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.
See also