OB SET NULL

OB SET NULL ( object ; property )

Parameter	Type		Description
object	Object, Object	→	Structured object
property	Text	→	Name of property where null value is to be applied

Description

The OB SET NULL command stores the null value in the language object designated by the object parameter.can be an object varialble or a 4D object field.

In the property parameter, pass the label of the property where you want to store the null value. If the property already exists in object, its value is updated. If it does not exist, it is created.
Note that the property parameter is case sensitive.

Example

We want to put the null value in the "age" property for Lea:

 var $ref : Object
 OB SET($ref;"name";"Lea";"age";4)
  // $ref = {"name":"Lea","age":4}
 ...
 OB SET NULL($ref ;"age")
  // $ref = {"name":"Lea","age":null}

See also

Null
OB GET PROPERTY NAMES
OB SET

Properties

Command number	1233
Thread safe	✓