isNull

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Availability

This routine is available starting with SIL Engine™ 1.0.

Syntax

isNull(variable)

Description

Checks if the provided variable is null or has no value associated then returns "true", otherwise returns "false".

Parameters

Parameter name	Required	Description
variable	Yes	Value you want to test. Value argument can be a string or a variable of any type.

Return type

boolean (true/false)

Examples

Example 1 - checking whether the assignee was selected for a ticket

if(isNull(assignee)) {
  assignee = reporter;
}

Example 2 - checking whether work was logged on ticket

The following line checks whether the Time Spent field contains any work logged on the ticket.

isNull(timeSpent)

You can also use the hasInput routine to check whether certain fields were filled out during a workflow transition. And among those fields you can also check the work logged in particular.

Notes

If isNull returns "true" the variable has no value attached. isNull returns "false" for zero for numeric variables or blank for character/string.

Simple Issue Language™