js editor
Web development
Returns the data type of an expression.
 Note: |
|---|
| VARTYPE(В ) is similar to the TYPE(В ) function, but VARTYPE(В ) is faster and does not require quotation marks to enclose the expression for which the data type is returned. |
VARTYPE(eExpression [, lNullDataType]) |
Parameters
- eExpression
-
Specifies the expression for which the data type is returned. VARTYPE(В ) returns a single character indicating the data type of the expression.
The following table lists the characters that VARTYPE(В ) returns for each data type.
Return value Data type C
Character, Memo, Varchar, Varchar (Binary)
D
Date
G
General
L
Logical
N
Numeric, Float, Double, or Integer
O
Object
Q
Blob, Varbinary
T
DateTime
U
Unknown or variable does not exist
X
Null
Y
Currency
| Note: |
|---|
| If eExpression is an array, the first element in the array is evaluated. |
- lNullDataType
-
Specifies whether VARTYPE(В ) returns the data type when eExpression contains the null value.
The following table lists the values of lNullDataType.
lNullDataType Description True (.T.)
Return data type for eExpression.
False (.F.) or omitted
Return 'X' to indicate eExpression contains a null value.
Return Value
Character. VARTYPE( ) returns a character representing the data type of the specified expression.