a!isNullOrEmpty() Function

Function

Returns true if the value is null, an empty string, or an empty list. Otherwise returns false.

See also:

Parameters

Keyword Type Description

value

Any Type

Value to be checked.

Returns

Boolean

Usage considerations

Replace if() and isnull() expressions with a!isNullorEmpty

This function is similar to the behavior of using if() and isnull() to check for the absence of a value or an empty string or list.

For example, you could create an expression using if() and isnull():

1
2
3
4
5
6
7
or( 
    or(tostring(ri!input) = "", isnull(ri!input)), 
    if(isnull(ri!input), 
        true, 
        length(a!flatten(ri!input)) = 0
    ) 
)

Or you could use a!isNullorEmpty(), which requires fewer lines of code:

1
a!isNullOrEmpty(ri!input)

Examples

1
a!isNullOrEmpty(togroup(null))

Returns true

1
a!isNullOrEmpty("")

Returns true

1
a!isNullOrEmpty({1,2,3,4})

Returns false

1
a!isNullOrEmpty(cast(recordType!Address, null))

Returns true

1
a!isNullOrEmpty(recordType!Address)

Returns false

Open in Github Built: Mon, Dec 06, 2021 (04:19:37 PM)

On This Page

FEEDBACK