Question

I am working with old ASP code and I am not sure about semantics of on error goto 0 and error resume next construction.

Can you recommend me some useful resources or enlight me directly?

Answer 1

On error resume next: If there is an exception in the program, just ignore it and continue to the next statement. Considered very bad and ugly, and rightly so in my opinion. It’s like having a big:

try
{
  // your code
}
catch
{
  // nothing! muhaha
}

in every method of your code (or worse, around the whole program).

On error goto 0: disables any error handler that is defined in the current procedure. It’s like having a big try-catch around your code, which gets disabled as soon as its hit this line.

For more information, see the MSDN.