Empty( ) is a built-in Visual FoxPro function which determines whether an expression evaluates to empty.
The expression you include can be a character, numeric, date, or logical expression. EMPTY( ) returns true (.T.) when expressions evaluate to the following:
Expression type |
Evaluates to |
Character |
The empty string, spaces, tabs, carriage returns, linefeeds, or any combination of these. |
Numeric |
0 |
Date |
Empty ({}) |
Logical |
False (.F.) |
Syntax
Empty(eExpr)
Returns
Logical
Page url: http://www.racematenet.com/english/help/index.html?empty.htm