Empty Function (Usual)

 FUNCTION Empty(
	uValue AS USUAL
) AS LOGIC

public static bool Empty(
	Usual uValue
)

Parameters

uValue

Type: Usual
An expression of any data type.
The criteria for determining whether a value is considered empty depends on the data type of uValue, according to the following rules:

Data Type	Contents
Array	NULL_ARRAY or empty array
Code block	NULL_CODEBLOCK
Date	NULL_DATE
Logic	FALSE
NIL	NIL
VOID	TRUE
Numeric	0
Object	NULL_OBJECT
PSZ	NULL_PSZ
PTR	NULL_PTR
String	Spaces, tabs, carriage return/line feed, or NULL_STRING
Symbol	NULL_SYMBOL

Return Value

Reference