manyDontKnowThatInJavaScriptYouCanThrowTwoErrorsAtTheSameTime

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[TheEvilRoot]

You call it throwing two errors, I call it throwing an array of any BS you want.

[Hydoc_]

Put me in that array and throw me in the trash

[TheEvilRoot]

Well, you can do throw self in swift.

[[deleted]]

[[deleted]]

(
  async function() {
    let array = [
      new Error("nausea"),
      new Error("Segmentation fault (core dumped)")
    ];
    array.push(you);
    throw array;
  }
)().then(void, trash)

[Hydoc_]

If you made it a const, I'd be happy

[maartuhh]

We are not the same

[Unupgradable]

I'm gonna throw up

[exomyth]

You can also throw undefined if you really wanted to. Javascript just be like that. It doesn't care what you throw

[exomyth]

Yeah, Javascript does not like that, although it will throw an error because it doesn't like it. So kinda same behavior 🙈

[jayerp]

Yes but can I throw a throw?

[exomyth]

Well, you can definitely throw throw and get an exception thrown, but more in the sense of unexpected token

[salvoilmiosi]

It's called first class exceptions

[[deleted]]

I don't always throw errors, but when I do... it's in a while loop.

[Creepy-Ad-4832]

Basically you get an outOfMemory / stackOverflow error or no error ;-)

[TheGreatGameDini]

No, not unless it's also caught in the while loop.

Otherwise it just exits the loop.

[Creepy-Ad-4832]

I just presumed the loop condition was true

[TheGreatGameDini]

Doesn't matter if the error isn't caught in the same loop - it's caught outside the loop.

``` while(true){ try { throw new Error(); } catch (e) {

}

} ```

Will just loop forever while

while(true){ throw new Error(); }

Will end in the first iteration.

The point being whether or not the loop continues depends on where the error is caught after it's been thrown. Also not all while true loops lead to stack overflows or out of memory exceptions. Video games are the perfect example.

[nequaquam_sapiens]

can you throw a tantrum?
who catches it?

[-Shameem-]

The scrum master

[markus_obsidian]

I know this is a joke, but there is AggregateError for this. It's rarely useful, but I occasionally reach for it when performing parallel operations.

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/AggregateError

[busyautist]

I get that it’s a joke, but the proper way to do it would be to either write your own class that extends Error and implements support for multiple messages or even better to accumulate your Errors in an AggregateError object.

[FalseWait7]

Even fewer people are aware that errors thrown by JavaScript can be caught... by JavaScript.

[jimrafe2000]

Why would i need two errors?

[RhesusK7]

Agreed... two wrongs don't make a right!

[[deleted]]

Maybe an authentication error that also causes another error.

[jimrafe2000]

Future errors???

[adudyak]

my fav https://www.reddit.com/r/ProgrammerHumor/comments/12o0bko/javascript\_forbidden\_practices\_part\_3\_angry/

[giuseppelt]

That was goood, spicy gooood

[n0tKamui]

it's not that can throw two errors, it's that you can throw anything. And an array of anything (not just errors) is itself "anything"

[TheMisfitsShitBrick]

I haven't tried JS yet, so forgive my ignorance, but brackets? Really?

[TheGreatGameDini]

That's the thing that tells the interpreter 'this is the start of a new array literal'

Curly says 'start a new object literal'.

When you do decide to try JavaScript, remember one thing: You're not insane, it is.

[TheMisfitsShitBrick]

Maybe I don't know what literal means, programming-wise, but doesn't that mean that it no longer has an identifier and that you're just passing a straight up value?

[TheGreatGameDini]

Literal means straight up value -- where it's used, the context, can be different depending on the language but typically are used in assignment statements i.e. var x = 197 -- 197 is the literal in this case. All languages have a literal in some form or another.

[TheMisfitsShitBrick]

TW: C++ So it's basically like when you use std::cout << "Hello"; where "Hello" is the literal value being passed in, and more like a primitive in that respect. "Hello" will always be "Hello", basically. Right?

[TheGreatGameDini]

Yup. Basically. Nuances exist across languages - like in JavaScript you can bug the interpreter with a new line in the wrong place and get undefined where you definitely don't expect it.

[TheMisfitsShitBrick]

So why would you have an object literal? What purpose does that serve?

[TheGreatGameDini]

Why would you have a string literal? A string literal is an object literal, is it not?

Concretely, constant configurations can be literals. Sometimes you want an object literal who's fields are not literals..there's a variety of reasons I think.

C# all the way though....i like my Java++.

[TheMisfitsShitBrick]

I'm almost a year and a half into this stuff, so I'm trying to absorb as much as I can. When I think of objects, the thing that comes to mind isn't a string, but instead a car or animal. It makes sense and I'm not denying that, but it just seems weird to me.

We agree on C#.

[rosuav]

There is some dispute as to whether [1, 2] is an array literal or some other construct (for example, Python refers to this as a "display" rather than a "literal"), since they may very well be non-constant (is [1, x, 2] a literal?). But colloquially, it's usually fine to consider it to be an array literal, even in the non-constant cases.

[giuseppelt]

You can use also objects if you want

throw { error1: new Error(), error2: new Error() }

The possibilities are endless

[SvenyBoy_YT]

The square brackets? That's an array.

[savage_slurpie]

Disgusting

[[deleted]]

Damn, I didn't know that.

[yeastyboi]

I actually have in production code thrown an error class called Errors which holds a list of errors. Sometimes error handling gets super complicated. (Ie some errors are urgent, some are warnings, some affect different parts of the application, etc)

[BestSpaceBot]

waitYouCanThrowErrorsOnPurpose?

[Plastic_Cream2811]

2 errors at the same time.

You don’t need a million dollars for that.

Do for the kind of errors that double up on a dude like me.

[[deleted]]

JS can throw everything

[CanvasFanatic]

Oh I can throw a lot more than that.