this post was submitted on 18 Aug 2023
41 points (93.6% liked)
Programming
17318 readers
104 users here now
Welcome to the main community in programming.dev! Feel free to post anything relating to programming here!
Cross posting is strongly encouraged in the instance. If you feel your post or another person's post makes sense in another community cross post into it.
Hope you enjoy the instance!
Rules
Rules
- Follow the programming.dev instance rules
- Keep content related to programming in some way
- If you're posting long videos try to add in some form of tldr for those who don't want to watch videos
Wormhole
Follow the wormhole through a path of communities !webdev@programming.dev
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Because the reality is that people don't document errors (what exceptions can be raised by a method), don't explicitly handle all the cases (how many times have you returned a 500 in a Flask app from missing an error type in your
exceptblock/missing an errorhandler), or don't even think to put a try...except around fallible code (I see this a lot, anecdotally). TheEithermonad (or Rust'sResult, which I'm more familiar with) force you to do something with the error explicitly.Exceptional cases are just as normal a part of a program as any other flow, including the success flows. If you have 20 happy paths and 80 exception paths, and only cover those 20 happy paths, you've covered 20% of the cases.