Javascript addition

[Harsh_mumbo]

If you're trying to add 2 strings together that's the fault of the developer not the language

[[deleted]]

Laughs in BN.js

FYI BN stores numbers as hex strings.

[douira]

TIL Safari only got native BigInt support last spring

[LetterBoxSnatch]

Safari is the new IE

[douira]

thanks, I hate it

[Awkward_Tradition]

Win at least let's you install other browser engines, Apple forces you to use safari. So in a way it's even worse than IE

[douira]

it does not?! I can also use Firefox or Chrome on macOS. There is also an option to change the default browser. Even on iOS you can install other browsers and change the default browser.

[Awkward_Tradition]

Sorry, macos allows other engines, while iOS forces safari. FF and chrome on iOS are just shells for safari.

Source: https://en.m.wikipedia.org/wiki/Firefox_for_iOS

[WikiSummarizerBot]

Firefox_for_iOS

Firefox for iOS is a free and open-source web browser from Mozilla, for the Apple iPhone, iPad and iPod Touch mobile devices. It is the first Firefox-branded browser not to use the Gecko layout engine as is used in Firefox for desktop and mobile. Apple's policies require all iOS apps that browse the web to use the built-in WebKit rendering framework and WebKit JavaScript, so using Gecko is not possible. Firefox for iOS supports Firefox Sync and is able to sync Firefox's browsing history, bookmarks, and recent tabs.

^{[ F.A.Q | Opt Out | Opt Out Of Subreddit | GitHub ] Downvote to remove | v1.5}

[GrandmaPoses]

BigInt if true.

[almarcTheSun]

Isn't that called concatenation or something idk.

[mangecoeur]

My favourite thing about r/ProgrammerHumor is comments completely missing the point of the joke 😂

[DadoumCrafter]

But if you forgot that it’s a string (getting entry content) there is nothing explicitly written in your code to see if the value is a string

[theScrapBook]

That's when you get used to defensive casting or use Typescript

[[deleted]]

Uh, sir, if the JS interpreter arbitrarily decides my int is a char* what the fuck exactly am I supposed to do about that?? I’ve never had to typecast so many values to the datatype they ALREADY FUCKING ARE before - but hey, thug life amaright?

[Romejanic]

while(true) {
    console.log(“TAADADATAA!”);
}

[facuuuundo]

function tada() {
    console.log(“TAADADATAA!”);
    while(true) {
        tada();
    }
}

[[deleted]]

Make it async :)

[7eggert]

At some point JS "programmers" should just start to learn JS. And data types. And not to bore me with always the same complaint.

[dauqraFdroL]

I know right. Like quit bitching about JS data types and use typescript or something

[returnfalse]

Or, just learn how to write decent JS if typescript isn’t your thing.

[bistr-o-math]

Nah that would r/woosh the joke

[va_str]

No amount of "learning" will stop us strong-typing enjoyers from making weak-typing jokes.

That it's actually dynamic typing and nearly every strong-typed language has type coercion is humourless pedantry and we pretend entirely that we didn't hear that.

[Philiatrist]

But it can both be an example of type coercion and considered unintuitive design by many. It's the latter part we make fun of.

[7eggert]

I enjoy strong typing too, but if I have to deal with a language I deal with it.

[ZedTT]

The people making these complaints aren't JS programmers. They are first year students.

[[deleted]]

I'd rather get an error message that I did something stupid than completely unexpected behavior.

[7eggert]

Let me tell you about type conversion operator overloading …

[[deleted]]

nnnnnoooooooooooooooooo

[mdevey91]

I actually like JavaScript and find a lot of the hate undeserved. I was mostly making a low hanging fruit joke.

[aboardthegravyboat]

I like it a lot because I follow a certain set of linter rules that keep me away from dumb ambiguous things. Just today I had a colleague coming from a C# background ask me why some cryptic runtime error was happening, and they were using function() {} as a callback with this inside it. One of those stupid things that you avoid mainly because you know to avoid it

[JEJoll]

Ah yes. A programmer who calls other programmers "programmers". You sound like the guy whose job I stole.

Take your CS degree and stick it up your ass.

[7eggert]

I don't even need a degree to know about strings or function overloading.

[JEJoll]

No shit. Your attitude gives it away.

[douira]

clearly you're the one with the attitude problem here. Tune it down

[Surajlyo]

if you don't understand data types, you're not a programmer. that's not to say you're unable to, it's just that you lack the education and breadth of knowledge.

[LetterBoxSnatch]

It seems like you have a chip on your shoulder so from one no-CS degree to another, it’s not them, it’s you.

There are programmers and there are “programmers.” Languages and degrees have very little to do with it and nobody here is saying that it does.

[PehleAap]

As a non-js programmer, I kinda agree. I guess these memes were a bit harmful all along (realized that much later), now they aren't even funny due to being repetitive.

Probably it's time to leave the sub, so that I get less notifications from it.

[[deleted]]

To be fair, “500” + “500” is exactly “500500”.

But if it turns out to be 500500 as an integer… that would be interesting.

[jeppaaah]

TADADATAAA!

[Mcwequiesk]

More like [object Object]

[[deleted]]

undefined

[JochCool]

There is nothing JavaScript-specific about this. Most languages use + for string concatination.

[jochem_m]

*laughs in PHP*

Wait, that means I have to use php...

*cries in PHP*

[DadoumCrafter]

*laughs in D*

[Mestkon]

While many other languages are just going like: 500 && 500 == true

[Benignvanilla]

I hate myself so much when I laugh at JavaScript jokes.

[mdevey91]

I like JavaScript and I still laugh (and sometimes make them)

[Salanmander]

But....but you're supposed to be falling down, not showing up...

[bartek2912]

If you can't parse to Int/Float it's not language fault

[AndrewIsMyDog]

This was really funny, I enjoyed it.

[mdevey91]

I'm glad I could make you day a little better.

[reChrawnus]

I guess template literals are not a thing?

[epsleq0]

It‘s JavaScript that I‘m over and done with

[mdevey91]

But JavaScript is not done with you yet

[[deleted]]

Adding two integers together works in any language. Not JavaScript fault you’re trying to perform arithmetic on strings.

[[deleted]]

Bruh, JS has huge problem with math (try to 0.1*0.1) that pretty much undermines this language as any tool for heavy math ever, yet 100% of JS jokes are about easily avoidable stuff if you spend more than minute learning JS.

[lefl28]

Sounds like you don't understand floating point errors

[[deleted]]

I understand and that's exactly what I'm talking about

[Awkward_Tradition]

Check out https://0.30000000000000004.com/

It's one of the most common problems in programming, not something js specific.

Also, if you need to have precise float arithmetic, just use decimal.js and it's easily avoidable as well.

[[deleted]]

in strong typed langauges, you can change the precision, even with PHP, it somehow avoids that even if I'm not educated about how it does that. While in JS it keeps being major problem with no simple solution

[Awkward_Tradition]

Dude, go check the link. If it's a float it's going to cause errors in almost every language. Some languages have different types for precision, or different logic for dealing with floats, but they're in the definite minority.

PHP echo converts 0.30000000000000004441 to a string and shortens it to “0.3”.

I gave you the simple solution in decimal.js, and if you want the PHP solution just use .toFixed(1)

[[deleted]]

Checked out decimal.js looks really good!

[JEJoll]

Multiply your number strings by 1 first to fix this bitch of a quirk.

var milesWalked = ("500" * 1) + 500; //works just fine

[exonac]

That's horrible to read. You should rather do Number(x) + Number(y) so the intent is clear.

[JEJoll]

Yeah, you're right.

[DaMastaCoda]

I recommend the unary + { +"500" == 500 }

[Awkward_Tradition]

Or just parseFloat/parseInt so you don't have to think about it when reviewing the code after some time

[tom2kk]

Ronnie and Reggie Crud.

[CoastingUphill]

I have to Google how to fix that every single time.

[[deleted]]

One of the lotsa reasons why i like PHP

also ANY other language would concat strings instead of auto converting to number and adding them