IsNullOrWhitespace (StringValue)

Name	IsNullOrWhitespace (String)
Syntax	IsNullOrWhitespace (String val)
Purpose	To determine whether a string is null, if its length is zero, or if it contains only white space characters.
Description	Returns true if the specified string contains null value, if string length is zero, or if a string contains only white space characters. Note: White space characters are space, tab, return, and linefeed.
Return Type	Boolean
Parameters	val [System.String] – Expression that will be evaluated

Example

In this example, we will pass a whitespace value to the function transformation object using a Variables object.

In the output, you can see that the Boolean value, True, has been returned as the passed value consisted of whitespaces. If the same variable was passed through the IsNullOrEmpty function, The output would be false.