isNull

A Workflow Engine function that returns true if the value for a field within an object is null, is an empty object , {}, or is an empty array , []. See Alert and Event Field Reference and Event and Alert Field Best Practice for more information on object fields.

This function is available for event, alert, and Situation workflows.

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Arguments

Workflow Engine function isNull takes the following arguments:

Name

Required

Type

Description

field

Yes

String

Object field.

Example

The following example demonstrates typical use of Workflow Engine function isNull.

{"field":"custom_info"}