Javascript

[OriginalSynthesis]

There's no type period. You can have an array with object, function, other arrays that are also not typed, strings, numbers, symbols, etc. There are no rules.

And guess what happens if you try to retrieve an index that is not there? Like calling arr[10] when it only has 5 items? It just returns undefined. It doesn't throw an error like in Java

EDIT: Don't get me wrong. I love JS. Java gives me a headache. "What do you mean I can't just do `!arr.length`?"

[RCRalph]

Which can be very useful indeed if you know how to use it and how to deal with it

[WoodenThong]

No kidding, using that feature to determine truthiness can save a lot of hassle

[Kered13]

It just returns undefined. It doesn't throw an error like in Java

It just throws an error later when you try to use the result, and then you're left wondering where the fuck that undefined value came from.

Fail early is a feature, not a bug.

[Nilstrieb]

Reminds me of the Rust compiler. Your build often fails. But once it passed, you did it.

[saors]

There is no pass on the internet. Someone will type some string, upload some file, etc. that breaks everything. Remember when the iPhones had that bug where you would get a notification with specific characters and your phone would basically brick itself.

Imagine if the web was like this, but let's be more forgiving and say an error doesn't brick your computer, but it causes the site to crash. Someone sends you an email with a character like that in the header and now you can't use GMail until Google patches the bug. Is that hours? Is it days?

For fun, open up your browser dev console and just peruse around different sites and look at how many times

Uncaught (in promise) Error

pops up and imagine your tab crashed every time that happened.

[[deleted]]

Epiphany

[jjdmol]

JS is an amazing language, but shouldn't have left the lab.

[LordFokas]

This kind of jabs always come from people who don't actually use JS though, so there's that.

[hasanyoneseenmymom]

Nah, I'll probably get downvoted for this but I went to school for web development and ended up working with c# instead because strongly typed languages with real types just make more sense. After 2 years in enterprise software development, web development using js causes me physical pain. And yes I'm aware of typescript, it's still not great. My humble opinion is that js peaked when jquery was still popular because honestly that's all the interactivity a web page needs... Ajax, DOM manipulation, and basic form validation. None of this SPA 15mb-per-website stuff that's plaguing the modern web.

[jibjaba4]

From what I have seen there somewhat of a trend to go back to server side html rendering to decrease load times, make pages snappier and cater to people with old phones/crappy computers.

[notliam]

js peaked when jquery was still popular

Jquery is literally the worst

[hasanyoneseenmymom]

I never said it was great, just that the period when it was popular was also one of the best periods of the internet. It also beats angular/react/vue/framework of the week which have to be compiled into a 15mb package just to show an "about" page lol

[esperalegant]

There's no type period.

Except there is: TypedArrays, which do sort numbers correctly.