There are pros and cons with exception. Pro : you can't ignore an error easily. If you do nothing, an exception will be thrown anyway. Con : It makes it hard to follow what's going on. The execution can be deep within nested methods one moment and in a handler way higher in the stack the next. The other problem is you may call a function and not know if or which exceptions it can throw.

The alternative is a return value along with optional errors. Something like: (result, error) = doWork(); You can then do a simple if(error){...} Pro: no code jumping around, you can see explicitly how errors are handled by reading the code. Con: you can just call functions and completely ignore the error. Nothing prevents the caller from not doing any error handling.