Function: try()

Evaluates an Expression and returns its value unless an error has occurred. If an error occurs, the error value is placed into an internal variable called _error and the 2nd Expression is evaluated.

Syntax

try(expression1, expression2)

Examples

try( $val = toNum(crm.total), do( $SysError = _error + in.accountKey, -1 ) )

The first expression tries to convert crm.total to a number. If the conversion fails, the reason for the failure is stored in the internal variable _error. This value, along with a value from the in pipe is stored in the user defined $SysError variable, and a value of -1 is returned.

See Also

• Functions