Is Defined Method

The Is Defined method tests if a variable or object property is defined. It returns one of the following values:

• The item is defined. It returns the following value:

  True

• The item is not defined. It returns the following value:

  False

This method is unique to Siebel eScript. For more information, see Make Sure the JavaScript Interpreter Can Run a Function.

Format

defined(var)

The following table describes the arguments for the Is Defined method.

Argument	Description
var	The variable or object property you must query.

Example

The following example includes two uses of the Is Defined method. The first use examines a variable named t. The second use examines an object named t.t:

var t = 1;

   if (defined(t))

   TheApplication().Trace("t is defined");

   else

   TheApplication().Trace("t is not defined");
   if (!defined(t.t))

   TheApplication().Trace("t.t is not defined"):

   else

   TheApplication().Trace("t.t is defined");

For more information, see Undefine Method.