How does apps and websites handle errors..????

Question

When writing codes we sometimes experience bugs or errors,how does a real,published app handle such errors,does it completely shut down ⚠Not responding ⚠,or it overlooks such errors and moves on or must one be extremely careful not to include such errors.

How does an app or website handle code errors or bugs.....????

Answer 1

Published apps are well tested to remove any mistakes but still contain error handling mechanisms like try...catch to handle unexpected errors.