Actually, exception rethrowing is a real thing - at least in Java. You may not always want to handle the exception at the absolute lowest level, so sometimes you will instead “bubble” the exception up the callstack. This in turn can help with centralizing exception handling, separation of concerns, and making your application more modular.
It seems counter-intuitive but it’s actually legit, again at least in Java. lol
Rethrowing caught exception in C# is just throw;, not throw ex;. This will delete old stack trace, which is very punishable if someone debugs your code later and you’re still around.
throw ex; treats ex as a new exception, so, it starts a new stack trace for it from itself and deletes stack trace that was saved in ex.StackTrace. On the other hand, throw; takes already present exception in the scope and throws it without modifying the stack trace, preserving the original method that threw ex in the stack trace.
I feel like I wrote the same thing twice. I’m a bit bad with explaining stuff, feel free to ask more specific questions if you still don’t understand the difference.
Actually, exception rethrowing is a real thing - at least in Java. You may not always want to handle the exception at the absolute lowest level, so sometimes you will instead “bubble” the exception up the callstack. This in turn can help with centralizing exception handling, separation of concerns, and making your application more modular.
It seems counter-intuitive but it’s actually legit, again at least in Java. lol
If your just going to let something higher on the call stack handle it, why catch it in the first place?
Rethrowing caught exception in C# is just
throw;, notthrow ex;. This will delete old stack trace, which is very punishable if someone debugs your code later and you’re still around.I am a somewhat new C# developer (2 years). Could you explain more about this?
throw ex;treatsexas a new exception, so, it starts a new stack trace for it from itself and deletes stack trace that was saved inex.StackTrace. On the other hand,throw;takes already present exception in the scope and throws it without modifying the stack trace, preserving the original method that threwexin the stack trace.I feel like I wrote the same thing twice. I’m a bit bad with explaining stuff, feel free to ask more specific questions if you still don’t understand the difference.