Two rows are added to the Spreadsheet
pane, above the target element:
- In the first row, Map Script is set to ‘if’. You cannot enter anything
in the Value column of this row.
- In the second row, Map Script is set to ‘condition’. Its value is an expression
that is evaluated to see whether it is true. If true, the target element is
set to the value specified in its ‘Value’ column. Initially, its Value column
is set to ‘fn:true()’, which means that the condition is always met, and the
target element is always set to the Value column.