Your understanding otherwise seems on point, but I'm not sure they can ever be the same. An exception is the representation of programmer fault. An error, on the other hand, is the representation of faults outside of the programmer's control.
Like you point out, operating on a missing table is a mistake made by the programmer. This fault could have been avoided when the code was written. The table not being there is not within the control of the developer (with some assumptions of what table is meant to mean here) and no amount of perfect coding could have avoided the situation.
> Most failures in JavaScript are exceptions
Idiomatic Javascript suggests handling errors using its exception handling mechanism, but the payload is still error in nature. In fact, the base object the idioms suggest you use to hold error data, passed using the exception handler, is literally called Error.
Javascript may be confused by having no official "Exception" type. Although arguably it does not need one as you can simply throw a string, which is all you need for an exception. The exception handler will tack on the rest of the information you need to know automatically. Java takes a different opinion, though, having two different, albeit poorly named, built-in classes for errors (Exception) and exceptions (RuntimeException).
Your understanding otherwise seems on point, but I'm not sure they can ever be the same. An exception is the representation of programmer fault. An error, on the other hand, is the representation of faults outside of the programmer's control.
Like you point out, operating on a missing table is a mistake made by the programmer. This fault could have been avoided when the code was written. The table not being there is not within the control of the developer (with some assumptions of what table is meant to mean here) and no amount of perfect coding could have avoided the situation.
> Most failures in JavaScript are exceptions
Idiomatic Javascript suggests handling errors using its exception handling mechanism, but the payload is still error in nature. In fact, the base object the idioms suggest you use to hold error data, passed using the exception handler, is literally called Error.
Javascript may be confused by having no official "Exception" type. Although arguably it does not need one as you can simply throw a string, which is all you need for an exception. The exception handler will tack on the rest of the information you need to know automatically. Java takes a different opinion, though, having two different, albeit poorly named, built-in classes for errors (Exception) and exceptions (RuntimeException).