Class: Null

system.rules. Null


new Null( [value] [, strict])

Evaluates if the condition is null.

Parameters:
Name Type Argument Default Description
value object <optional>
null

The value to evaluate.

strict boolean <optional>
false

This flag indicates if the condition use == or === to evalute the value.

Implements:
Example
var Null = system.rules.Null ;

var cond ;

cond = new Null( undefined , true ) ;
trace( cond.eval() ) ; // false

cond = new Null( undefined ) ;
trace( cond.eval() ) ; // true

cond = new Null( null ) ;
trace( cond.eval() ) ; // true

cond = new Null( "hello" ) ;
trace( cond.eval() ) ; // false

Extends

Members


strict :boolean

The value to evaluate.

Type:
  • boolean
Default Value:
  • false

value :object

The value to evaluate.

Type:
  • object
Default Value:
  • undefined

Methods


<static> Null#eval()

Evaluates the specified object.


eval()

Evaluates the specified condition.

Inherited From:
Implements:

toString()

Returns the string representation of this instance.

Inherited From:
Implements:
Returns:

the string representation of this instance.