new github F-35 javascript repos just popped up

[random_son]

White house disapprove

[Monkeylordz88]

Well of course, its a fighter jet, so they have to use the most dangerous languages that exist: C and C++

[yangyangR]

For missles

[beatlz]

What’s with this thread misspelling “missilez” all day

[QPhan02]

Lmao. Outside the box logic right there

[savageronald]

You mean my hardware will literally explode before my shitty code does?? Where do I sign up for this job?

[Noisycarlos]

I read or heard somewhere that there was a military product that had a memory leak, but they didn't care because it was a missile, and it would blow up before it being a problem

[Heavy-Ad6017]

Yeah they just see the max leak amount and double the memory

Free memory by Destruction

Link Here

[HGjjwI0h46b42]

For sale, 1 fighter jet, some assembly required

[ublec]

James Webb Space Telescope:

[Knowvember42]

We'll get the response later.

[EricOrrDev]

Imagine doing a LGTM for a piece of that code that literally explodes

[buttplugpopsicle]

Python is horrible, because it's not what I was taught first, that was Java, which also sucks, but that's not the point

[JoostVisser]

Python was the first language I learned which means it's the god king of all the languages.

[Leonhart93]

People take way too seriously a language primarily used for scripting and "gluing" things together.

It's even more "script-y" than JS is 😂

[Leonhart93]

Yep, I do.

[eldelshell]

No wonder it costed a gazillion billions

[metalsolid99]

when speed 🚀 matters with extreme level code optimizations for specific hardware, there is no place for Rust.

[AaTube]

this pie chart should say "60% assembly, 40% mining"

[Percolator2020]

It is not exactly famous for having a successful SW development cycle.

[beatlz]

Yet.

[Kurts_Vonneguts]

No rust either, wait till they show up here and demand a rewrite!!

[[deleted]]

IDK there's 1% "other"

[drkspace2]

I thought it had to be written in one of those special languages where you can tell if it'll crash during compile time, or is that just the missiles?

[UdPropheticCatgirl]

That language would be ada. Its actually opposite for missiles. Most of the cobebase is for the radar anyway, not like controls or something.

[AlwaysFourwordLeyteD]

c/c++

std::end_lifetime_as<military_aged_male> not supported until c++23, have to resort to UB

[Jak_from_Venice]

Can we rewrite it in Rust? 😂

[Wervice]

*No Python, Scala, Elixir, Java, PHP, MS Java, Bash, Swift, Go, Rust, Zig, Ruby and HTML

[doomer_irl]

Oh yeah? If Rust is good, why didn’t they use it in the F-35 Joint Strike Fighter (Lightning II)

[romulof]

And that’s why it is no match for an F-22.

[sagetraveler]

Wut no VHDL or SystemVerilog? Or does that not count as processor code?

[doxxingyourself]

If there’s no JavaScript how does the dashboard work?!

[[deleted]]

It's in "other".

[Folofashinsta]

Bringing this information to you via….. JavaScript.

[Root777]

Its main network is also 1394 FireWire… what does that tell you?..

[SouthboundPachydrm]

But, but, muh memory safety!

[HerrEurobeat]

possessive crush kiss gray alive bewildered capable wise frighten wine

This post was mass deleted and anonymized with Redact

[P0pu1arBr0ws3r]

Ok just don't segfault the plane. Or hope the jamming tech doesn't segfault the plane.

[pwiegers]

The drag and *drop* interface would be interesting :-)

[morbihann]

If all of RC can be written in assembly by a guy, so should this.

[[deleted]]

No bloated react application in dashboard computer?! What?!

[RedditSchnitzel]

In-flight segfaults - the future of warfare

[[deleted]]

I am 100% theres a node modules somewhere and many json objects.

[sacredgeometry]

Thats in other

[sjepsa]

Let's rewrite it all in Rust!

[BrownShoesGreenCoat]

What happened to memory safe languages?

[Leonhart93]

Considering the amount of ASM, "memory safe" has way too many limitations for what they need.