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45 lines
1 KiB
Markdown
45 lines
1 KiB
Markdown
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The [ERR](ERR) function returns the last QBasic error code number.
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## Syntax
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> errorNum% = [ERR](ERR)
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## Description
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* If there is no error, the function returns 0
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* Can be used in an error handling routine to report the last error code number.
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## Example(s)
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Simulating an error to test a program error handler that looks for a "Subscript out of range" error.
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```vb
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ON ERROR GOTO handler
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IF x = 0 THEN ERROR 111 'simulate an error code that does not exist
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x = x + 1
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IF x THEN ERROR 9 'simulate array boundary being exceeded
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END
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handler:
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PRINT ERR, _ERRORLINE
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BEEP
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IF ERR = 9 THEN
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PRINT "The program has encountered an error and needs to close! Press a key!"
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K$ = INPUT$(1)
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SYSTEM
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END IF
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RESUME NEXT 'RESUME can only be used in error handlers
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```
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## See Also
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* [ON ERROR](ON-ERROR), [RESUME](RESUME)
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* [ERL](ERL)
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* [_ERRORLINE](_ERRORLINE), [_INCLERRORLINE](_INCLERRORLINE), [_INCLERRORFILE$](_INCLERRORFILE$), [_ERRORMESSAGE$](_ERRORMESSAGE$)
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* [ERROR](ERROR)
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* [ERROR Codes](ERROR-Codes)
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