@EMPTY

Description

This special variable represents an empty string. This smart parameter is often used to explicitly represent an empty string instead of passing a simple empty quote. There can also be a situation where this variable is the only possible way to correctly pass an empty string to an action that supports smart parameters.

Example

In this example, rrSet clears the custom page variable MyVar.

Action and result

Action and result
Action: `rrSet("@EMPTY","@P.MyVar")` Result: This example removes any existing value in the page variable `MyVar` if it exists. Action: `rrCompare("@EMPTY", "@X.message")` Result: This example checks to see if a DCO variable is empty. If the variable is empty, or does not exist, the action returns True.

Action: rrSet("@EMPTY","@P.MyVar")

Result: This example removes any existing value in the page variable MyVar if it exists.

Action: rrCompare("@EMPTY", "@X.message")

Result: This example checks to see if a DCO variable is empty. If the variable is empty, or does not exist, the action returns True.