Purpose
Placeholder statement.
Example
A:;
B:;
C: ON ENDPAGE (F);
In this example, the ON statement has a null ON-unit and is preceded by two labeled null statements, effectively giving the ON statement three labels. However, these labels do not compare equally because they designate different statements.
Description
The NULL statement performs no action, but is used to provide null THEN or ELSE clauses in IF statements, null ON-units in ON statements, or to allow multiple label prefixes.