Asklemmy

43966 readers

962 users here now

A loosely moderated place to ask open-ended questions

Search asklemmy 🔍

If your post meets the following criteria, it's welcome here!

Open-ended question
Not offensive: at this point, we do not have the bandwidth to moderate overtly political discussions. Assume best intent and be excellent to each other.
Not regarding using or support for Lemmy: context, see the list of support communities and tools for finding communities below
Not ad nauseam inducing: please make sure it is a question that would be new to most members
An actual topic of discussion

Looking for support?

Looking for a community?

Lemmyverse: community search
sub.rehab: maps old subreddits to fediverse options, marks official as such
!lemmy411@lemmy.ca: a community for finding communities

~Icon~ ~by~ ~@Double_A@discuss.tchncs.de~

founded 5 years ago

MODERATORS

147

What's your favorite programming language and what about it do you like? (reddthat.com)

submitted 1 year ago by WackyTabbacy42069@reddthat.com to c/asklemmy@lemmy.ml

143 comments fedilink hide all child comments

you are viewing a single comment's thread
view the rest of the comments

[–] cocobean@bookwormstory.social 2 points 1 year ago (2 children)

I had to use Python for a bit at work and it was confusing

pipenv, venv, virtualenv, poetry...wtf is all this shit

a.b vs a['b'] vs a.get('b')...wtf is a KeyError

[–] richieadler@lemmy.myserv.one 5 points 1 year ago (2 children)

What happens in other languages you use when you try to access a non-existing key for a hash/map/dict?

What language do you use that accessing an object attribute is the same that accessing a dict key?

What knowledge do you have (or not) that KeyError is a mistery to you?

[–] Hallainzil@lemmy.world 3 points 1 year ago (1 children)

What language do you use that accessing an object attribute is the same that accessing a dict key?

Javascript / Typescript.

[–] richieadler@lemmy.myserv.one 3 points 1 year ago

Well, yeah, I thought about later. Lua does the same.

The other questions are still valid, though.

[–] cocobean@bookwormstory.social 1 points 1 year ago (1 children)

Return undefined.

Typescript.

Why error? Just return undefined. Simple, no try/catch needed.

[–] richieadler@lemmy.myserv.one 1 points 1 year ago (1 children)

Because that's prone to errors. And the Zen of Python includes "explicit is better than implicit" and "Errors should never pass silently". Languages that do otherwise create bad habits.

[–] cocobean@bookwormstory.social 0 points 1 year ago

Is it? It's just an optional property. And Typescript will tell you that it's optional.