See also: ifEmpty, if (if, then, else), trim (Calculation expression – cutting off whitespaces)
The $isEmpty function returns true if the transferred text is empty/null.
Tooltip
Syntax: $isEmpty(text)
Name
Description
textThe text, which is checked for empty.
â–ºIMPORTANTâ—„ The transferred value is cleared of leading or attached whitespaces (e.g. spaces, tab, etc.).
Thus a value, which consists only of spaces, is considered empty.
f the transferred text is empty, true is returned, otherwise false.
Examples: $isEmpty( ) – returns true, $isEmpty(0) returns false, $isEmpty(Hallo) returns false
Syntax
$isEmpty(text)
Parameter
Name | Description |
|---|---|
text | The text, which is checked for empty. â–ºIMPORTANTâ—„ The transferred value is cleared of leading or attached whitespaces (e.g. spaces, tab, etc.). Thus a value, which consists only of spaces, is considered empty. |
Return value
If the transferred text is empty, true is returned, otherwise false.
Example
Syntax | Result |
|---|---|
$isEmpty(Jonas Abend) | false |
$isEmpty(0) | false |
$isEmpty() | true |
$isEmpty( ) | true |
$isEmpty( ) | true |