LastError

LastError (Function)

Format

lasterror
lasterror ( )

returns integer_expression

Description

Returns the number of the last runtime error or warning that was trapped with Try / Catch / EndTry or OnError. It keeps that value until the next error, also after the catch or the trap has finished. Before any error it returns 0.

Warnings have numbers from 65536 up. The numbers are listed on the Error Codes page, and most of them have a constant, so a program can test for example lasterror = error_divzero.

Example

print lasterror
try
   print 1 / 0
catch
   print "caught"
end try
print lasterror + " on line " + lasterrorline + ": " + lasterrormessage

will display

0
caught
50 on line 3: Division by zero

See more examples of usage on OnError and ThrowError pages.

See Also

Error Codes, Lasterror, Lasterrorextra, Lasterrorline, Lasterrormessage, Offerror, Onerror, ThrowError, Try / Catch / EndTry

History

0.9.6z	New To Version