Function: IsBlank

Use this function to check if a trimmed value is empty. A true or false value is returned as output.

Note:

In some cases, a Count function can be used instead of IsBlank. For example, to check if a Multiselect dropdown control is empty, the Count function may be better.

The reason for this example is that IsBlank(EmptyMultiselect) is False when the control has an empty array (zero items), while the Count function Count(EmptyMultiselect)< 1 is True.

Syntax	Description	Example
IsBlank(Value)	Checks for a blank value.

Arguments

For more information on arguments, see the table below.

Argument	Type	Description
Value	Required	Any single value of any type.

Examples

Let's assume that we have the below Textboxes that contain the following values:

Textbox Name	Value/Content
EmptyTextbox
HelloTextbox	”Hello World”
Slider	0

We can apply the IsBlank function as follows:

• IsBlank(””): True
• IsBlank(” ”): True
• IsBlank(”!”): False
• IsBlank(“Grape”): False
• IsBlank(EmptyTextbox): True
• IsBlank(HelloTextbox): False
• IsBlank(Slider): False