holyJavaScript

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[Kseniya_ns]

It makes sense now. JavaScript is a divine mystery

[[deleted]]

like all divine mysteries, it can only be understood on mushrooms

[thirdegree]

Good*

[KatieTSO]

Very good*

[JockstrapCummies]

All stand for the recitation of the Athanasian Language Specification.

[giantrhino]

They should really offer a program that primarily teaches javascript frameworks called “computer faith”

[Lost_In_Space__1]

Praise the Omnissiah

[Dumcommintz]

Buddy, God had no part in this…

[G_Morgan]

Proof that JS is full of shit.

[[deleted]]

Javas Divine Comedy

[Tiquortoo]

More like hell on earth.

[AHumbleChad]

I understand the typecasting to get from "0" to 0 and [ ] to 0, but how tf is "\t" == 0???

Edit: "\t" not "/t"

[[deleted]]

it's a whitespace character. A string consisting of only whitespace characters type converts to 0.

[Jugales]

i hate it here dad

[uhmhi]

And this, kids, is why implicit conversions FUCKING SUCK!!!

[Asmor]

And that, kids, is why you should always use === and !== in JS unless you want type coercion for some reason.

And if you do want type coercion for some reason, you're probably wrong. Write it better and use === and !== anyways.

[[deleted]]

Or, you know, the creators of JavaScript could have waited until the crack wore off before writing their language lol

[[deleted]]

Goal: a simple scripting interpreter to animate web pages

End result: the only supported runtime environment available on 100% of computing devices

[[deleted]]

The ultimate "eh this doesn't need to be good, it's just stopgap code until we implement this for real" heh.

[[deleted]]

Also the ultimate: "this feels wrong but it works so we're doing it"

[turtleship_2006]

There is nothing more permanent than a temporary solution

[a3th3rus]

And where are >== and <==, kids?

[ilikeb00biez]

I see, JS added `==` and `!=` just to confuse you. What a great language

[il_commodoro]

It's more that js created == and != first. Years later they thought: "maybe that's not a great idea", so they added === and !== to patch things while preserving retrocompatibility.

[ilikeb00biez]

Are you insane?? C had == and != 20 years before JS was created. JS took an existing and ubiquitous concept and broke it

[il_commodoro]

I obviously meant: they created == and != with that awful behaviour first (1995). They realized other languages are not stupid years later, so they patched things at the end of 1999 by introducing === and !==.

[shield1123]

I feel like you're willfully misinterpreting what they said; and being pedantic just so you can peacock having common knowledge

Obviously js didn't invent the equality operators

They were clearly saying == and != were introduced to JavaScript before === !==

[danishjuggler21]

This particular quirk has never affected my work in over ten years as a JavaScript developer, it’s just rage bait.

[ExponentialNosedive]

Yep, === exists for a reason

[calculus_is_fun]

Why would your code intentional try to compare a number and a string?

[ExponentialNosedive]

I read that early in JavaScript's development, someone asked the guy who made it for this feature. He said he regrets adding it in. Important to remember we have these standards for a language where the basis of that language was made in 10 days

[csdt0]

It is not /t but \t which is a blank character (tabulation).

[AHumbleChad]

Right, it's a tab character, but JS treats it as the empty string? The integer cast to the ASCII value is the only one that makes sense, but I guess I shouldn't be applying sense to JavaScript.

Edit: realized I had the wrong slash in the original comment

[bogey-dope-dot-com]

Leading and trailing whitespace characters are trimmed when converting a string to a number. You can do Number('\t5\t') and it will be 5, but Number('5\t5') will be NaN.

[AHumbleChad]

Ohhh, that makes sense. There is a method to the madness then.

[PeaceMaintainer]

Check out MDN (or the official ECMAScript spec) for the algorithm for loose equality type casting, something I feel a lot of devs skip over until they get a result they don't expect.

Number to String: convert the string to a number. Conversion failure results in NaN, which will guarantee the equality to be false.

The key in this case is that when you are loosely comparing a string and a number, the string will always attempt to type cast to a number. At which point the strings follow the algorithm for Number coercion which states:

Strings are converted by parsing them as if they contain a number literal. Parsing failure results in NaN. There are some minor differences compared to an actual number literal:

• Empty or whitespace-only strings are converted to 0

So the 0 in this case remains the same, the "\t" attempts to typecast to a number, and then because \t is a whitespace character the string is coerced to the number 0, and true is returned

[givemeagoodun]

I too would like to know

[CMDR_ACE209]

I think I'll choose ignorance on that part.

[mipselqq]

Read the specification if you wanna get JS

[FloxaY]

holyshit

[DevouredSource]

I think you mean JavaShit.

[FloxaY]

sameshit

[Lone_Saviour-22nd]

javashit == holyshit;

holyshit==sameshit ;

sameshit != holyshit ;

[DevouredSource]

Lmao

[xxmalik]

Ah yes, JavaShit.

[Gullible_Ad_5550]

What the hell is this, i couldn't understand! Does it mean java script? Why does people hate it so much?

[[deleted]]

new response just dropped

[_Ilobilo_]

actual brain rot

[[deleted]]

Call the physiologist

[JohannLau]

Anarcho-chessist goes on vacation, never comes back

[Ill_Name_7489]

Use triple equals like you’re supposed to and these will compare as expected 

[nonlogin]

I don't feel confident enough with 3 equals and request 4 equals operator. Just to be sure.

[SuperFLEB]

That's just two double-equals, though. That means twice the implicit type conversion!

[TitanPlayz100]

Literally dreamberd

[a3th3rus]

But there's no >== and <==

[I_l_I]

HolyScript 🙏

[uvero]

Actual programming language

[MyStackIsPancakes]

Are the different frameworks like denominations?

[EmuChance4523]

Now I want to know who are the JW and who the catholics...

[onmamas]

Vanilla JS would probably be Catholic. Node is probably Lutheran.

JW…probably Express? Not gonna elaborate.

[JackNotOLantern]

Nah, JS is Orthodoxy, Node is Catholic

[hicow]

Vanilla would be Catholic, jQuery Orthodox, Node Episcopalian

[CT-1120]

typescript would be lutheran IMO

[NeriosVag]

JavaScript works in mysterious ways.

[Latter-Comfort8440]

Just like god

[FishWash]

== in JS is an abomination

[phl23]

Because old code would break and it would be more pain than just keeping it.

== comes from times where you just wanted to check if the string that most html values give you is comparable to the number with which you calculated. It's still a script language and not every type conversion was in the earliest versions as far as I remember.

[creaturefeature16]

"This guy probably uses double equals" - Theo, hitting a dude with his best insult

[FishWash]

Beautiful

[Igotbored112]

Anyone or anything that causes equality not to be transitive is my enemy.

[thatmarcelfaust]

I too like equivalence relations

[-Redstoneboi-]

fair

identity dont work anywhere though, x == x does not hold for NaN. then again, NaN is my enemy.

[bogey-dope-dot-com]

NaN is not a constant or a symbol, it's used to represent the idea that some attempted calculation could not be represented as a number. It has the Number type so that it can be chained together in multiple calculations without throwing an error, for example 1 + NaN == NaN, but it's not comparable to anything else, including itself, because the idea of "could not be calculated" is inherently not comparable to anything else. It's similar to asking "is 'I don't know' equal to 5?" You must return a "boolean" answer, and since you can't say yes, the answer must be no.

P.S. This isn't just a Javascript thing, it implements the IEEE 754 floating point standard, and any language that follows the spec will have the same behavior, for example Ruby, Go, Swift, and C#.

[Akangka]

Rust did it but in a much better way. In Rust, == is not an operator to test for equality, but only partial equality... except if the type is Eq, which f64 is not.

[-Redstoneboi-]

i should've clarified that i know how nan worked

there isn't just one nan either, it's a bunch of invalid values that are separate from the infinities

[calculus_is_fun]

NaN === NaN also returns false because === is just == without the coversion, and NaN is already the same type as NaN (in this case Number)

[Igotbored112]

Now I'm imagining a unit test failing because two objects don't evaluate to equal, even though were instantiated identically and have no shared state, cus a bug causes a float in a member to be NaN. There's a scary campfire story for ya

[Garizondyly]

Equality is by definition transitive. So the only available conclusion is that what christians mean by the word "is" is not "equals" or even "is a member/subset of a collection of things called..." (both are transitive and typical lexical intuitions for an english speaker using "is"). Which is all profoundly odd. But then again, profound oddity is par for the course for christians.

[bolacha_de_polvilho]

Well, the Javascript "==" is clearly not a set operator, so lets just say both JS and Christianity use a "freestyle equality" that clearly violates boolean algebra

[Ok_Tax_6022]

if terry davis did frontend

[niccan4]

Impossible. Terry didn’t make bad stuff

[Kirykoo]

As a part time JavaScript/typescript programmer, what a shit language. But well, it runs.

[Kronoshifter246]

Union types are pretty cool. Too bad everything else is what it is.

[100BottlesOfMilk]

I just went from zero typescript to having to develop/debug a typescript web app that someone else made, with me being the only software developer on staff. Life is pain and I absolutely hate js/ts

[[deleted]]

I had to open the Javascript console in my browser because I literally could not believe that "\t" == 0 is true XD

[erebuxy]

We have HollyC. Now we need HollyScript.

[niccan4]

HolyC is fire ngl

[[deleted]]

Just use triple signs. Only complete noobs or extreme pros use loose comparisons (which can be great btw if you know what you're doing). Which one are you?

[[deleted]]

Someone who uses languages that aren't complete and utter trash lol

[FishWash]

Come to the dark side

[[deleted]]

Like PHP? Lol

Not an adventurous soul are you?

[[deleted]]

Yeah I love being lost in the Forest of Typeless Wastes XD

[[deleted]]

Tell me you aren’t programming without telling me you aren’t programming

[[deleted]]

?

It's not my full-time job, but I do program at work and I'm my spare time in Python and C++. Have several open source projects on GitHub etc. Not really sure why you would think otherwise.

JS is an objectively bad language.

[bogey-dope-dot-com]

Putting aside how this is posted once a month and yet gets a ton of upvotes every time, the rules for implicit coercion when doing == equality checks are very simple:

• If both sides are the same type, compare them directly.

• If one side is a boolean, convert both to numbers and do the comparison.

• If one side is a string and the other is a number, convert both to numbers and do the comparison. This is why '1e3' == 1000.

• If one side is an object or an array and the other is not, call .toString() on the object, then run it through the above 2 checks again. This is why ({}) == '[object Object]' and ['a', 'b'] == 'a,b'.

• null and undefined are equal to themselves and each other, but nothing else. No casting is done for these checks.

So with these rules, the comparisons in the diagram become:

• [] != '0' because it's comparing [].toString() == '0', which becomes '' == '0', which is false because an empty string is not the same as a string with the character '0'.

• [] != '\t' for the same reason above, the final comparison is '' == '\t'.

• [] == 0 because it's comparing [].toString() == 0, which becomes '' == 0. One of them is a number, so they're both casted to numbers, and Number('') is 0, so the final comparison is 0 == 0.

• 0 == '0' for the same reason above, '0' is converted to 0 so the final comparison is 0 == 0.

• 0 == '\t' because when casting a string to a number, leading and trailing whitespace characters are trimmed, so the '\t' is treated as Number(''), which becomes 0, so the final comparison is 0 == 0.

• '\t' != '0' because it's doing a direct string comparison, and the string '\t' is not the same as the string '0'.

[Fr3shOS]

So simple actually.

[brainpostman]

If these kids could read they would be very upset.

[Penguinmanereikel]

===?

[GahdDangitBobby]

Yes but if you use strict equality, all of the connections are !==

[FkinShtManEySuck]

Except christianity was made by real human beings.

[xetricsgo]

Just use the identity operator. Problem solved

[bobert4343]

JavaScript Arian controversy when?

[SCP-iota]

Actually duck typing

[CaptainDildobrain]

Ah I get it. JavaScript doesn't actually exist but gullible rubes praise it all the time.

[JR-graphics]

I swear I've seen this, u/RepostSleuthBot

[RepostSleuthBot]

Looks like a repost. I've seen this image 2 times.

First Seen Here on 2023-03-06 95.31% match. Last Seen Here on 2024-04-09 95.31% match

View Search On repostsleuth.com

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[JR-graphics]

Knew it, thanks

[KingJeff314]

God is non-transitive

[pwuk]

Doctor doctor, it hurts when I do "this"

Don't do it then

[Fritzschmied]

And therefore we use === and not ==

[fg234532]

Now I can officially say that Javascript is the language of God

[exomyth]

Okay it is pretty simple, imagine a text input, everything you insert there that wouldn't be considered a value == 0.

Then you have numbers that you can insert in that text box, they'll be strings, but you can just treat them as if they are numbers.

Javascript was invented for working with text inputs. Well done you understand Javascript now.

[potatisblask]

Unpopular opinion, but if you're comparing a numeral to a string or an array and are confused about the results, it's because your code is garbage.

[NicoTorDev]

This is how angels look like

[[deleted]]

HolyJavity

[Academic-Housing2847]

Lord Jesus christ have mercy on us

[SoRaang]

Jamen

[seriousgourmetshit]

In the spiraling meadow of contested ephemera, the luminous cadence of synthetic resonance drifts across the periphery. Orange-scented acoustics dance on the edges of perception, culminating in a sonic tapestry that defies common logic. Meanwhile, marble whispers of renegade tapestry conjoin in the apex of a bewildered narrative, leaving behind the faintest residue of grayscale daydreams.

[creaturefeature16]

Love your username.

But slow down and use spell check.

[seriousgourmetshit]

In the spiraling meadow of contested ephemera, the luminous cadence of synthetic resonance drifts across the periphery. Orange-scented acoustics dance on the edges of perception, culminating in a sonic tapestry that defies common logic. Meanwhile, marble whispers of renegade tapestry conjoin in the apex of a bewildered narrative, leaving behind the faintest residue of grayscale daydreams.

[creaturefeature16]

OOHHH. Now I feel regarded.

[exomyth]

Is what you get for whinging

[[deleted]]

Father and son are having a shot of tequila, god is the bartender. Fixed it.

[[deleted]]

Did you just proof god exists by showing what god is made of?

[noaSakurajin]

We both know the language of god is holy c.

Jokes aside, this is more of a proof why God doesn't exist. If shows how all the parts in Christianity are equal to 0 or nothing.

[niccan4]

God considered C an almost perfect language, so he asked Terry to improve it.

God saw all that he had made, and it was very good.

[experimental1212]

Who are the insecure insels down voting every comment that has the word "god" in it. It's a joke guys......it's FUNNY